Nng cao tin cy cung cp in trn li in phn phi

Nng cao tin cy cung cp in trn li in phn phi

12/04/2012 09:33:41 tin cy cung cp in ca li in phn phi c hiu l kh nng ca h thng cung cp y v lin tc in nng cho h tiu th vi cht lng in nng (in p v tn s) m bo (ng quy nh).

A. tin cy cung cp in:

nh gi tin cy cung cp in, EVN c cc quy nh v ch tiu sut s c (ng dy v trm bin p) trong qun l vn hnh h thng in lm c s cho vic nh gi cht lng qun l vn hnh ngun li p ng yu cu cung ng in lin tc cho khch hng. C th nh sau:

- Sut s c thong qua ng dy trung th : 12 v / 100 km.nm.

- Sut s c vnh cu ng dy trung th : 3,6 v / 100 km.nm.

- Sut s c vnh cu TBA : 1,8 v / 100 MBA.nm

T cc quy nh trn buc cc n v thnh vin phi tch cc a ra k hoch v cc phng n ci thin cht lng cung ng in trn h thng in ton quc, ng thi c tc ng tch cc n thc trch nhim ca i ng cn b cng nhn vin lm cng tc qun l k thut vn hnh h thng in. Tuy nhin, vic nh gi tin cy cung cp in qua ch tiu sut s c cn mt s bt cp sau :

- Ch tiu sut s c ch cho bit s ln mt in (do s c) trung bnh ca h thng. Ta khng bit c s ln v thi gian mt in ca khch hng, cng nh phm vi mt in, lng cng sut v in nng khng cung cp c (do mt in); t tnh ton cc thit hi do mt in gy ra v ra cc bin php thch hp gim s ln v thi gian mt in khch hng, cng nh gim phm vi mt in tng tin cy ca h thng.

- Vi ch tiu sut s c nu trn, ta khng thy r hiu qu kinh t em li ca cc d n ci to li in, lp t cc h thng t ng phn on s c cng nh h thng t ng ho li in phn phi, c bit l s cn thit phi xy dng cc mch lin lc gia cc trm ngun, cc mch vng cung cp in ... gim thi gian mt in cng nh hn ch phm vi (s h mt in, lng cng sut v in nng khng cung cp c) do s c hoc thao tc hay bo dng th nghim nh k.

gii quyt vn trn, cn phi xy dng thm nhiu ch tiu c th nh gi thc cht tin cy cung cp in v cht lng vn hnh ca li in cng nh cng tc qun l vn hnh.

Mt s Cng ty in lc cc nc xy dng cc ch s cht lng theo di tin cy vn hnh ca h thng. Cc ch s cht lng ny c th dng so snh cht lng phc v gia cc Cng ty, gia cc n v trong cng Cng ty hay dng so snh trc tip cht lng trc v sau ci to ca mt xut tuyn hay ca c mt h thng.

T chc IEEE (Institute of Electrical and Electronic Engineers) ca M xy dng mt s ch s nh gi tin cy cung cp in, c th nh sau :

A.1 - Cc ch s nh gi tin cy v mt mt in ko di :

1. Ch s tn sut mt in trung bnh ca h thng (System Average Interruption Frequency Index SAIFI): Ch s ny cung cp thng tin v s ln mt in trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

2. Ch s thi gian mt in trung bnh ca h thng (System Average Interruption Duration Index - SAIDI): Ch s ny cung cp thng tin v thi gian (pht hoc gi) mt in trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

3. Ch s thi gian mt in trung bnh ca khch hng (Customer Average Interruption Duration Index - CAIDI): Ch s ny th hin thi gian trung bnh cn phc hi cung cp in cho khch hng trong mt ln mt in (vnh cu).

4. Ch s tng thi gian mt in trung bnh ca khch hng (Customer Total Average Interruption Duration Index - CTAIDI): i vi khch hng thc t mt in, ch s ny th hin tng thi gian trung bnh khch hng trong thng bo b mt in. Ch s ny c tnh ton nh ch s CAIDI, tr vic khch hng b mt in nhiu ln ch c tnh mt ln.

5. Ch s tn sut mt in trung bnh ca khch hng (Customer Average Interruption Frequency Index -CAIFI): Ch s ny th hin s ln mt in trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

6. Ch s sn sng cp in trung bnh (Average Service Availability Index ASAI): Ch s ny th hin thi gian trung bnh (thng tnh bng %) m khch hng c cung cp in trong vng mt nm. c nh ngha l t s gia tng s gi ca khch hng c cung cp trong nm v tng s gi khch hng yu cu (s gi khch hng yu cu = 24gi/ ngy*365 ngy = 8760 gi ).

7. Ch s tn sut mt in trung bnh ca h thng (Average System Interruption Frequency Index ASIFI) v mt ph ti : c nh ngha l t s gia tng s cng sut (kVA) b gin on trn tng s cng sut (KVA) c cung cp.

y l ch s quan trng i vi cc khu vc cp in ch yu cho cng/thng nghip. Ch s ny cng c s dng bi cc cng ty khng c h thng theo di khch hng.

8. Ch s thi gian trung bnh mt in ca h thng (Average System Interruption Duration Index ASIDI) v mt ph ti : c nh ngha l t s gia tng in nng khng cung cp c (do b gin on cung cp in) trn tng s cng sut (KVA) c cung cp.

9. Ch s tn sut mt in trung bnh ca khch hng (Customers Experiencing Multiple Interruptions - CEMIn): Ch s ny theo di s s kin (n) nhng ln mt in i vi mt khch hng no . Mc ch l xc nh s phin toi cho khch hng m gi tr trung bnh khng thy c.

A.2 - Cc ch s nh gi tin cy v mt mt in thong qua

1. Ch s tn sut mt in thong qua trung bnh ca h thng (Momentary Average Interruption Frequency Index MAIFI): Ch s ny cung cp thng tin v s ln mt in thong qua trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

2. Ch s tn sut mt in thong qua trung bnh ca h thng (Momentary Average Interruption event Frequency Index MAIFIE): Ch s ny cung cp thng tin v con s trung bnh ca cc s kin mt in thong qua ca mt khch hng (trong mt khu vc) trong mt nm.

3. Ch s tn sut mt in (thong qua v ko di) trung bnh ca khch hng (Customers Experiencing Multiple Sustained Interruptions and Momentary Interruptions events CEMSMIn): Ch s ny theo di s s kin (n) nhng ln mt in thong qua v ko di i vi mt khch hng no . Mc ch l xc nh s phin toi cho khch hng m gi tr trung bnh khng thy c.

A.3 - Mt s ch s nh gi tin cy cung cp in khc

1. Ch s khng sn sng cp in trung bnh (Average Service Unavailability Index - ASUI)

2. Ch s in nng khng cung cp (Energy Not supplied Index - ENS)

3. Ch s in nng khng cung cp trung bnh (Average Energy Not supplied Index - AENS)

Phn ln cc nc trn th gii ang p dng cc ch s SAIFI, SAIDI, CAIFI, CAIDI nh gi tin cy cung cp in v hin nay Vit Nam ang trin khai p dng cc ch s SAIDI, SAIFI, MAIFI nh gi tin cy cung cp in.

B. Cc bin php nng cao tin cy cung cp in

nng cao tin cy cung cp in trn li phn phi, c hai gii php chnh:

Gii php lm gim s c v

Gii php lm gim thi gian mt in.

B.1 - Cc bin php lm gim s c (ngn chn s c xy ra)

1. Nng cao cht lng ca thit b vn hnh: S dng cc thit b c cht lng vn hnh tt (lu : thit b c, vn hnh lu ngy hay thit b mi nhng c cht lng thp vn gy ra sut h hng cao) v c tnh t ng ha cao. Ln k hoch v tng bc thay th cc thit b c sut h hng cao bng cc thit b mi v c sut h hng thp.

V d nh Tng Cng ty in lc min Trung trin khai p dng cc cch in ng loi line post v pin post thay cho cc cch in ng loi pin type (truyn thng) c sut s c cao. Khuyn co khng s dng cc my ct (S&S), cc recloser (VR3S), cu ch t ri c sut s c cao.

2. Trong thit k, mua sm, lp t cn s dng cc vt t, thit b v p dng cc gii php ph hp vi iu kin vn hnh li in nhm gim bt cc s c c tc nhn t bn ngoi, v d nh :

- S dng dy bc cch in ngn nga cc s c do tip xc vi cc vt th khc.

- S dng cc thit b ph hp vi mi trng vn hnh nh s dng s chng nhim mn khi cc ng dy i qua khu vc gn bin b nhim mn,

- Lp t cc chng st ng dy, m phng cho cc ng dy i qua cc vng c mt st ln, sut s c do st cao.

3. Tng cng cng tc kim tra, bo dng ng dy, thit b vn hnh trn li ngn nga s c ch quan.

- Trang b y phng tin phc v cho cng tc qun l vn hnh, bo dng nh xe thang, thit b kim tra pht nng

- o to nng cao kin thc v tay ngh cng tnh k lut cho nhn vin vn hnh.

- Tng bc nng cao t l sa cha li in bng hnh thc hot-line (sa cha khi li in ang vn hnh).

B.2 - Cc bin php lm gim thi gian mt in (khoanh vng v khc phc s c nhanh)

1. Gim n mc ti thiu khu vc mt in bng cch tng s lng lp t thit b phn on.

2. Nhanh chng khoanh vng s c bng cch p dng cng ngh t ng ha li in phn phi nhm t ng phn vng s c.

3. Xy dng h thng mch kp (2 mch), mch vng

4. Khc phc s c nhanh.

- Xc nh nhanh im s c bng cc thit b chuyn dng d im s c nh thit b ch th s c (Fault indicator)

- Trang b cc thit b chuyn dng x l s c.

- Tng cng cng tc bi dng, hun luyn nhn vin vn hnh v trnh v k nng x l s c.

Phn tip theo s gii thiu mt thit bi bao s c ng dy trn khng (Fault indicator) loai FLA3 cua hang EMG/GERMANY c kh nng xac inh ngay vng s c, gip pht hin v x ly nhanh im s c, kt qu l gim c thi gian mt in ca khch hng. iu ny ng ngha vi vic ci thin ng k cc ch s SAIFI, SAIDI, CAIFI, CAIDI; nng cao cht lng cung cp in ca cc cng ty in lc.

C. Thit b bo s c FLA3 ca hng EMG (Cng ha Lin bang c)

C.1 - Nguyn l hoat ng

Thit b bo s c thc cht l cc cm bin dng in. Khi dng in i qua thit b bo s c c gi tr vt qu gi tr ci t trc (dng in v thi gian), thit b bo s c s tc ng v bo hiu bng n hay c gip nhn vin qun l vn hnh nhanh chng tm ra im s c.

C.2 Phm vi p dng

FLA3 c dng cho ng dy trn khng.

Vi s li in nh hnh 1, s c loi FLA3 (Mt nm u nhnh r 1, hai nm sau nhnh r 2 v 3 nm u nhnh r 3). Khi c s c trn nhnh r NR3, s xut hin dng ngn mch chy qua cc thit b bo c 2 v 3 lm cc thit b ny tc ng bo s c qua tn hiu n v c. Khi my ct u ngun ct ra, nhn vin qun l vn hnh kim tra cc thit b bo s c:

- u tin kim tra thit b bo s c 1 nhnh r NR1, khng thy tn hiu chng t s c nm trn trc chnh pha sau nhnh r 1.

- Kim tra thit b ch bo s c 2, thy bo tn hiu, chng t c s c pha sau n. Reset li thit b ch th s c ny v kim tra tip.

- Kim tra thit b ch th bo s c 3 trn nhnh r NR3, thy bo tn hiu, chng t c s c trn nhnh r 3. C lp nhnh r NR3 v ngh ng li my ct u ngun cp in cho cc phn on khng b s c. Tin hnh kim tra v sa cha s c trn nhnh r NR3.

Thit b FLA3 cn c th pht huy hiu qu cao hn nu c 2 xut tuyn i ra t mt feeder. Trong trng hp , chng ta c th gim ti 50% thi gian d tm s c v khi , ch FLA3 trn xut tuyn c s c mi bo tn hiu, v chng ta c th c lp ngay xut tuyn v ng li my ct u ngun ti lp cung cp in cho xut tuyn khng b s c.

C.3 Nhng u im ca FLA3

1. Thit b FLA3 s dng lp t cho ng dy trn khng vi cp (hay dy trn) c ng knh ti 38mm (Maximum 40mm). Kt cu ngm FLA3, c thit k chc chn, thich hp lp t vi hu ht cc loi cp trn khng, ngay c cc loi cp trn khng c chiu dy lp cch in cao nh ti li in ca in lc thnh ph H Ch Minh.

2. Thit b FLA3 c thit k c th lp t hay tho ra bng so thao tc "Hot-Line" nn rt thun tin khi lp t hay tho g thay i v tr s dng trn li m khng phi cp in.

3. Ch th chnh xc v tin cy, s dng n gin v hiu qu.

4. Kt cu gn nh, nhng chc chn, m bo cho vic vn hnh an ton.

5. Ch th s c bng FLAG (mu cam) v LED (nh sng trng) nn c th d dng pht hin lc ban ngy hay ban m.

6. Cc thng s vn hnh ca FLA3 u c ci t qua "REMOTE CONTROL" sau khi c lp t trn li tu theo yu cu ca ngi s dng.

- Thi gian bo s c: 30 720min (12 gi) vi bc chnh l 30pht

- Dng hot ng: t 40 1.500A vi bc chnh 20A

- Thi gian chu xung (qu ): 40 300ms vi bc chnh 20ms (mi-li-giy)

7. Ngi s dng c th c kim tra hay iu chnh cc thng s vn hnh ci t ca FLA3 qua b "REMOTE CONTROL" di t. Phn mm n gin v thn thin vi End-User.

8. Thit b FLA3 c th hot ng theo thng s ci t theo yu cu ca ngi s dng hay hot ng theo ch "AUTO" (ch AUTO: thit b FLA3 hot ng theo s thay i dng ti ca li).

9. Thng qua b REMOTE CONTROL ngi s dng c th "SELF TEST " - kim tra hot ng ca FLA3 trc v sau khi lp t trn li.

10. Thng qua b REMOTE CONTROL ngi s dng c th c c dng in ang vn hnh trn li in m FLA3 ang treo.

V Khc Hong - Li in cao th min Trung (CGC)

Nghin cu cht lng in cho li phn phi v p dng phn mm PSS/ADEPT cho l 371

Ngun: http://www.kilobooks.com/threads/56914-Nghin-cu-cht-lng-in-cho-li-phn-phi-v-p-dng-phn-mm-PSS-ADEPT-cho-l-371?s=211bbda06a95c485ec564c22629009c9#ixzz1yEEihR8iTh Vin in T www.KILOBOOKS.comLi m u.Chng 1: Li phn phi v cc vn chung v cht lng inLun Vn - n - Tiu Lun in Tnng.Chng 2: Cc ch tiu c bn nh gi cht lng in nng trong li phn phi.Chng 3: Cc phng php nh gi cht lng in.Chng 4: Cc bin php nng cao cht lng ins dng cc chng chnh MATLAB m phngChng 5: S dng phn mm PSS/ADEPT tnh ton cht lng in p cho li in tnh Hng Yn.Kt lun.( Tng 130 trang)Trch t: http://www.kilobooks.com

Ngun: http://www.kilobooks.com/threads/56914-Nghin-cu-cht-lng-in-cho-li-phn-phi-v-p-dng-phn-mm-PSS-ADEPT-cho-l-371?s=211bbda06a95c485ec564c22629009c9#ixzz1yEEV3RAJTh Vin in T www.KILOBOOKS.com\

Li in phn phi v vn k thut gim tn tht in nng.

1. S pht trin ca li in phn phiPhn phi in l khu cui cng ca h thng in a in nng trc tip n ngi tiu dng. Li in phn phi bao gm li in trung p v li in h p. Tnh n cui nm 2004, tng chiu di ng dy trung p bng khong 115 nghn km, tng chiu di ng dy h p gn 110 nghn km, tng dung lng cc trm bin p h p gn 29 nghn MVA. Li in phn phi do 3 cng ty in lc min, 2 cng ty in lc thnh ph v 3 cng ty in lc tnh qun l. n thng 6 nm 2005, li in phn phi cung cp in cho 525 huyn trong tng s 536 huyn trn 64 tnh thnh ph. Nu tnh theo s x, c 8689 x trong tng s 9024 x trn c nc c in. Cc x, huyn cn li cha c in li Quc gia hin ang s dng ngun in ti ch l thy in nh hoc my pht in diesel [1].Chng trnh in nng thn ca Chnh ph s tip tc y mnh pht trin li in phn phi, m bo 100% s x, huyn c cp in. Cng vi Tng s pht trin in lc VI c ph duyt l k hoch ci to v pht trin li in trung p. Khi lng li in phn phi d kin xy dng n nm 2020 s bao gm hn 120.000 km ng dy trung p, gn 85.000 MVA trm phn phi v gn 93.000 km ng dy h p [1]. Khi lng d kin ci to v xy dng s tng ng vi khi lng li phn phi hin hu. Vi li in phn phi c quy m gp i hin ti, cc cng ty in lc v cc in lc tnh, thnh ph s phi i din vi nhng kh khn nht nh trong cng tc qun l u t xy dng v qun l vn hnh. Do vy, vic m bo v nng cao nng lc qun l l cn thit v phi ch trng ngay t giai on chun b hin nay. Cc vn k thut ca li in phn phi trong c vn gim tn tht in nng vn s l trng tm trong cng tc iu hnh qun l. gii quyt cc kh khn ny, ng thi nng cao nng lc qun l k thut trong c vn gim tn tht in nng, cc Cng ty in lc cn ng dng cc bin php cng ngh hin i ang ngy cng c s dng ph bin trn th gii.2. Mt s c im ca li in phn phiLi in phn phi c cc c im v thit k v vn hnh khc vi li in truyn ti. Li in phn phi phn b trn din rng, thng vn hnh khng i xng v c tn tht ln hn. Kinh nghim cc in lc trn th gii cho thy tn tht thp nht trn li phn phi vo khong 4%, trong khi trn li truyn ti l khong 2% [2]. Vn tn tht trn li phn phi lin quan cht ch n cc vn k thut ca li in t giai on thit k n vn hnh. Do trn c s cc s liu v tn tht c th nh gi s b cht lng vn hnh ca li in phn phi.Trong nhng nm gn y, li in phn phi ca nc ta pht trin mnh, cc Cng ty in lc cng c phn cp mnh v qun l. Cht lng vn hnh ca li phn phi c cng cao r rt, t l tn tht in nng gim mnh. T l tn tht trn li phn phi t mc cao nht ti Cng ty in lc 2 nm 2000 bng 12% n nm 2004 ch cn 9,4%. T l tn tht ca Cng ty in lc ng Nai sut 5 nm qua mc 4% n 5% gn mc thp nht. Mc d t l tn tht trn li in phn phi gim ng k trong thi gian qua,nhng mc gim tn tht ny vn cn rt khim tn. Chnh ph c quyt nh yu cu EVN gim mc tn tht trn ton li in (bao gm c li truyn ti) xung mc 11% vo nm 2006 v 9% vo nm 2010 [3]. Thc t trong 6 thng u nm 2007, mc tn tht in nng ca EVN l 11,43%, cao hn k hoch l 0,93% [4]. Nh vy vn cn nhiu bin php ng b cn thc hin t c mc tiu gim tn tht trn li in. Phn tch cc bin php gim tn tht in nng cho thy nu thc hin tt, tn tht in nng trn li phn phi c th h thp ng k. Chng hn nh trng hp in lc Th c, nm 2003 t l tn tht vo khong 5%, nm 2004 t l gim xung cn 4,79%, n nm 2005 l 4,32% v nm 2006 gim xung mc 4,15% [5]. Tn tht trn li in phn phi bao gm tn tht phi k thut (tn tht thng mi) v tn tht k thut. Tn tht phi k thut (tn tht thng mi) bao gm 4 dng tn tht nh sau [2]: Trm in (cu, mc trm). Khng thanh ton hoc chm thanh ton ha n tin in. Sai st tnh ton tn tht k thut. Sai st thng k phn loi v tnh ha n khch hng.Tn tht phi k thut ph thuc vo c ch qun l, quy trnh qun l hnh chnh, h thng cng t o m v thc ca ngi s dng. Tn tht phi k thut cng mt phn chu nh hng ca nng lc v cng c qun l ca bn thn cc in lc, trong c phng tin my mc, my tnh, phn mm qun l.Tn tht k thut trn li in phn phi ch yu trn dy dn v cc my bin p phn phi. Tn tht k thut bao gm tn tht cng sut tc dng v tn tht cng sut phn khng. Tn tht cng sut phn khng do t thng r v gy t trong cc my bin p v cm khng trn ng dy. Tn tht cng sut phn khng ch lm lch gc v t nh hng n tn tht in nng. Tn tht cng sut tc dng c nh hng ng k n tn tht in nng. Thnh phn tn tht in nng do tn tht cng sut tc dng c tnh ton nh sau: A = P( t). dt (1)Trong , P(t) l tn tht cng sut tc dng trn ng dy v my bin p ti thi im t. Vic tnh ton tn tht in nng theo cng thc (1) thng thng thc hin theo phng php dng in ng tr ph thuc vo th ph ti hoc theo thi gian s dng 4 cng sut ln nht [7]. Tn tht cng sut tc dng bao gm tn tht st, do dng in Foucault trong li thp v tn tht ng do hiu ng Joule trong my bin p. Cc loi tn tht ny c cc nguyn nhn ch yu nh sau: ng dy phn phi qu di, bn knh cp in ln Tit din dy dn qu nh, ng dy b xung cp, khng c ci to nng cp My bin p phn phi thng xuyn mang ti nng hoc qu ti My bin p l loi c t l tn tht cao hoc vt liu li t khng tt dn n saumt thi gian tn tht tng ln Vn hnh khng i xng lin tc dn n tng tn tht trn my bin p Nhiu thnh phn sng hi ca cc ph ti cng nghip tc ng vo cc cundy my bin p lm tng tn tht Vn hnh vi h s cos thp do thiu cng sut phn khng3. Cc gii php k thut gim tn tht trn li phn phiMc tiu gim tn tht trn li in phn phi chu tc ng ca rt nhiu yu t v i hi nhiu bin php ng b. Cc bin php qun l, hnh chnh nhm gim tn tht thng mi cn thc hin song song vi cc n lc gim tn tht k thut. C th lit k cc bin php chnh gim tn tht k thut trong li in phn phi nh sau: Ti u ha cc ch vn hnh li in Hn ch vn hnh khng i xng Gim chiu di ng dy, ci to nng tit din dy dn hoc gim bn knh cpin ca cc trm bin p Lp t h thng t b cng sut phn khng m bo h s cng sut cos Tng dung lng cc my bin p chu ti nng, qu ti, la chn cc my bin p t l tn tht tht thp, li thp lm bng vt liu thp tt, lp t cc my bin p 1 pha.Mt s cc bin php k thut cn thc hin trong giai on thit k-quy hoch hoc ci to, u t xy dng cng trnh. Tuy nhin, cc bin php k thut p dng trong qu trnh vn hnh li l cc bin php thit thc v hiu qu nht v thng gp nhiu kh khn. Chng hn, ph ti c c im bin ng theo thi gian v tng ln theo khu vc, do dung lng thit b b cng sut phn khng ti cc nt s lun thay i ch khng bt bin. Do vy cn phi xc nh li cc v tr lp t v iu chnh lng cng sut b trn 5 li in khi cn thit. Vi v tr lp t v lng cng sut b ti u, c th gim t 5% n 20% mc tn tht in nng [2]. Vn hnh khng i xng nh hng n t l tn tht nhng vic xc nh v phn tch cc phng n vn hnh tm ra phng n ti u rt kh khn. Tng t nh vy, hin nay ph ti cng nghip tng ln ng k, thnh phn sng hi ca cc ph ti loi ny l nguyn nhn tng tn tht in nng trong cc my bin p. Vic phn tch, nh gi nhm a ra bin php gim cc tc ng ca sng hi i hi nhng phng tin cng ngh nht nh.Mt gii php cng ngh cho php gii quyt c bn cc vn k thut trn c T vn KEMA (M) kin ngh s dng trong cc Cng ty in lc [6, mc 7.5.2]. chnh l ng dng phn mm cng ngh phn tch li in phn phi(www.commandag.com/cyme.) Phn mm phn tch li in phn phi thc hin cc tnh ton ti u ch vn hnh, lp cc phng n x l trong cc trng hp s c, sa thi ph ti. S li in c m t theo pha v phn b trn nn bn s cho php lp k hoch thi im xut hin ph ti, tnh ton cc ch lm vic ca li in phn phi.Ngoi vic gii quyt cc vn k thut nh phn tch phn b cng sut phn khng, xc nh cc thnh phn sng hi, tnh ton ch vn hnh khng i xng, gii php phn mm cn cho php tnh ton lp k hoch gim tn tht trn c s ti u ha ch vn hnh li in. K hoch gim tn tht in nng c th c xy dng t nhiu cc 6 phng n k thut v theo l trnh phn b theo thi gian. K hoch cng c th thay i cp nht ph hp vi s bin ng ca ph ti hoc ngun in cung cp.Vi cc chc nng kt hp nh gi v phn tch tin cy vn hnh ca li in, phn mm l cng c h tr cng tc thit k, qun l vn hnh hin i ang c s dng trn th gii. Cc gii php nh qun l s c (OMS-Outage Management System), ng dng nn bn s (GIS) hay ht hp vi h thng thu thp v qun l d liu (SCADA) u c th ng dng cng vi phn mm.Nng cao nng lc thng qua cc cng c hin i v ng b l mt trong nhng hng i tch cc nhm t c mc tiu v qun l vn hnh li in phn phi. Gim tn tht in nng s vn l mc tiu quan trng ca cc cng ty in lc. Gii php phn mm phn tch li in phn phi l mt cng c mnh ang c khai thc s dng rt hiu qu ti nhiu cng ty in lc trn th gii. Vic tip cn v lm ch cng ngh l bin php hiu qu gip nng cao nng lc ca cc k s thit k v vn hnh li in.

Ti liu tham kho:1. Quy hoch pht trin in lc Quc gia giai on 2006-2015 c xt n nm 2025.Quyt nh ph duyt s 110/2007/Q-TTg ngy 18/7/20072. Benedict E., et al. Losses in Electric Power Systems. Purdue University, Indiana,USA, 1992.73. Quyt nh ca Th tng v chng trnh tit kim in giai on 2006-2010, s 80/2006/Q-TTg ngy 14/4/2006.4. Bn tin ngnh in. Gim tn tht in nng: Nhiu vic cn lm su thng cui nm.8/8/2007.5. Tin tc v S kin Cng nghip Vit Nam. in lc Th c: t l tn tht in nng ch cn 4,15%. 30/1/2007.6. KEMA, Bo co nghin cu kh thi d n GIS cho HT Vit nam. 11/2004.7. Phn mm phn tch li in phn phi, CYMDIST. www.commandag.com/cyme.

Ta : nh gi cht lng ca sng hi n cht lng in nng trong li phn phi: Lun vn thc s

Tc gi: Nguyn c, Ton

T kha: Lun vn thc snh giTc ngSngCht lngin nng

Ngy pht hnh: 9-Feb-2012

Nh xut bn: i hc Bch Khoa H Ni

Series/Report no.: H.200787tr.

Tm tt: Mt trong nhng vn v cht lng in nng hin ang c nhiu nh nghin cu xem xt v nh gi l hin tng xut hin sng hi do mt s cc thit b in sinh ra nh thit b chnh lu, l h quang, ng c... khi gp li in thch hp gy ra hin tng cng hng sng hi lm nhiu lon h thng v nh hng ti in p trong li in phn phi. Vn ny chnh l i tng nghin cu trong phm vi ca lun vn. Lun vn gm 4 chng; Chng 1: Tng quan v cht lng in nng .- Chng 2: Hin tng sng hi trn li phn phi .- Chng 3: Xy dng m hnh nh gi tc ng ca sng hi trong li phn phi .- Chng 4: p dng m hnh nh gi sng hi trong li phn phi ti cc l 471 v 472 E2.5

URI: http://hdl.handle.net/123456789/9066

Xut hin trong b su tp:H thng in (TL tham kho)

I HC THI NGUYN

TRNG H K THUT CNG NGHIP

L LCH KHOA HC

Thng tin c nhn

H v tn:V Vn ThngHc hm, hc v:Thc sin thoi CQ: (0280) 3847123 - in thoi D: 0915176569Email:thangvvhtd@tnut.edu.vnB mn (T)H thng inn v:Khoa in

Lnh vc nghin cu

Th trng in & Qui hoch h thng phn phi,Cng ngh pht in & Ngun in phn tn, Cht lng in nng & tin cy cung cp in, Cu trc ti u h thng phn phi in,n nh & ti u ho trong h thng in

Qu trnh o to

Nm tt nghipBc o toChuyn ngnhH o toXp loiC s o to

2001i hcNng lng inH Chnh quyKhTrng i hc K thut Cng nghip - HTN

2007Thc sThit b mng, nh my inTrng i hc K thut Cng nghip - HTN

Trnh ngoi ng

Ngoi ngVn bng chng ch trong ncVn bng, chng ch quc t

Ting AnhChng ch C

Qu trnh cng tc

Thi gianNi cng tcCng vic m nhim

2001-2004B mn Nng lng in - Khoa in - Trng i hc K thut Cng nghipGing vin

2004-2011B mn H thng in - Khoa in - Trng i hc K thut Cng nghipGing vin

2011 n nayB mn H thng in - Khoa in - Trng i hc K thut Cng nghipPh trng B mn

2005-2007Trng i hc K thut Cng nghipHc Thc s

2008 n nayTrng i hc Bch Khoa H NiNghin cu sinh

Cc bi bo ng trn tp ch khoa hc trong nc

Nm cng bTn bi boTn, s tp ch cng b, trang tp chMc tham giang tc gi

2007n nh tnh v cht lng in p ca H thng in nhn cng sut t cc ngun xaTp ch khoa hc v cng ngh - i hc Thi Nguyn, s 04 Tc gi

2009Xc nh cu trc li in h p thnh ph Thi Nguyn theo quan im nng cao tin cy cung cp inTp ch khoa hc v cng ngh - i hc Thi Nguyn, tp 54, s 06ng tc giNguyn Hng Kng, V Vn Thng, Nguyn Minh Cng

2010Nghin cu nh hng ca lch in p yu cu n la chn v tr v dung lng b ti u khi thit k, vn hnh h thng phn phiTp ch khoa hc v cng ngh - i hc Thi Nguyn, tp 74, s 12 nm 2010.Tc giV Vn Thng, ng Quc Thng, Bch Quc Khnh

2011Tim nng v ng dng ca ngun in phn tn (DG) trong qui hoch h thng phn phiTp ch khoa hc v cng ngh - i hc Thi Nguyn, 10 nm 2011Tc ging Quc Thng, Bch Quc Khnh, Nguyn B Vit

Cc bi bo ng trn tp ch khoa hc quc t

Nm cng bTn bi boTn, s tp ch cng b, trang tp chMc tham giang tc gi

Sch gio trnh, sch chuyn kho

Nm XBTn sch/Gio trnhMc tham giaCc ng tc giNXB

2009Nh My inng tc giNg c Minh, Nguyn c TngNh xut bn Khoa hc v k thut

Bo co ti cc hi tho trong nc

Nm cng bTn bi boTn, s tp ch cng b, trang tp chMc tham giang tc gi

2007Gii php tit kim in nng cho li in tnh Bc Kn bng chng trnh qun l nhu cu in nng (DSM)Tc giNguyn Hng Kng

2009S dng nng lng tit kim v hiu qu trong khu vc cng nghip Bc Giangng tc giNguyn Minh Cng, Nguyn Hng Kng

2010Tim nng v ng dng ca ngun in phn tn trong quy hoch h thng phn phi inTc ging Quc Thng, Bch Quc Khnh

Bo co ti cc hi tho quc t

Nm cng bTn bi boTn, s tp ch cng b, trang tp chMc tham giang tc gi

IEEE DRPT2011, Weihai, Shandong, China, July 2011A New Model Applied to the Planning of Distribution Systems for Competitive Electricity MarketsTc giD. Q. Thong, B. Q. Khanh

IEEE PEDS 2011, Singapore, December 2011A Novel Model to Determine Optimizing Power and Capacity for Energy Storage Systems on Competitive Electricity MarketsTc giD. Q. Thong, B. Q. Khanh

Cc ti, d n, nhim v nghin cu khoa hc cc cp

Nm hon thnhTn chng trnh, tiCp qun l tiLnh vcTrch nhim tham gia

2006Nghin cu cc bin php iu chnh in p trong li in trung p ca cc tnh min ni pha Bc ti cp c sNng lngCh tr

2007Nghin cu nh hng ca t in b dc i vi bo v khong cch trn ng dy siu cao p ti cp c sNng lngCh tr

2008Nghin cu vn hnh ti u li in tnh Bc Giang ti cp c sNng lngCh tr

2010Nghin cu nh hng pht trin th trng in cnh tranh ti Vit Nam ti Sinh vinNng lngCh tr

2010Nghin cu tin cy cung cp in ca h thng cung cp in th thnh ph Thi Nguyn ti Sinh vinNng lngCh tr

2010Nghin cu nh gi nh hng ca cht lng in nng v tin cy cung cp in n qui hoch h thng cung cp in th trong qu trnh ti c cu th trng in ti cp bNng lngCh tr

2011Nghin cu la chn v tr b ti u trong li in phn phi Thi Nguyn, nm ti cp c sNng lngCh tr

NGHIN CU CC PHNG PHP IU CHNH IN P TRONG LI PHN PHI IN P DNG CI THIN CHT LNG IN P TRONG LI PHN PHI IN HNG YN

Li m u

Trong nhng nm gn y, nn kinh t nc ta tip tc tng trng mt cch n tng, i hi nhu cu in phi tng rt nhanh mc 15%, thm ch cao hn. p ng nhu cu trn, nc ta cn phi m rng rt ln h thng in trong thp k ti. Vn cho u t cn c huy ng t tt c cc ngun, gm c vn t c ca EVN v cc khon u t ln t bn ngoi vo cc nh my in c lp. ng thi vi p ng nhu cu pht trin, EVN cng ang tin hnh mt chng trnh ci cch ln, nhm thit lp mt cu trc qun l mi, ti c cu cng ty in lc hin nay ang thng lnh ngnh in v tng bc xy dng mt th trng in cnh tranh. p lc phi p ng nhu cu in tng nhanh v cao, s cp bch phi huy ng cc ngun vn u t cho cc ngun in mi v ng thi bo m nhng cu trc v c cu mi ang c hnh thnh trong qu trnh ci cch v ti c cu p ng c yu cu di hn. S ng thi din ra trn to ra nhng thch thc trong thi im c th ni l kch tnh nht i vi ngnh in VitNam. Tng trng ca nhu cu in Vit Nam hin nay ch yu do gia tng nhu cu in ca ngnh cng nghip v gia tng s dng in cho sinh hot ca ngi dn. Trong giai on 2011-2015, nhu cu in d kin tip tc tng cao mc 11%/nm.Chng trnh ci cch ngnh in di hn ca Vit Nam bt u c trin khai vi Lut in lc c thng qua vo cui nm 2004, Cc iu tit in lc c thnh lp hot ng di s gim st ca B trng B Cng thng v L trnh ci cch c Th tng Chnh ph ph duyt u nm 2006. Nhng n lc ti c cu ngnh in v pht trin mt th trng in cnh tranh l mc tiu trong di hn. iu quan trng l cn bo m rng cc quyt nh v ti c cu v c phn ha mt lot cc n v hin trc thuc EVN v cc tha thun v pht trin cc nh my in c lp phi l nhng bc tin ph hp trong tng lai v nng lc, uy tn, hiu lc ca Cc iu Lun vn tt nghip thc s kho 8 - i hc K thut Cng nghip Thi Nguyn tit in lc cn c thit lp ban hnh khung iu tit bo m kh nng d bo trc cho cc ch u t. l mt nhim v ht sc kh khn ca ngnh in, trong vic nng cao cht lng in nng li in phn phi c nh hng ng k n cht lng in nng v ch tiu kinh t chung ca ton h thng.Vi li in phn phi vic p ng nhng yu cu v cht lng in nng gp khng t kh khn, c bit cc ng dy s dng cc cp in p 6 kV, 10kV, 22kV, ly qua cc trm trung gian 35/6 kV v 35/10kV khng c h thng iu p di ti. S pht trin mnh m ca ph ti in nh hng cht lng in nng li in phn phi th hin d nhn thy l cht lng in p. Xut pht t thc tin tc gi mong mun ng gp mt phn nhng tm ti, nghin cu ca mnh vo vic duy tr ch tiu cht lng in p trong li in phn phi c nhiu cp in p nhng khng c h thng iu p di ti ti cc trm trung gian.Lun vn bao gm 4 chng v hai mc (Mc m u v Mc kt lun), trong :Chng 1 Trnh by l thuyt chung v cht lng in nng, cc ch tiu cht lng in nng ti mt s quc gia v ca Vit Nam, ch trng phn tch ch tiu lch in p, din bin ca in p trong li in phn phi v cc phng php iu chnh lch in p.Chng 2 Gii thiu tng qut v li in tnh Hng Yn, nhng yu cu xut pht t thc t v cht lng in nng.Chng 3 Trnh by c th phng php tnh ton v iu chnh cht lng in p bao gm kim tra lch in p theo cc tiu chun v cht lng in p, tnh ton ch tiu tng qut, iu chnh ti u u phn p c nh ca cc my bin p phn phi, p dng c th trn mt ng dy thc t. Trong chng ny cng trnh by cc cng thc tnh ton cc phn t, phng php tnh ton, s tng ng ca li in c nhiu cp in p, cc ch tnh ton tn tht in p v v d tnh ton. Da trn nhng phn tch v phng php tnh thnh lp nhng gii thut cho php tnh ton nhanh v chnh xc, t hp thnh chng trnh my tnh thun tin trong s dng,kh nng ng dng tnh ton cc s phc tp trong thc t vn hnh ca li in phn phi.Chng 4: Da trn cc s liu thu thp t thc t vn hnh ca li in Hng Yn v chng trnh my tnh lp, p dng tnh ton v xut mt s gii php ci thin cht lng in p li phn phi Hng Yn.Mc Kt lun: nh gi hiu qu vic p dng phng php tnh ton,iu chnh in p trn li in Hng Yn.http://www.google.com.vn/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=15&ved=0CFcQFjAEOAo&url=http%3A%2F%2Fkhodetai.com%2FNghien-cuu-danh-gia-hien-trang-va-de-xuat-mot-so-giai-phap-cai-thien-chat-l%25C6%25A3ong-dien-ap-trong-l%25C6%25A3oi-dien-trung-ap-tinh-Thai-Nguyen_c_65325.html&ei=5kTgT4WaO4WyiQe1l_iiCg&usg=AFQjCNEnEixBgPZkVS8mqMEDv82iiD_a-w&sig2=MjI4uWgbtxeSDzCOY_NCRg

M uTrong nhng nm gn y, do s pht trin mnh m ca nn kinh t, tc cng nghip ho tng nhanh, nhu cu v in nng ngy cng ln i hi ngnh in phi i trc mt bc to c s cho s pht trin ca nn kinh t. Cng vi s pht trin ca nn kinh t quc dn l nhng yu cu ngy cng kht khe ca khch hng v cht lng in nng. Ngnh in phi thc hin nhng k hoch pht trin ngun v li ph hp vi nhu cu ca ph ti v ci to nng cp nhng khu vc hin c, ra nhng bin php vn hnh hp l nng cao cht lng in nng, tng cng sut truyn dn c th p ng ngy cng tt hn nhng i hi ngy cng cao v sn lng cng nh cht lng in nng ng thi tit kim chi ph, gim tn tht v nng cao hiu qu kinh t cung cp v s dng in. l mt nhim v ht sc kh khn, trong vic nng cao cht lng in nng li in phn phi c nh hng ng k n cht lng in nng v ch tiu kinh t chung ca ton h thng. Vi li in phn phi vic p ng nhng yu cu v cht lng in nng gp khng t kh khn, c bit i vi li in 6kV v 10kV xut pht t cc trm trung gian 35/6kV v 35/10kV khng c h thng iu p di ti. S pht trin mnh m ca ph ti in nh hng n cht lng in nng trong li in phn phi biu hin d nhn thy l cht lng in p. Vi ti Nghin cu nh gi hin trng v xut mt s gii php ci thin cht lng in p trong li in trung p tnh Thi Nguyn tc gi mong mun ng gp mt phn nh nhng tm ti, nghin cu ca mnh vo vic m bo ch tiu cht lng in p trong li in phn phi c nhiu cp in p nhng khng c h thng iu p di ti ti cc trm trung gian. Lun vn bao gm 4 chng, trong ti Chng 1 tc gi gii thiu tng qut v hin trng v trin vng pht trin cng vi nhng yu cu xut pht t thc t v cht lng in nng ca li in tnh Thi Nguyn,.LUN VN TT NGHIP THC S KHO 8 HCN THI NGUYNS ha bi Trung tm Hc liu i hc Thi Nguyn http://www.lrc-tnu.edu.vn2Chng 2 trnh by l thuyt chung v cht lng in nng, cc ch tiu cht lng in nng ti mt s quc gia v ca Vit Nam, ch trng phn tch ch tiu lch in p, din bin ca in p trong li in phn phi v cc phng php iu chnh lch in p. Chng 3 tin hnh kho st, nh gi thc trng cht lng in p ti mt s nt chnh trong li in phn phi tnh Thi Nguyn. Trong chng ny lun vn cng nghin cu cc phng php tnh ton nh gi cht lng in p (CLA) ti cc nt ph ti theo ch tiu tng qut (CTTQ) cng vi cc gii php ci thin cht lng in p ph hp vi c im ca li in phn phi tnh Thi Nguyn. Trn c s cc phng php tnh ton tc gi thnh lp cc thut ton tnh ton kim tra CLA ti cc nt ca li in phn phi n gin v trnh by nhng nt c bn ca chng trnh phn mm Conus s c s dng ti Chng 4 kho st cc s li in phn phi phc tp trong thc t vn hnh. Chng 4 nghin cu p dng chng trnh Conus tnh ton kho st CLA v xut mt s gii php ci thin CLA trong li in phn phi tnh Thi Nguyn. Tc gi chn thnh gi li cm n ti TS Nguyn Mnh Hin v cc thy c ca B mn H thng in trng i hc Bch khoa H Ni tn tnh hng dn, ch bo gip tc gi hon thnh lun vn. Cm n cc ng nghip gip trong cng vic tc gi c thi gian hc tp, thu thp s liu vit lun vn. Do thi gian c hn v kin thc cn nhiu hn ch nn lun vn chc chn cn nhiu khim khuyt. Tc gi chn thnh mong mun nhn c s ch bo gp ca thy c v cc ng nghip cng bn c quan tm n ni dung lun vn ny.Trong nhng nm gn y, do s pht trin mnh m ca nn kinh t, tc cng nghip ho tng nhanh, nhu cu v in nng ngy cng ln i hi ngnh in phi i trc mt bc to c s cho s pht trin ca nn kinh t. Cng vi s pht trin ca nn kinh t quc dn l nhng yu cu ngy cng kht khe ca khch hng v cht lng in nng. Ngnh in phi thc hin nhng k hoch pht trin ngun v li ph hp vi nhu cu ca ph ti v ci to nng cp nhng khu vc hin c, ra nhng bin php vn hnh hp l nng cao cht lng in nng, tng cng sut truyn dn c th p ng ngy cng tt hn nhng i hi ngy cng cao v sn lng cng nh cht lng in nng ng thi tit kim chi ph, gim tn tht v nng cao hiu qu kinh t cung cp v s dng in. l mt nhim v ht sc kh khn, trong vic nng cao cht lng in nng li in phn phi c nh hng ng k n cht lng in nng v ch tiu kinh t chung ca ton h thng.Vi li in phn ph i vic p ng nhng yu cu v cht lng in nng gp khng t kh khn, c bit i vi li in 6kV v 10kV xut pht t cc trm trung gian 35/6kV v 35/10kV khng c h thng iu p di ti. S pht trin mnh m ca ph ti in nh hng n cht lng in nng trong li in phn phi biu hin d nhn thy l cht lng in p.Vi ti Nghin cu nh gi hin trng v xut mt s gii php ci thin cht lng in p trong li in trung p tnh Thi Nguyn tc gi mong mun ng gp mt phn nh nhng tm ti, nghin cu ca mnh vo vic m bo ch tiu cht lng in p trong li in phn phi c nhiu cp in p nhng khng c h thng iu p di ti ti cc trm trung gian.Lun vn bao gm 4 chng, trong ti Chng 1 tc gi gii thiutng qut v hin trng v trin vng pht trin cng vi nhng yu cu xut pht t thc t v cht lng in nng ca li in tnh Thi Nguyn,.Chng 2 trnh by l thuyt chung v cht lng in nng, cc ch tiu cht lng in nng ti mt s quc gia v ca Vit Nam, ch trng phn tch ch tiu lch in p, din bin ca in p trong li in phn ph i v cc phng php iu chnh lch in p.Chng 3 tin hnh kho st, nh gi thc trng cht lng in p ti mt s nt chnh trong li in phn phi tnh Thi Nguyn. Trong chng ny lun vn cng nghin cu cc phng php tnh ton nh gi cht lng in p (CLA) ti cc nt ph ti theo ch tiu tng qut (CTTQ) cng vi cc gii php ci thin cht lng in p ph hp vi c im ca li in phn phi tnh Thi Nguyn.Trn c s cc phng php tnh ton tc gi thnh lp cc thut ton tnh ton kim tra CLA ti cc nt ca li in phn phi n gin v trnh by nhng nt c bn ca chng trnh phn mm Conus s c s dng ti Chng 4 kho st cc s li in phn phi phc tp trong thc t vn hnh.Chng 4 nghin cu p dng chng trnh Conus tnh ton kho st CLA v xut mt s gii php ci thin CLA tro ng li in phn phi tnh Thi Nguyn.Tc gi chn thnh gi li cm n ti TS Nguyn Mnh Hin v cc thy c ca B mn H thng in trng i hc Bch khoa H Ni tn tnh hng dn, ch bo gip tc gi hon thnh lun vn. Cm n cc ng nghip gip trong cng vic tc gi c thi gian hc tp, thu thp s liu vit lun vn.Do thi gian c hn v kin thc cn nhiu hn ch nn lun vn chc chn cn nhiu khim khuyt. Tc gi chn thnh mong mun nhn c s ch bo gp ca thy c v cc ng nghip cng bn c quan tm n ni dung lun vn ny.

c thm Lun vn thc s: Nghin cu nh gi hin trng v xut mt s gii php ci thin cht lng in p trong li in trung p tnh Thi Nguyn

Cc gii php ngn chn s c my bin p 110kV

10:53 |19/05/2012

NangluongVietnam - My bin p lc l thit b quan trng nht trong trm bin p 110kV. Do , cc s c MBA 110kV xy ra nh hng rt ln n vic m bo cung cp in an ton, lin tc cho khch hng. Trong thi gian t nm 2003 n 4/2012, trn a bn qun l ca Tng cng ty in lc min Nam xy ra 28 s c h hng MBA, trong : 14 MBA 63MVA (50 %), 10 MBA 40MVA (35,7 %), 03 MBA 25MVA (10,7 %), 01 MBA 16MVA (3,6 %).

Tng cng ty in lc min Nam nghin cu, phn tch nguyn nhn v trin khai thc hin cc gii php ngn chn s c my bin p 110kV nh sau:Nng cao cht lng MBA, m bo kh nng chu dng ngn mch nh cam kt: a yu cu bt buc th nghim in hnh hng mc dng chu ng ngn mch trong cc h s mi thu mua sm MBA 110kV hoc tng thi hn bo hnh trong trng hp h hng do s c ngn mch ngoi pht tuyn 22kV. L trnh thc hin i vi yu cu th nghim in hnh trong nm 2013.Gii php gim thiu s c ngoi li in 22kV:1. S c li in 22kV ca khch hng: Cc Cng ty in lc (CTL) phi ng k k hoch chi tit, yu cu khch hng thc hin nghim TT32 v cng tc th nghim nh k, bo tr, bo dng li in hng nm; xem xt cc bin bn th nghim do khch hng cung cp c kin ngh cn thit (nu c). T nm 2012, Tng cng ty s ch tnh loi tr s c khch hng cho n v theo khi lng ng k ph hp. Ngoi ra, cc CTL phi kim sot cht ch hn na trong cng tc ph duyt thit k, nghim thu ng in cc cng trnh li in khch hng.2. Cc CTL ch trng tng cng cht lng trong cng tc th nghim nh k, kim tra li in, x l sau s c hn ch ti a s c pht tuyn 22kV. Tuyt i khng thao tc ng li bng tay cc my ct pht tuyn khi cha kim tra li in nhm m bo loi tr s c.ng thi, trin khai thc hin cc gii php ngn chn s c li in trung p, nht l cc on u pht tuyn ca trm 110kV, tuyn trung th nhiu mch hn ch s c ngn mch ngoi li 22kV dn v TBA 110kV. Ngoi ra, cn ch trng cng tc o to, bi hun cho cn b, cng nhn lm cng tc qun l k thut, qun l vn hnh (QLVH) li in.3. Cng ty Li in cao th min Nam (LCTMN) v cc CTL tip tc theo di v phn tch nh gi hiu qu vic trin khai cc gii php v ci t rle ca cc pht tuyn 22kV nh: kha chc nng 79, ct 0s khi dng ngn mch >9kA,(Cng ty LCTMN trin khai thc hin cho 23 trm), t c bo co, xut phng n p dng thng nht).4. gim s c, cc CTL cn tng cng qun l v giao ch tiu sut s c cho cc in lc; cn lu vic tnh c s ln tc ng ca Recloser. Tng cng ty s thc hin kim tra kt hp qua cc ln kim tra cng tc qun l k thut, tn tht in nng.5. Cht lng vt t, thit b (VTTB) li in: Cc CTL phi thng k, nh gi cht lng VTTB vn hnh trn li in nhm loi b cc VTTB c cht lng km trong cng tc mua sm (h hng hng lot sau thi gian ngn s dng). i vi cc trng hp VTTB c cht lng km, yu cu cc n v bo co kp thi thng bo rng ri v ph bin khng s dng trong ton Tng cng ty.ng dng lp t thit b hn ch dng ngn mch pha 22kV nh: lp thit b hn ch dng ngn mch (FCL-FAULT CURRENT LIMITER) ti trc l MC tng 22kV, hoc ti phn on TC22kV; hoc lp khng in; lp thit b t ng hn ch dng ngn mch kiu my bin p; lp in tr ti trung tnh pha 22kV ca MBA 110kV. Cng ty LCTMN tnh ton kinh t k thut nhm la chn gii php ti u thc hin; trin khai th im ti mt s TBA 110kV ti Bnh Dng trong nm 2012.Cng tc qun l vn hnh TBA 110kV:1. T chc bin son v ban hnh cc quy nh trong cng tc qun l vn hnh: Quy nh ni dung cng tc kim tra sau s c i vi MBA; Quy nh cng tc th nghim nh k li in 110kV; Quy nh cng tc ly mu du v phn tch kh ha tan trong du; Quy nh cng tc thi cng, kim tra, gim st, th nghim i vi cp ngm trung p.2.Tng cng cht lng cng tc QLVH nhm hn ch cc s c t thit b ca TBA gy nh hng n tui th MBA, c th gm s c ca: TU, TI 22kV, s c phng u cp ngm, s c do rn/chut b3. Phn tch, chn on nguy c s c MBA thng qua cc bin php: phn tch phng in cc b, phn tch hm lng kh ha tan,t ra cc bin php theo di, x l. thc hin c cng tc ny, cn trang b trong nm 2012 cc thit b sau: Thit b o phng in cc b, thit b o trc tuyn (online) hm lng kh ha tan trong du MBA.4. Thc hin theo di v tnh ton dng in ngn mch tch ly t cc s c pht tuyn 22kV ca MBA 110kV: {(kA)2}. T i chiu kt qu tnh ton ca cc MBA ang vn hnh vi cc MBA b s c trong qu kh kp thi c cc bin php theo di, kim tra, x l kp thi. Ngoi ra, nh k 2 tun/ln, cc CTL cn cung cp cho EVNSPC cc gi tr dng ngn mch s c t cc pht tuyn 22kV do Recloser ghi nhn c cp nht b sung vo cc tnh ton dng ngn mch tch ly, do s c ghi nhn t cc rle v MC pht tuyn khng phn nh y s c ngoi li trung th.5. EVNSPC v Ban K thut sn xut phi hp ghi nhn cc h hng thc t ca MBA khi m my sa cha ti nh sn xut phn tch, rt kinh nghim, lm c s chn on nguyn nhn h hng MBA.6. Mua sm b sung MBA 110kV d phng x l s c MBA hoc thay th nhm cch ly MBA ra khi vn hnh kim tra khc phc khim khuyt (i vi cc MBA c hin tng phng in, qu nhit mi ni,). phc v cng tc ny, cn c sn 02 MBA 40MVA & 02 MBA 63MVA d phng.Hin nay, EVNSPC v cc cc n v ang khn trng trin khai thc hin ng b cc gii php nhm gim thiu s c h hng MBA lc ca cc trm 110kV.(Ban KTSX-EVNSPC)H thng in thng minh Smart Grid

09:06 |10/04/2012

NangluongVietnam - H thng in l h thng ln, thi gian thc, chu nh hng ca cc yu t kh hu thi tit, kinh t x hi v l ngun ng lc cho s pht trin ca nhn loi.

Do s pht trin mnh m ca k thut o lng, iu khin thng minh v h thng truyn thng hin i da trn nn tng k thut s tch hp tt c cc lnh vc hot ng trong h thng in to nn H thng in thng minh (Smart Grid) vi cc tnh nng ni tri nhm mc tiu:

- Tho mn yu cu ngy cng tng ca thc t.

- Nng cao tin cy, an ton v m bo cung cp in.

- Hiu qu cao trong sn xut, truyn ti, phn phi, tit kim in.

- S dng rng ri cc ngun nng lng ti to.

- Gim thiu cc tc ng nh hng ti mi trng.

Bi vit sau y gii thiu nhng c im c bn ca h thng ny.

Lch s hnh thnh H thng in thng minhH thng in xoay chiu hnh thnh v pht trin t nm 1896 da trn thit k ca Nikola Tesla vo nm 1888. Nhiu quy trnh cng ngh trong h thng in ra i cch y 120 nm n nay vn cn c s dng. H thng in bao gm cc ngun in, cc ng dy truyn ti v phn phi n tng h tiu th bao ph ton b lnh th quc gia v kt ni a quc gia. Yu cu s dng in tng lin tc trong khi cc ngun nng lng s cp truyn thng b dn cn kit. H thng in ang ng trc thch thc nhiu mt, nhiu tnh hung xung t xut hin i hi in nng tng t bin trong nhng thi im c bit (ngy l tt, kh hu thi tit...) khin nhiu h thng truyn ti v phn phi lm vic gn gii hn cc i, pht sinh nguy c r li.

Qua hn mt th k tn ti v pht trin, cng ngh trong h thng in tri qua cc giai on:

- T giai on khi u cho n nhng nm 70 ca th k trc, trong h thng cng ngh in c hon ton chim u th. K thut o lng, iu khin v bo v l k thut tng t da trn cc dng c o, rle v cc phn t chp hnh in c.

- T nhng nm 80 ca th k trc vi s pht trin mnh m ca cc b vi x l, xu hng s ho trong o lng, iu khin v bo v h thng in dn thng th. Vic hin i ho cc trm truyn ti v phn phi u tin a trn vic o lng, hin th v iu khin in t xut hin t nhng nm 1980.

- T nm 2000 vi s pht trin mnh m ca k thut vi x l, h thng truyn thng k thut s da trn truyn dn bng cp quang, truyn thng qua mng Internet v h thng nh v ton cu GPS thm nhp vo h thng in.

Thut ng h thng in thng minh (Smart Grid) xut hin u tin vo nm 2005, khi bi bo Hng ti h thng in thng minh ca S. Massoud Amin v Bruce F. Wollenber xut hin trn IEEE P&E (tp 3, N0 5, trang 34-41). Thc ra thut ng ny xut hin sm hn, vo nm 1998, khi nhiu nh ngha v li in thng minh vi mt s chc nng v nh hng s dng c cng b. Yu t chung nht ca h thng in thng minh l vic tham gia ca k thut vi x l v truyn thng k thut s vo cc hot ng iu vn hnh v qun l h thng in. Cc cng ty in lc tin hnh thay i nng cp cu trc h tng. Trc ht l cc trm phn phi k thut s hon ton t ng. Cc dng c o thng minh b sung h thng truyn thng cho php hin th cc thng s trng thi ca h thng in ti tng v tr v tng thi im. Vic qun l nhu cu ph ti tr nn linh hot hn. Cc thit b in cng nghip v dn dng nh my iu ho nhit , l si... c th c t ng iu chnh ch lm vic trnh gi cao im. T nm 2000, ti Italia d n qun l cc thit b in t xa Telegestore l h thng ln u tin qun l 27 triu h s dng cng t thng minh kt ni qua ng dy ti in bng thp. D n tr gi 2,1 t r ny hng nm c th tit kim 500 triu r.

Gn y cc d n s dng truyn thng qua ng dy ti in bng rng hoc mng khng dy cho php kt ni trong iu kin tin cy hn cho h thng cp in, ga v nc. Nm 2003 ti Austin, Texas xy dng mng thng minh nhm thay th 1/3 cng t thng minh kt ni qua li qun l 200.000 thit b (cng t, cm bin nhit v cc cm bin) v d kin qun l ti 500.000 thit b thi gian thc nm 2009 phc v khong 1 triu h v 43.000 doanh nghip. H thng thng minh Ontario - Canada n nm 2010 phc v 1,3 triu khch hng.

T nm 1990 c quan qun l in ca Bonneville Hoa K m rng nghin cu li thng minh trong tch hp cc cm bin c kh nng phn tch nhanh cc hin tng bt thng v cht lng in trn din rng.

Ti Hoa K, quan nim v h thng in thng minh c xc nh theo yu cu hin i ho h thng truyn ti v phn phi in nng cao tin cy v an ton ca cu trc h tng ngnh in nhm p ng yu cu pht trin trong tng lai theo cc c trng ca h thng in thng minh.

Nm 2009, Tng thng Barack Obama yu cu Quc hi M thng qua khng chm tr d lut tng gp i nng lng ti to v xy dng h thng in thng minh trong vng 3 nm ti.

(nh minh ha)H thng in thng minh l g?V nguyn tc h thng in thng minh l s nng cp v cp nht h thng in hin c bng cng ngh o lng, iu khin v bo v k thut s vi h thng truyn thng hin i nhm p ng nhu cu v tin cy, an ton, cht lng in, tit kim nng lng.

Tuy nhin, chc nng c bn ca h thng in thng minh khng phi l vic tch hp cc mng n l v cc cng ty pht in vi trnh cng ngh khc nhau. N tng cng kt ni, nng cao trnh t ng ho v iu phi cc nh cung cp, cc h tiu th v li in nhm thc hin nhim v truyn ti v phn phi in trn phm vi rng cng nh cc b. H thng in thng minh phi c kh nng t duy tr hot ng trc cc thay i bt thng.

Li truyn ti c ly xa v trung bnh ni chung c kt ni bng h thng siu cao p 500 kV, 220 kV, li a phng qua ng dy 110 kV v thp hn. K thut s cho php trn cng mt thit b phn cng c th thc hin nhiu chc nng iu khin khc nhau, vn ch cn thay i phn mm.

Cc k thut iu khin thng minh da trn c s tr tu nhn to c pht trin em li cho h thng in cc tnh nng ni tri. Cc u im c bn ca h thng in thng minh l:

- D dng kt ni v m bo vn hnh cho tt c cc ngun in vi cc kch c v cng ngh khc nhau, k c cc ngun in phn tn nh cc ngun nng lng ti to, lm cho ton b h thng vn hnh hiu qu hn.

- Cho php cc h dng in ch ng tham gia vo vic vn hnh ti u h thng, lm cho th trng in pht trin.

- Cung cp cho cc h dng in y thng tin v cc la chn ngun cung cp.

- Gim thch thc v mi trng ca h thng in mt cch ng k.

- Nng cao tin cy, cht lng v an ton ca h thng cung cp in.

- Duy tr v ci tin cc dch v hin hnh mt cch hiu qu.

Cc bc cn thc hin nhm tin ti mt h thng in thng minh tin ti mt h thng in thng minh cn hin i ho c li truyn ti v phn phi theo hng tng cng h thng truyn thng, iu khin k thut s. Mt khc cc thit b in nh ng c, dng c chiu sng... cng phi l thit b c hiu sut cao, thng minh cho php thc hin cc chin lc vn hnh linh hot theo s thay i ca iu kin thc t.

- Tng cng s dng cng ngh thng tin v iu khin k thut s nng cao tin cy, an ton v hiu qu ca h thng in.

- Vn hnh ti u ton h thng.

- Tch hp cc ngun phn tn, k c cc ngun nng lng ti to.

- Trin khai cng ngh thng minh (cng ngh thi gian thc, t ng ho, tng tc...) nhm ti u ho vn hnh cc thit b. Vic tch hp cc thit b thng minh cho php s dng thng tin thi gian thc ly t cc cm bin v h thng iu khin t ng cho php pht hin v x l mi bt thng ca h thng.

Cng t thng minh nhiu biu gi khuyn khch khch hng s dng in nng mt cch tit kim. N lm thay i hnh vi ca cc h tiu th trong vic s dng nng lng. Cc cm bin thng minh cho php t ng iu khin cc thit b nh iu ho nhit , l si, h thng nh sng mt cch hiu qu v tit kim nng lng.

- Trin khai v tch hp cng ngh d tr in, np in cho cc t in, san bng th ph ti, d tr nhit v iu ho khng kh.

- D bo ph ti di hn.

- Trin khai tiu chun ho thit b v giao thc kt ni h thng thng tin vi h thng in.

Cng ngh ca h thng in thng minh- V truyn thng ni chung cc cng ngh ng dng trong h thng in thng minh c cp nht, p ng tt cho vic vn hnh h thng in thng minh, trong nhn mnh h thng thng tin tch hp. Tuy nhin mt s h thng c pht trin theo yu cu s dng gia tng nhng khng hon ton tch hp.

Cc d liu c thu thp qua modem hn l kt ni trc tip vi li. Cc khu vc c ci tin bao gm: t ng ho hon cc trm, t ng ho phn tn, h thng gim st v thu thp d liu SCADA, h thng qun l ph ti, mng khng dy, truyn thng qua ng dy ti in, mng cp quang... Cc h thng thng tin ny cho php iu khin thi gian thc, thng tin v d liu trao i nhm ti u ho tin cy, nh gi vic s dng v an ton.

- Cm bin v o lng l ct li ca vic nh gi tnh trng lm vic ca h thng nh hin tng tc nghn v s n nh ca h thng, ch bo trng thi, a ra cc chin lc iu khin. Cc cng ngh gm c dng c thng minh da trn b vi x l, rle bo v k thut s, thit b c d liu, h thng hin th bng gi trc tuyn, ngi s dng c th c nhiu la chn trnh gi cao im.

- Cc cm bin thng minh tc cao PMU phn b trong mng c th c s dng ch th cht lng in v mt s p ng mt cch t ng. Cc cm bin ny c th a ra dng sng dng in. T nm 1980, xung nhp ng h t h thng nh v ton cu GPS c th c s dng o chnh xc thi gian trong li, c kh nng qun l h thng in p ng cc iu kin tc ng nhanh.

- Cc linh kin tin tin nh cc b in t cng sut, b lu tr in v cc linh kin chn on lm thay i cc kh nng v c tnh ca h thng. H thng in xoay chiu linh hot, truyn ti in mt chiu cao p, h thng ngun phn tn, cp siu dn...

- iu khin nng cao: T ng ho h thng in c kh nng d on nhanh chng v chnh xc cc gii php cho li in. Ba cng ngh iu khin nng cao c s dng l tc t thng minh phn tn, cc cng c phn tch (thut ton phn mm v my tnh tc cao), cc ng dng (SCADA, t ng ho trm, p ng ti) v tr tu nhn to.

Cc tiu chun cho h thng in thng minh- IEC TC 75 to nn h tiu chun quc t c th s dng nh mt phn h thng in thng minh. Cc tiu chun ny bao gm IEC 1850 kin trc trm t ng ho, IEC 61970/91968 m hnh thng tin chung cung cp thng tin s dng chuyn i d liu trong thng tin.

- MultiSpeak to nn quy chun nn tng chc nng phn phi ca h thng thng tin.

- IEEE to nn tiu chun C37.118 dng cho cc pha ng b.

- NIST gm ITU-TGhn mt tiu chun nhn dng cc lp h thng in thng minh truyn thng tc cao qua ng dy ti in, ng in thoi v cp ng trc.

Nhiu quan nim khc nhau c s dng m hnh ho h thng in thng minh. Ni chung cc nghin cu tp trung vo h thng phc tp trong bi cnh iu khin ti u, nh hng mi trng, yu t con ngi, h thng ng, l thuyt thng tin m my...

PGS. L Vn Doanh, Ks. Nguyn Th Nguyt(Ngun: automation.net.vn)Quyt nh 195/Q-TTg nm 2012 ph duyt Quy hoch tng th pht trin kinh t - x hi tnh Vnh Long n nm 2020 do Th tng Chnh ph ban hnh16/02/2012 12:00 SA | 557 Lt xem |

TH TNG CHNH PH-------CNG HA X HI CH NGHA VIT NAMc lp - T do - Hnh phc---------------

S: 195/Q-TTgH Ni, ngy 16 thng 02 nm 2012

QUYT NHPH DUYT QUY HOCH TNG TH PHT TRIN KINH T - X HI TNH VNH LONG N NM 2020

TH TNG CHNH PHCn c Lut T chc Chnh phngy 25 thng 12 nm 2001;Cn c Ngh nh s92/2006/N-CP ngy 07 thng 09 nm 2006 ca Chnh ph v lp, ph duyt v qun l quy hoch tng th pht trin kinh t - x hi v Ngh nh s 04/2008/N-CP ngy 11 thng 01 nm 2008 ca Chnh ph v sa i, b sung mt s iu ca Ngh nh s 92/2006/N-CP ngy 07 thng 09 nm 2006 ca Chnh ph;Xt ngh ca y ban nhn dn tnh Vnh Long,QUYT NH:iu 1. Ph duyt Quy hoch tng th pht trin kinh t - x hi tnh Vnh Long n nm 2020 vi nhng ni dung ch yu sau:

I. QUAN IM PHT TRIN1. Quy hoch pht trin kinh t -x hi tnh Vnh Long n nm 2020 phi ph hp vi Chin lc pht trin kinh t - x hi ca c nc, Quy hoch tng th pht trin kinh t - x hi vngng bng sng Cu Long; bo m tnh ng b, thng nht vi quy hoch cc ngnh, lnh vc.

2. Pht huy ti a nhng tim nng, th mnh ca tnh; tng cng hi nhp kinh t quc t; tng bc cng c ni lc, tng dn t l tch ly cho nn kinh t, gim thiu thch thc tin ti hnh thnh mt c cu kinh t tin tin, m, hi ha cn i v c sc cnh tranh trn th trng trong v ngoi nc.

3. Pht trin kinh t gn vi pht trin y t, vn ha, gio dc, o to, thc hin tin b, cng bng x hi, bo v mi trng, nng cao cht lng cuc sng nhn dn, gim dn t l h ngho; tp trung o to ngun nhn lc c cht lng cao p ng nhu cu th trng, gn pht trin ngun nhn lc vi pht trin v ng dng khoa hc, cng ngh.

4. Kt hp cht ch gia pht trin kinh t - x hi vi xy dng h thng chnh tr vng mnh, cng c quc phng, an ninh, bo m trt t an ton x hi.

II. MC TIU PHT TRIN1. Mc tiu tng qut

Xy dng tnh Vnh Long thnh vng th sinh thi, xanh, sch, p, pht trin hi ha gia th v nng thn, nng cao i sng vt cht v tinh thn ca nhn dn; y mnh pht trin cng nghip v dch v theo hng cng ngh v cht lng cao; tng bc hnh thnh nn kinh t tri thc da trn ngun nhn lc c cht lng; tng cng quc phng, an ninh, gi vng n nh chnh tr v trt t an ton x hi.

Lin kt vi Cn Th, pht trin thnh vng kinh t ng lc, trung tm kinh t, o to, vn ha v khoa hc kthut ca vng ng bng sng Cu Long, gp phn cng c nc thc hin thnh cng mc tiu xy dng nc ta c bn tr thnh nc cng nghip vo nm 2020.

2. Mc tiu c th

a) V kinh t

- Tc tng trng kinh t bnh qun t 13%/nm giai on 2011 - 2015 v 14,5%/nm giai on 2016 - 2020; thu nhp bnh qun u ngi t trn 1.900 USD vo nm 2015 v t trn 4.000 USD vo nm 2020.

- Chuyn dch c cu kinh t theo hng tng dn t trng cc ngnh cng nghip, dch v; n nm 2015 c cu cc ngnh nng - lm - thy sn, cng nghip - xy dng, dch v trong GDP t 36% -26% - 38%; n nm 2020 tng ng l 23% - 32% - 45%.

- Phn u kim ngch xut khu n nm 2015 t 460 triu USD, nm 2020 t trn 1.000 triu USD; thu ngn sch bnh qun giai on 2011 - 2015 t 20%/nm v 22% - 23%/nm giai on 2016 -2020; t l huy ng vn u t pht trin ton x hi so vi GDP l 33 - 34%.

b) V x hi

- T l tng dn s t nhin nnh mc 1% - 1,1%/nm giai on 2011 - 2015 v 0,8% - 0,9%/nm giai on 2016- 2020; gim t l h ngho bnh qun hng nm (theo tiu chun mi) t 1,5% -2%; phn u n nm 2015, s x t tiu ch nng thn mi l 22 x v nm 2020 t 50% s x trong tnh.

- Phn u to vic lm mi cho khong 25.000 - 27.000 lao ng/nm giai on 2011 - 2015 v khong 18.000 -20.000 lao ng/nm giai on 2016 - 2020; t l lao ng qua o to nm 2015 l 55% v nm 2020 l 65 - 66%; gim t l lao ng trong nng nghip n nm 2015 cn khong 52% v nm 2020 cn 28%.

- n nm 2015, s hc sinh n trng trong tui mu gio t 80%, tiu hc t 100%, trung hc c s t trn 98%, trung hc ph thng t 63%; ph cp mu gio cho tr 5 tui; n nm 2020, cc t l trn tng ng l mu gio t 90%, trung hc c s t 100%, trung hc ph thng t 85%, hon thnh ph cp gio dc bc trung hc. Strng cc cp t chun quc gia l 40% vo nm 2015 v 50% - 60% vo nm 2020.

- n nm 2015, t l suy dinh dng tr em di 5 tui gim xung di 15% v nm 2020 di 8%.

c) V mi trng

- Phn u n nm 2015, 100% ngi dn th, 60% ngi dn nng thn c s dng nc sch; t l thu gom cht thi rn sinh hot t 90% khu vc th v 60% khu vc nng thn.

- Phn u n nm 2020, 90% ngi dn nng thn c s dng nc sch; 100% cc trng hc c cung cp nc sinh hot; 100% nc thi, cht thi rn t cc c s y t c thu gom v xl; 100% cc khu, cm cng nghip c h thng x l nc thi.

d) V quc phng an ninh

Bo m quc phng, an ninh, gi vngn nh chnh tr, kim ch s gia tng, tin ti gim dn cc loi ti phm v t nn x hi.

III. NH HNG PHT TRIN CC NGNH, LNH VC1. V nng nghip, lm nghip, thy sn

Pht trin ton din theo hng sn xut hng ha cht lng cao, gn vi cng nghip ch bin su; m bo mi trng sinh thi. Phn u tc tng trng bnh qun ngnh nng nghip, lm nghip, thy sn t trn 5%/nm giai on 2011- 2015 v t 4% - 4,5%/nm giaion 2016 - 2020.

- Nng nghip: Xc nh cy la vn l cy ch lc, kt hp trng cc loi cy hoa mu nh rau, bp, khoai lang,u nnh; nghin cu chuyn i c cu cy trng ph hp vi iu kin t ai v nhu cu th trng tiu th nhm tng gi tr sn xut trn mt n v din tch; c th kt hp lun canh la - hoa mu, la - thy sn; n nh din tcht la khong 54.000 ha vo nm 2015 v khong 51.000 ha vo nm 2020; ng dng khoa hc, cng ngh nhm gim gi thnh sn xut, tng nng sut, cht lng sn phm; tin hnh c gii ha ng b, ch trng khu ch bin sau thu hoch. Pht trin cc loi cy n qu c thng hiu nh bi Nm Roi, xoi Ct Lc, cam Snh

Hnh thnh, xy dng cc vng chn nui tp trung t tiu chun v sinh, an ton vi dch bnh; pht trin phng thc chn nui bn cng nghip v cng nghip, chim t 55% - 60% ton Tnh; tchc ng b t khu chn nui, ch bin n bo qun phn phi tiu dng, m bo cht lng v an ton v sinh.

Thy sn: Pht trin theo hng hnh thnh cc m hnh lun canh hiu qu cao hn nh tm -la, la - c cc vng c iu kin; chuyn i c cu ging nui cho ph hp; pht trin m hnh tri tm ging sinh sn nhn to trn sng nhm cung cp tm ging cho cc a phng trong Vng; n nm 2020, n nh din tch mt nc nui trng thy sn khong 3.400 ha.

2. Pht trin ngnh cng nghip

- Pht trin cng nghip theo hng to iu kin cho cc ngnh kinh t c li th pht trin n nh v bn vng; ch trng pht trin tiu th cng nghip, th cng m ngh gn vi pht trin du lch; c bit quan tm n vic ng dng cng ngh tin tin, to ra cc sn phm c cht lng cao, c kh nng cnh tranh trn th trng trong v ngoi nc; ng thi khng gy nh hng n mi trng sinh thi. Phn u tng trng bnh qun giai on 2011 - 2015 t 24%/nm, giai on 2016 - 2020t 19,5%/nm.

- Tp trung pht trin cc ngnh cng nghip ch o sau: Cng nghip thc phm v ung (ch bin cc loi nng sn thc phm, rau qu, nc gii kht cc loi); c kh nng nghip (my nng nghip, xe ci tin, my bm cc loi); cng nghip ha cht, cng nghip dc ang l nhng ngnh c th mnh hin nay ca Vnh Long; cng nghip nhthu ht nhiu lao ng (dt, may, giy dp, da, gi da; sn xut hng tiu dng).

i vi cng nghip ch bin thc phm v ung: u t cng ngh hin i, ng b t khu thu hoch, bo qun, ch bin n phn phi tiu th nhm to ra cc sn phm c cht lng cao; c bit ch n khu bo qun sn phm sau thu hoch; ku gi u t,xy dng cc c s, nh my ch bin tri cy, lng thc, thc phm.

Pht trin cng nghip ha cht, dc phm v thit b y t theo hng to cc sn phm cnh tranh p ng nhu cu xut khu v tiu dng trong nc, dn thay th hng nhp khu; khai thc, sdng ht cng sut nh my sn xut vin nang trong phc v xut khu m bo t 50%; m rng sn xut phn bn

Ch trng u t chiu su, i mi cng ngh, s dng c hiu qu ngun nguyn liu khai thc v sn xut vt liu xy dng, gm s m ngh theo hng sn xut cc loi vt liu xy dng khng nung, tn dng cc ngun ph thi ca cc ngnh cng nghip khc (xthan, x st v.v), tit kim t nng nghip lm nguyn liu v bi cha, gp phn thc hin mc tiu thay th 20- 25% gch t st nung vo nm 2015, 30 -40% vo nm 2020, tin ti xa b hon ton cc c s sn xut gch t st nung bng l th cng.

Cng nghip in: Phn u tng trng bnh qun t 15,4%/nm thi k 2011 - 2015 v 14,9%/nm thi k 2016 -2020.

- Tp trung pht trin nhanh, hiu qu cc khu, cm cng nghip c ph duyt, gn lin vi xy dng cc cng trnh x l cht thi, trng cy xanh, bo m mi trng xanh, sch, p; ng thi pht trin ng b cc dch v, m bo iu kin sinh hot cho ngi laong nht l nh cho cng nhn.

3. Pht trin thng mi, dch v

Phn u tng trng bnh qun t 13,5%/nm giai on 2011 - 2015 v 15,0%/nm giai on 2016 - 2020. Pht trin ngnh dch v theo hng a dng ha, u tin pht trin cc ngnh dch v c gi tr gia tng cao, hnh thnh cc ngnh dch v mi.

Pht trin mng li phn phi hng ha bn l, phn u t l hng ha bn l qua h thng phn phi hin i t khong 15% vo nm 2015 v t 20% vo nm 2020; xy dng h thng ch theo quy hoch, ch trng pht trin h thng ch u mi, ch nng thn; khuyn khch cc thnh phn kinh t tham gia xy dng ch v trung tm thng mi; m rng th trng xut khu, trong 5 - 7 nm ti nhng mt xut khu ch yu l nng sn, thy sn qua ch bin, dt may v mt s hng th cng m ngh. T 2015n 2020 b sung thm cc mt hng ha cht, in, in t v cc mt hng tiu dng khc.

- a dng ha cc sn phm du lch, thc hin lin kt pht trin du lch vi cc a phng trong Vng, c bit vi thnh ph Cn Th; nng cao cht lng dch v, c phn u thu ht lng khch du lch t 1,3 triu lt/nm vo nm 2015 v t 2,6 triu lt/nm vo nm 2020; pht trin cc loi hnh du lch tham quan ngh dng, du lch sinh thi, tham quan cc di tch lch s

- Tp trung pht trin ng b cc dch v ti chnh, bo him, ngn hng, vn ti, dch v o to, t vn, bu chnh vin thng, cng ngh thng tin l nhng ngnh dch v c gi tr gia tng cao v c tc dng thc y cc ngnh sn xut, dch v khc pht trin.

4. Cc lnh vc x hi

a) Gio dc - o to

- Pht trin gio dc - o to phi t trong mi quan h pht trin tng th kinh t - x hi ca Tnh ng thi gn kt vi thnh ph Cn Th hng ti hnh thnh trung tm gio dc -o to ca Vng; nng cao cht lng gio dc ton din; tng cng o to vo to li i ng gio vin v cn b qun l gio dc, phn u duy tr 100% gio vin cc cp c chun ha. Phn u n nm 2015 c 40% v nm 2020 c 50- 60% tng s trng cc cp hc t chun quc gia.

- Xy dng c cu ngnh ngh o to ph hp vi yu cu ca nn kinh t, o to phi gn vi gii quyt vic lm sau o to; a dng ha cc loi hnh o to ngh theo hng nng cao cht lng; ch trng o to ngh cho lao ng nng thn, cng c mng li cc trng dy ngh.

- Tng quy m o to chuyn nghip, bnh qun s sinh vin i hc, cao ng, trung hc chuyn nghip nm 2015 khong 200 sinh vin/1 vn dn v nm 2020 t 250 sinh vin/1 vn dn.

b) Y t

- Thc hin chng trnh mc tiu quc gia v y t v dn s k hoch ha gia nh, nng cao sc khe cng ng theo quan im d phng tch cc, gio dc dinh dng, v sinh phng bnh, rn luyn thn th, nng cao hiu qu tr bnh. Tng cng u t c s vt cht trang thit b v i ng cn b y t t tuyn tnh n c s p ng nhu cu khm, cha bnh ngy cng tng v s lng v cht lng.

- Phn u 100% trm y t x t chun quc gia; duy tr cc trm y t x, phng, phng khm a khoa c bc s,hon thin vic t chc y t khm p; phn u t t l 22 ging bnh/vn dn vo nm 2015 v 30 ging bnh vo nm 2020; bo m c trn 7 bc s, 1,5 dc s i hc/10.000 dn vo nm 2015 v trn 15 bc s, 2 - 2,5 dc s i hc/10.000 dn vo nm 2020.

c) Vn ha, th dc th thao

- Bo tn, k tha v pht huy c chn lc cc gi tr vn ha truyn thng, hnh thnh np sng vn minh, gianh vn ha; phn u n nm 2015, 95% h gia nh t tiu chun gia nh vn ha, nm 2020, 100% h gia nh t tiu chun gia nh vn ha; y mnh xy dng i sng vn ha mi nng thn; tp trung xy dng h thng thit ch vn ha ng b cc cp.

- Pht trin phong tro th dc, th thao trong cc tng lp, c quan, on th ca x hi; y mnh cng tc x hi ha, tng thm ngun lc u t c s vt cht; nng cao cng tc gio dc th cht trong nh trng; ch trng o to, bi dng lc lng th thao thnh tch tham gia cc gii thi u cp vng, cp quc gia.

d) Gim ngho, gii quyt vic lm v bo m an sinh x hi

- Thc hin ng b, ton din v hiu qu cc chng trnh xa i, gim ngho; xy dng cc gii php, m hnh gim ngho bn vng, to iu kin cho ngi ngho pht trin sn xut; c chnh sch khuyn khch x, h gia nh thot ngho, khuyn khch cc doanh nghip dy ngh, to vic lm cho ngi ngho.

- Phn u bnh qun mi nm gii quyt vic lm cho khong 25 - 27 ngn ngi ti ch hoc xut khu lao ng; gim t l tht nghip khu vc thnh th, nng t l s dng thi gian lao ng nng thn, chuyn dch c cu lao ng khu vc nng nghip sang lao ng khu vc phi nng nghip c nng thn v thnh th. Bo m thc hin tt chnh sch i vi ngi lao ng gp phn nng cao i sng nhn dn v n nh trt t, an ton x hi.

- y mnh cng tc phng, chng cc t nn x hi, tng cng v nng cao hiu qu cuc vn ng xy dng x/phng lnh mnh, khng c t nn x hi gn vi cuc vn ng Ton dn on kt xy dng i sng vn ha mi.

) Mi trng

Bo v v ci thin mi trng pht trin bn vng, tp trung vo qun l v x l nhim mi trng cc vng sn xut nng nghip v thy sn tp trung, cc khu du lch, bo v v phc hi tnh a dng sinh hc; tng cng cng tc x l nhim nc thi, cht thi cng nghip, nc thi th, ch ng phng chng thin tai, ng cu kp thi cc s c mi trng, bin i kh hu v hin tng nc bin dng.

e) Khoa hc v cng ngh

- Nghin cu trin khai cc gii php khai thc, s dng ti nguyn thin nhin theo hng bn vng; ng dng rng ri thnh tu khoa hc cng ngh mi nh cng ngh sinh hc, cng ngh sau thu hoch, to bc t ph v ging cy, con c nng sut, gi tr cao; khai thc cng ngh mi phc v c gii ha tng khu, tng cng on trong qu trnh sn xut nng nghip.

- H tr cc doanh nghip i mi cng ngh, ng dng cng ngh trong cc lng ngh truyn thng to s chuyn bin cn bn v nng sut, cht lng, hiu qu mt s ngnh kinh t quan trng nh ngnh nui trng thy sn v ngnh ch bin sn phm nng nghip, ngnghip. Pht trin th trng cng ngh, trin khai thc hin chin lc ng dng v pht trin cng ngh cao v hnh thnh mt s ngnh cng nghip, cng nghcao.

5. u t kt cu h tng

a) Giao thng

- ng b: Nghin cu nng cp cc tuyn ng tnh, tuyn ng cp huyn v lin x, ng giao thng nng thn ph hp vi ngun lc tng giai on; pht trin ng b cc tuyn ng ththeo quy hoch; xy dng h thng bn, bi ph hp, to iu kin thun li cho s vn chuyn ca ngi dn.

- ng thy: Tp trung khai thc trit th mnh vn ti ng thy, ci to, nng cp cc tuyn ng thy do Trung ng qun l; thng xuyn no vt cc tuyn ng thy trong tnh, chnh trang, nng cp b k ti cc bn tu v khu vc trung tm thnh ph, th x, th trn; nghin cu m rng cng Vnh Thi, nng cng sut thit k ln 1 triu tn/nm. Nghin cu u t cng Bnh Minh, cng Tr n (trn sng Hu), cng Tam Bnh, cng Vng Lim ph hp vi nhu cu pht trin v ngun lc tng giaion.

- Nghin cu m thm cc tuyn vn ti ng sng, ng bin i Cm-pu-chi-a v cc nc trong khu vc; cc tuyn vn ti hnh khch ng thy cht lng cao thnh ph H Ch Minh - Vnh Long v Vnh Long - thnh ph Cn Th, Vnh Long - ng Thp, Vnh Long - Long Xuyn, Chu c.

b) Thy li

Nghin cu tng bc u t xy dng h thng thy li cho vng chuyn trng cy n qu, vng nui trng thy sn tp trung, vng trng la; kin c ha thy li ni ng trn nhng vng khp kn thy li; quy hoch h thng thy li kt hp vi phc v giao thng nng thn trong iu kin bin i kh hu, nc bin dng.

c) Cp in

Pht trin mng li truyn ti, mng li phn phi in theo quy hoch bo m cp in an ton, lin tc, gim tn tht in nng trn li phn phi; nghin cu xy dng ngun d phngn nh, nht l i vi nhng vng xa ngun in quc gia; nghin cu v htr khuyn khch cho dn dng nhng ngun nng lng ti to nh mt tri, gi

d) Cp, thot nc v v sinh mi trng

- Tp trung u t nng cp, xy mi ng b h thng cp nc sinh hot cho cc th m bo theo nhu cu nc cho sinh hot, sn xut ca nhn dn; m bo cho dn c nng thn c tip cn vi nc sch, hp v sinh.

- Xy dng ng b h thng thot nc ma, thu gom v x l nc thi, c bit l ti khu th, khu cm cng nghip. Phn u n nm 2020, m bo cc th khng b ng ngp; rc thi y t ti cc bnh vin, trm x u c thu gom v x l; thnh ph c bi rc v nh my x l rc.

) Thng tin truyn thng:

Tip tc hin i ha, m rng mng li i i vi ng dng cng ngh hin i trong lnh vc bu chnh, vin thng v Internet, m bo an ninh thng tin p ng yu cu pht trin kinh t- x hi; n nm 2015 bnh qun c 35 my in thoi/100 ngi dn, c 12 -15% dn s s dng dch v Internet; n nm 2020 c 55 my in thoi/100 ngi dn v 50 - 60% dn s s dng dch v Internet.

6. Quc phng - an ninh

- Tng cng cng c quc phng, an ninh; pht huy sc mnh tng hp ca c h thng chnh tr nhm xy dng nn quc phng ton dn kt hp vi th trn an ninh nhn dn.

- Xy dng v trin khai thc hin tt cc phng n phng th, qun l cht ch qun d b ng vin m bo vs lng v cht lng; gn kt cht ch vi pht trin kinh t - x hi trn tng a bn, trong cng tc quy hoch, k hoch v cc chng trnh, d n u t pht trin.

IV. PHNG HNG T CHC KHNG GIAN PHT TRIN1. Pht trin th - nng thn.

- th: Pht trin h thng th, phn b mt h thng th trung tm nhiu cp, kt hp gia ci to cc th c v xy dng cc th mi to th cn bng pht trin gia cc vng v ph hp vi c th pht trin ca tng vng. Ch trng pht trin khu vc trng im theo hng th ha cc im th thnh trung tm pht trin cng nghip, dch v to ng lc cho s pht trin kinh t x hi, iu chnh phn b li dn c.

- nh hng n nm 2020, c 01 thnh ph Vnh Long, phn u huyn Bnh Minh t cc tiu ch th loi III; cc th trn Vng Lim, Tr n t tiu ch th loi IV; cc th trn Tn Qui (huyn Bnh Tn), Ph Qui (huyn Long H), Ci Ngang (huyn Tam Bnh), Hu Thnh (huyn Tr n), Ba Cng (huyn Tam Bnh), Tn An Lung (huyn Vng Lim), Qui An (huyn Vng Lim) t tiu chun th loi V. T l th hat 31% vo nm 2015 v t khong 60% vo nm 2020.

- Nng thn: Quy hoch cc tuyn, cm dn c theo kh nng thm canh cc loi cy trng, nh tuyn cm dn c khu vc chuyn la, cc tuyn cm dn c khu vc ven sng C Chin v ven sng Hu (cy n qu). Phn u n nm 2015 c 22 x t tiu ch nng thn mi, cc x cn li t t 10 n 15 b tiu ch nng thn mi tr ln; n nm 2020 c 50% s x t tiu ch nng thn mi, tng ng mc bnh qun chung ca c nc.

2. Pht trin cc vng kinh t

- Pht trin khu vc sng Tin vi cc tng trng l thnh ph Vnh Long c li th l u mi giao thng, trung tm thng mi - o to lu i; trung tm cng nghip vi khu cng nghip Ha Ph (huyn Long H), tuyn cng nghip C Chin (huyn Long H, Mang Tht).nh hng pht trin trng tm ca khu vc ny l thng mi, cng nghip -tiu th cng nghip, nui thy sn; pht trin vn cy n tri chuyn canh, gn vi du lch sinh thi cc x c lao trn sng C Chin v pht trin gio dc - o to vi cc trng i hc, cao ng, trung hc chuyn nghip v dy ngh. Vi v tr l ca ng kt ni tnh Tr Vinh v Bn Tre vi cu C Chinang xy dng, ch trng pht trin mnh thng mi, dch v vi th trung tm l th trn Vng Lim thnh cc tng trng th 3 ca tnh.

- Pht trin khu vc sng Hu vi cc tng trng th 2 ca tnh l th x Bnh Minh c li th l th k cn thnh ph Cn Th; vng sn xut rau mu chuyn canh lu i v cy c sn bi Nm Roi. nh hng pht trin trng tm ca khu vc ny l thng mi, sn xut rau mu chuyn ngnh, nui thy sn; pht trin vn cy n tri c sn gn vi du lch sinh thi v pht trin o to vi phn hiu cc trngi hc. Ch trng pht trin thng mi, dch v khu vc Tr n, l ni tip gip vi tnh Tr Vinh, nm trn ng giao thng thy, b kt ni khu kinh tm nh An, d n Quan Chnh B (tnh Tr Vinh) vi thnh ph Cn Th.

- Khu vc trung tm tnh vi thmnh l sn xut la v cy n tri. nh hng pht trin trng tm ca khu vc ny l tp trung cho sn xut la c sn xut khu, cy n tri v nui c trn rung la v nng vn, ngoi ra pht trin cc cm cng nghip gn vi ch bin lng thc, thy sn, cy n tri; pht trin thng mi, dch v, du lch

V. DANH MC CC D N U TIN NGHIN CU U T (Ph lc km theo)

VI. MT S GII PHP CH YU1. Gii php huy ng vn u t

Nhu cu vn u t ca ton tnh giai on 2011 - 2020 khong 240.000 t ng, trong thi k 2011 - 2015 khong 70.000 nghn t ng, thi k 2016 - 2020 l 170.000 t ng. Cn c vo kh nng cn i ngn sch hng nm, Tnh cn ch ng xy dng k hoch, phn k u t ph hp m bo vn cho cc cng trnh, d n trng im ca a phng; ng thi, cn c cc gii php c th huy ng c hiu qu cc ngun lc trong v ngoi nc cho u t pht trin nh:

- Xy dng v ban hnh danh mc cc chng trnh, d n cn ku gi u t n nm 2020. Trn c s y mnh cng tc qung b gii thiu, xc tin u t nhm thu ht vn u t t cc thnh phn kinh t, ch trng khai thc ngun vn ODA.

- Ci thin mi trng u t, mi trng sn xut, kinh doanh, tip tc ci cch th tc u t theo hng gn, minh bch, cng khai; to iu kin v c s h tng sn sng tip nhn cc d n u t; ban hnh cc c ch, chnh sch h tr u t trn c s li th vpht trin kinh t ca a phng v ph hp vi cc quy nh ca php lut.

- y mnh x hi ha thu htu t nht l trong cc lnh vc gio dc, o to, y t, vn ha, th thao, pht thanh, truyn hnh, khoa hc cng ngh, bo v mi trng

- M rng cc hnh thc u t BOT, BT, BTO, PPP, to iu kin thun li pht trin cc th trng vn; pht trin cc hnh thc lin doanh, lin kt u t, gp vn u t bng ti sn.

2. Gii php v o to, pht trin ngun nhn lc

- Pht trin ngun nhn lc ca Tnh theo hng c bn p ng tt nhu cu v lao ng trong cc ngnh ngh,kt hp hi ha gia o to vi gii quyt vic lm cho ngi lao ng; c chnh sch thu ht i ng chuyn gia, lao ng c trnh cao.

- Coi trng cng tc o to, bi dng, quy hoch v b tr s dng cn b nht l i ng cn b lm cng tc qun l; pht hin, bi dng ti nng tr l cn b, cng chc v cc nh qun l, nghin cu khoa hc, k thut; a dng ha cc hnh thc o to, ch trng cng tc o to ngh chuyn su; nng cao cht lng o to; s dng cn b,cng chc ph hp vi ngnh, ngh chuyn mn c o to.

- Thc hin x hi ha cng tc gio dc, o to; khuyn khch cc hot ng x hi v khuyn hc, khuyn ti, xy dng x hi hc tp; c kh nng hi nhp quc t.

3. Gii php v khoa hc v cng ngh

- y mnh phong tro pht huy sng kin, sng ch ci tin k thut trong sn xut, kinh doanh, thc hin ng quynh quyn s hu cng nghip; khuyn khch cc doanh nghip dnh vn cho nghin cu i mi cng ngh, ci tin k thut nng cao nng sut lao ng; hp tc cht ch vi cc vin nghin cu, cc trng i hc thc hin tt vic nghin cu gn vi ng dng vo sn xut, i sng.

- i mi c ch, chnh sch o to, bi dng, s dng ngi lao ng v c k hoch tr ha i ng cn blm cng tc khoa hc cng ngh; thc hin tt chnh sch i ng cc nh khoa hc, chnh sch khuyn khch x hi ha trong nghin cu khoa hc v pht trin th trng khoa hc cng ngh.

- u t c s vt cht phc vcng tc qun l khoa hc cng ngh; tng cng kim sot hot ng chuyn giao cng ngh, gim nh cng ngh, cht lng v nhim mi trng.

4. Gii php v chnh sch u t

Xy dng chng trnh, d n ku gi u t: Trn c s quy hoch pht trin kinh t - x hi, lp cc d n c kh nng em li hiu qu sn xut kinh doanh; thc hin cc chnh sch thng thong thu ht u t ca cc thnh phn kinh t trong tnh, trong nc v ngoi nc. Thu ht u t ca ngi Vnh Long nc ngoi v qu hng.

Tng cng cng tc xc tin u t thu ht cc ngun ODA. To mi trng u t hp dn ngun vn FDI bng cc c ch min gim thu, gim gi thu t, chun b h tng khu cng nghip. Nghin cu mt s c ch c bit nh cho nc ngoi thu t pht trin KCN, dch v, cho cc cng ty nc ngoi m cc siu th, trung tm thng mi ti thnh ph Vnh Long, khu vc Bnh Minh v.v

5. Tng cng hp tc v pht trin th trng

- Tng cng lin kt vi cc tnh, thnh ph trong vng ng bng sng Cu Long, vng kinh t trng im pha Nam v thnh ph Cn Th nhm khai thc tt tim nng, li th tng a phng v xy dng c vng nguyn liu p ng c v s lng v cht lng cho sn xut, tiu dng, xut khu; khuyn khch lin doanh, lin kt trong u t, sn xut, ch bin, tiu th sn phm, hng ha.

- Pht trin th trng hng ha, dch v; nng cao cht lng sn phm v thng hiu hng ha trn th trng. Tng cng xc tin thng mi, thc hin a dng ha th trng xut khu; mrng th trng nng thn trong vic tiu th sn phm.

6. Gii php v bo v ti nguyn v mi trng

Tng cng cng tc tuyn truyn, gio dc nng cao nhn thc cho ngi dn v cc t chc, doanh nghip v bo v mi trng, coi bo v mi trng l trch nhim chung ca ton x hi.

R sot, b sung, hon chnh cc quy nh bo m khai thc, s dng hp l, tit kim v c hiu qu cc ngun ti nguyn thin nhin vo pht trin kinh t - x hi v bo v mi trng.

u t cc cng trnh x l cht thi cc khu, cm cng nghip, bnh vin, khu th,.. m bo cht thic x l t tiu chun trc khi thi ra mi trng. Xy dng c ch h trdoanh nghip i mi v ng dng cng ngh tin tin, cng ngh sn xut sch gim thiu nhim v bo v mi trng. Thng xuyn kim tra, gim st v x l nghim cc trng hp vi phm php lut v bo v mi trng.

VII. T CHC V GIM ST THC HIN QUY HOCH1. Cng b, ph bin Quy hoch.

- T chc cng b, ph bin Quy hoch tng th pht trin kinh t - x hi ca tnh Vnh Long n nm 2020 cho cp y ng v chnh quyn, cc ngnh, on th, cc doanh nghip v nhn dn trong Tnh ngay sau khi c Th tng Chnh ph k ban hnh. Cn c ni dung ca Quy hoch, tin hnh xy dng chng trnh hnh ng c th c k hoch thc hin t kt qu.

- y mnh hot ng xc tin u t, t chc gii thiu, qung b v tim nng, li th ca a phng vi cc nh u t; gii thiu cc chng trnh, d n cn c u tin u t, trong ch trng ku gi u t cc d n trng im to ra nhng sn phm ch lc.

2. Xy dng chng trnh hnh ng

- Tnh cn c th ha ni dung ca Quy hoch bng cc k hoch 5 nm, hng nm thc hin v c nh gi kt qu t c. Trn c s tin hnh r sot li Quy hoch v trnh cp c thm quyn iu chnh, b sung kp thi m bo ph hp vi nhim v pht trin kinh t - x hi ca a phng trong tng thi k.

- Cc cp, cc ngnh, cc t chc chnh tr - x hi v nhn dn trong Tnh c trch nhim kim tra, gim st vic thc hin Quy hoch.

iu 2. Quy hoch tng thpht trin kinh t - x hi tnh Vnh Long n nm 2020 l c s cho vic lp, trnh duyt v trin khai thc hin cc quy hoch ngnh (quy hoch xy dng, quy hoch, k hoch s dng t v cc quy hoch khc c lin quan), cc d nu t trn a bn tnh Vnh Long.

iu 3. Giao y ban nhn dn tnh Vnh Long cn c ni dung Quy hoch c ph duyt ch o vic lp, duyt v trin khai thc hin theo quy nh cc ni dung sau:

1. Quy hoch tng th pht trin kinh t - x hi cp huyn; quy hoch xy dng; quy hoch, k hoch s dngt; quy hoch pht trin cc ngnh, lnh vc trong Tnh ph hp vi nhim vpht trin kinh t - x hi gn vi m bo quc phng, an ninh.

2. Lp cc k hoch di hn, trung hn, ngn hn gn vi cc d n c th c k hoch b tr vn u t ph hp.

3. Nghin cu xy dng, ban hnh hoc trnh cp c thm quyn ban hnh (nu vt qu thm quyn) mt s c ch,chnh sch ph hp vi yu cu pht trin kinh t - x hi ca Tnh.

iu 4. Cc B, ngnh lin quan trong phm vi chc nng, nhim v, quyn hn ca mnh c trch nhim:

1. Hng dn v gip y ban nhn dn tnh Vnh Long trong qu trnh thc hin Quy hoch.

2. Phi hp vi tnh Vnh Long trong qu trnh r sot, iu chnh, b sung quy hoch ngnh, lnh vc bo m tnh ng b, thng nht ca Quy hoch; xem xt, h tr Tnh trong vic huyng cc ngun vn u t trong nc v nc ngoi thc hin Quy hoch.

iu 5. Quyt nh ny c hiu lc thi hnh k t ngy k ban hnh.

iu 6. Ch tch y ban nhn dn tnh Vnh Long, cc B trng, Th trng c quan ngang B, Th trng cquan thuc Chnh ph chu trch nhim thi hnh Quyt nh ny./.

Ni nhn:- Ban B th Trung ng ng;- Th tng, cc Ph Th tng Chnh ph;- Cc B, c quan ngang B, c quan thuc CP;- VP BCTW v phng, chng tham nhng;- HND, UBND cc tnh, TP trc thuc TW;- Vn phng Trung ng v cc Ban ca ng;- Vn phng Ch tch nc;- Hi ng Dn tc v cc y ban ca Quc hi;- Vn phng Quc hi;- Ta n nhn dn ti cao;- Vin Kim st nhn dn ti cao;- Kim ton Nh nc;- y ban Gim st ti chnh Quc gia;- Ngn hng Chnh sch X hi;- Ngn hng Pht trin Vit Nam;- UBTW Mt trn T quc Vit Nam;- C quan Trung ng ca cc on th;- VPCP: BTCN, cc PCN, Cng TTT, cc V, Cc, n v trc thuc, Cng bo;- Lu: Vn th, P (5b).TH TNG

Ta : Cc Gii php nng cao cht lng v gim tt tht in nng trn li in phn phi qun Long Bin - H Ni: Lun vn thc s

Tc gi: Nguyn Thanh, H

T kha: Lun vn thc sNng lngCht lngin nng

Ngy pht hnh: 8-Feb-2012

Nh xut bn: i hc Bch Khoa H Ni

Series/Report no.: H.2008744

Tm tt: Cng vi s pht trin ca nn kinh t, x hi, nhu cu s dng in ca mi quc gia u tng nhanh, vic m bo p ng kp thi v y nhu cu in nng, truyn ti in an ton n tng h tiu th vi cht lng in nng cao l tiu ch quan trng hng u ca mi quc gia. Mc tiu c t ra l m bo tin cy cung cp in ngy cng cao, t l tn tht gim, qun l, vn hnh thun li, chi ph vn hnh nh. Mc ch ca lun vn l xy dng c s l thuyt, p dng mt s phng php nhm gii quyt cc vn trong lnh vc qun l vn hnh trong iu kin qun Long Bin - a phng vng ven mi hnh thnh - ang trong giai on cng nghip ha hin i ha vi nhng bc pht trin kinh t, x hi nhy vt v mc tng trng hng nm cao. Lun vn ny gm 4 phn: Phn 1:nh gi hin trng h thng cung cp in qun Long Bin .- Phn 2: c im chung v phng php pht trin kinh t-x hi qun Long Bin .- Phn 3: Cc gii php nng cao cht lng v gim tn tht in nng . - Phn 4 : Cc gii php nng cao cht lng v gim tn tht in nng p dng trn li phn phi qun Long Bin

URI: http://hdl.handle.net/123456789/9034

Xut hin trong b su tp:H thng in (TL tham kho)

\Nng cao tin cy cung cp in trn li in phn phi

12/04/2012 09:33:41 tin cy cung cp in ca li in phn phi c hiu l kh nng ca h thng cung cp y v lin tc in nng cho h tiu th vi cht lng in nng (in p v tn s) m bo (ng quy nh).

A. tin cy cung cp in:

nh gi tin cy cung cp in, EVN c cc quy nh v ch tiu sut s c (ng dy v trm bin p) trong qun l vn hnh h thng in lm c s cho vic nh gi cht lng qun l vn hnh ngun li p ng yu cu cung ng in lin tc cho khch hng. C th nh sau:

- Sut s c thong qua ng dy trung th : 12 v / 100 km.nm.

- Sut s c vnh cu ng dy trung th : 3,6 v / 100 km.nm.

- Sut s c vnh cu TBA : 1,8 v / 100 MBA.nm

T cc quy nh trn buc cc n v thnh vin phi tch cc a ra k hoch v cc phng n ci thin cht lng cung ng in trn h thng in ton quc, ng thi c tc ng tch cc n thc trch nhim ca i ng cn b cng nhn vin lm cng tc qun l k thut vn hnh h thng in. Tuy nhin, vic nh gi tin cy cung cp in qua ch tiu sut s c cn mt s bt cp sau :

- Ch tiu sut s c ch cho bit s ln mt in (do s c) trung bnh ca h thng. Ta khng bit c s ln v thi gian mt in ca khch hng, cng nh phm vi mt in, lng cng sut v in nng khng cung cp c (do mt in); t tnh ton cc thit hi do mt in gy ra v ra cc bin php thch hp gim s ln v thi gian mt in khch hng, cng nh gim phm vi mt in tng tin cy ca h thng.

- Vi ch tiu sut s c nu trn, ta khng thy r hiu qu kinh t em li ca cc d n ci to li in, lp t cc h thng t ng phn on s c cng nh h thng t ng ho li in phn phi, c bit l s cn thit phi xy dng cc mch lin lc gia cc trm ngun, cc mch vng cung cp in ... gim thi gian mt in cng nh hn ch phm vi (s h mt in, lng cng sut v in nng khng cung cp c) do s c hoc thao tc hay bo dng th nghim nh k.

gii quyt vn trn, cn phi xy dng thm nhiu ch tiu c th nh gi thc cht tin cy cung cp in v cht lng vn hnh ca li in cng nh cng tc qun l vn hnh.

Mt s Cng ty in lc cc nc xy dng cc ch s cht lng theo di tin cy vn hnh ca h thng. Cc ch s cht lng ny c th dng so snh cht lng phc v gia cc Cng ty, gia cc n v trong cng Cng ty hay dng so snh trc tip cht lng trc v sau ci to ca mt xut tuyn hay ca c mt h thng.

T chc IEEE (Institute of Electrical and Electronic Engineers) ca M xy dng mt s ch s nh gi tin cy cung cp in, c th nh sau :

A.1 - Cc ch s nh gi tin cy v mt mt in ko di :

1. Ch s tn sut mt in trung bnh ca h thng (System Average Interruption Frequency Index SAIFI): Ch s ny cung cp thng tin v s ln mt in trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

2. Ch s thi gian mt in trung bnh ca h thng (System Average Interruption Duration Index - SAIDI): Ch s ny cung cp thng tin v thi gian (pht hoc gi) mt in trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

3. Ch s thi gian mt in trung bnh ca khch hng (Customer Average Interruption Duration Index - CAIDI): Ch s ny th hin thi gian trung bnh cn phc hi cung cp in cho khch hng trong mt ln mt in (vnh cu).

4. Ch s tng thi gian mt in trung bnh ca khch hng (Customer Total Average Interruption Duration Index - CTAIDI): i vi khch hng thc t mt in, ch s ny th hin tng thi gian trung bnh khch hng trong thng bo b mt in. Ch s ny c tnh ton nh ch s CAIDI, tr vic khch hng b mt in nhiu ln ch c tnh mt ln.

5. Ch s tn sut mt in trung bnh ca khch hng (Customer Average Interruption Frequency Index -CAIFI): Ch s ny th hin s ln mt in trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

6. Ch s sn sng cp in trung bnh (Average Service Availability Index ASAI): Ch s ny th hin thi gian trung bnh (thng tnh bng %) m khch hng c cung cp in trong vng mt nm. c nh ngha l t s gia tng s gi ca khch hng c cung cp trong nm v tng s gi khch hng yu cu (s gi khch hng yu cu = 24gi/ ngy*365 ngy = 8760 gi ).

7. Ch s tn sut mt in trung bnh ca h thng (Average System Interruption Frequency Index ASIFI) v mt ph ti : c nh ngha l t s gia tng s cng sut (kVA) b gin on trn tng s cng sut (KVA) c cung cp.

y l ch s quan trng i vi cc khu vc cp in ch yu cho cng/thng nghip. Ch s ny cng c s dng bi cc cng ty khng c h thng theo di khch hng.

8. Ch s thi gian trung bnh mt in ca h thng (Average System Interruption Duration Index ASIDI) v mt ph ti : c nh ngha l t s gia tng in nng khng cung cp c (do b gin on cung cp in) trn tng s cng sut (KVA) c cung cp.

9. Ch s tn sut mt in trung bnh ca khch hng (Customers Experiencing Multiple Interruptions - CEMIn): Ch s ny theo di s s kin (n) nhng ln mt in i vi mt khch hng no . Mc ch l xc nh s phin toi cho khch hng m gi tr trung bnh khng thy c.

A.2 - Cc ch s nh gi tin cy v mt mt in thong qua

1. Ch s tn sut mt in thong qua trung bnh ca h thng (Momentary Average Interruption Frequency Index MAIFI): Ch s ny cung cp thng tin v s ln mt in thong qua trung bnh ca mt khch hng (trong mt khu vc) trong mt nm.

2. Ch s tn sut mt in thong qua trung bnh ca h thng (Momentary Average Interruption event Frequency Index MAIFIE): Ch s ny cung cp thng tin v con s trung bnh ca cc s kin mt in thong qua ca mt khch hng (trong mt khu vc) trong mt nm.

3. Ch s tn sut mt in (thong qua v ko di) trung bnh ca khch hng (Customers Experiencing Multiple Sustained Interruptions and Momentary Interruptions events CEMSMIn): Ch s ny theo di s s kin (n) nhng ln mt in thong qua v ko di i vi mt khch hng no . Mc ch l xc nh s phin toi cho khch hng m gi tr trung bnh khng thy c.

A.3 - Mt s ch s nh gi tin cy cung cp in khc

1. Ch s khng sn sng cp in trung bnh (Average Service Unavailability Index - ASUI)

2. Ch s in nng khng cung cp (Energy Not supplied Index - ENS)

3. Ch s in nng khng cung cp trung bnh (Average Energy Not supplied Index - AENS)

Phn ln cc nc trn th gii ang p dng cc ch s SAIFI, SAIDI, CAIFI, CAIDI nh gi tin cy cung cp in v hin nay Vit Nam ang trin khai p dng cc ch s SAIDI, SAIFI, MAIFI nh gi tin cy cung cp in.

B. Cc bin php nng cao tin cy cung cp in

nng cao tin cy cung cp in trn li phn phi, c hai gii php chnh:

Gii php lm gim s c v

Gii php lm gim thi gian mt in.

B.1 - Cc bin php lm gim s c (ngn chn s c xy ra)

1. Nng cao cht lng ca thit b vn hnh: S dng cc thit b c cht lng vn hnh tt (lu : thit b c, vn hnh lu ngy hay thit b mi nhng c cht lng thp vn gy ra sut h hng cao) v c tnh t ng ha cao. Ln k hoch v tng bc thay th cc thit b c sut h hng cao bng cc thit b mi v c sut h hng thp.

V d nh Tng Cng ty in lc min Trung trin khai p dng cc cch in ng loi line post v pin post thay cho cc cch in ng loi pin type (truyn thng) c sut s c cao. Khuyn co khng s dng cc my ct (S&S), cc recloser (VR3S), cu ch t ri c sut s c cao.

2. Trong thit k, mua sm, lp t cn s dng cc vt t, thit b v p dng cc gii php ph hp vi iu kin vn hnh li in nhm gim bt cc s c c tc nhn t bn ngoi, v d nh :

- S dng dy bc cch in ngn nga cc s c do tip xc vi cc vt th khc.

- S dng cc thit b ph hp vi mi trng vn hnh nh s dng s chng nhim mn khi cc ng dy i qua khu vc gn bin b nhim mn,

- Lp t cc chng st ng dy, m phng cho cc ng dy i qua cc vng c mt st ln, sut s c do st cao.

3. Tng cng cng tc kim tra, bo dng ng dy, thit b vn hnh trn li ngn nga s c ch quan.

- Trang b y phng tin phc v cho cng tc qun l vn hnh, bo dng nh xe thang, thit b kim tra pht nng

- o to nng cao kin thc v tay ngh cng tnh k lut cho nhn vin vn hnh.

- Tng bc nng cao t l sa cha li in bng hnh thc hot-line (sa cha khi li in ang vn hnh).

B.2 - Cc bin php lm gim thi gian mt in (khoanh vng v khc phc s c nhanh)

1. Gim n mc ti thiu khu vc mt in bng cch tng s lng lp t thit b phn on.

2. Nhanh chng khoanh vng s c bng cch p dng cng ngh t ng ha li in phn phi nhm t ng phn vng s c.

3. Xy dng h thng mch kp (2 mch), mch vng

4. Khc phc s c nhanh.

- Xc nh nhanh im s c bng cc thit b chuyn dng d im s c nh thit b ch th s c (Fault indicator)

- Trang b cc thit b chuyn dng x l s c.

- Tng cng cng tc bi dng, hun luyn nhn vin vn hnh v trnh v k nng x l s c.

Phn tip theo s gii thiu mt thit bi bao s c ng dy trn khng (Fault indicator) loai FLA3 cua hang EMG/GERMANY c kh nng xac inh ngay vng s c, gip pht hin v x ly nhanh im s c, kt qu l gim c thi gian mt in ca khch hng. iu ny ng ngha vi vic ci thin ng k cc ch s SAIFI, SAIDI, CAIFI, CAIDI; nng cao cht lng cung cp in ca cc cng ty in lc.

C. Thit b bo s c FLA3 ca hng EMG (Cng ha Lin bang c)

C.1 - Nguyn l hoat ng

Thit b bo s c thc cht l cc cm bin dng in. Khi dng in i qua thit b bo s c c gi tr vt qu gi tr ci t trc (dng in v thi gian), thit b bo s c s tc ng v bo hiu bng n hay c gip nhn vin qun l vn hnh nhanh chng tm ra im s c.

C.2 Phm vi p dng

Minh ha vic s dng thit b bo s c trn li in hnh tiaFLA3 c dng cho ng dy trn khng.

Vi s li in nh hnh 1, s c loi FLA3 (Mt nm u nhnh r 1, hai nm sau nhnh r 2 v 3 nm u nhnh r 3). Khi c s c trn nhnh r NR3, s xut hin dng ngn mch chy qua cc thit b bo c 2 v 3 lm cc thit b ny tc ng bo s c qua tn hiu n v c. Khi my ct u ngun ct ra, nhn vin qun l vn hnh kim tra cc thit b bo s c:

- u tin kim tra thit b bo s c 1 nhnh r NR1, khng thy tn hiu chng t s c nm trn trc chnh pha sau nhnh r 1.

- Kim tra thit b ch bo s c 2, thy bo tn hiu, chng t c s c pha sau n. Reset li thit b ch th s c ny v kim tra tip.

- Kim tra thit b ch th bo s c 3 trn nhnh r NR3, thy bo tn hiu, chng t c s c trn nhnh r 3. C lp nhnh r NR3 v ngh ng li my ct u ngun cp in cho cc phn on khng b s c. Tin hnh kim tra v sa cha s c trn nhnh r NR3.

Thit b FLA3 cn c th pht huy hiu qu cao hn nu c 2 xut tuyn i ra t mt feeder. Trong trng hp , chng ta c th gim ti 50% thi gian d tm s c v khi , ch FLA3 trn xut tuyn c s c mi bo tn hiu, v chng ta c th c lp ngay xut tuyn v ng li my ct u ngun ti lp cung cp in cho xut tuyn khng b s c.

C.3 Nhng u im ca FLA3

1. Thit b FLA3 s dng lp t cho ng dy trn khng vi cp (hay dy trn) c ng knh ti 38mm (Maximum 40mm). Kt cu ngm FLA3, c thit k chc chn, thich hp lp t vi hu ht cc loi cp trn khng, ngay c cc loi cp trn khng c chiu dy lp cch in cao nh ti li in ca in lc thnh ph H Ch Minh.

2. Thit b FLA3 c thit k c th lp t hay tho ra bng so thao tc "Hot-Line" nn rt thun tin khi lp t hay tho g thay i v tr s dng trn li m khng phi cp in.

3. Ch th chnh xc v tin cy, s dng n gin v hiu qu.

4. Kt cu gn nh, nhng chc chn, m bo cho vic vn hnh an ton.

5. Ch th s c bng FLAG (mu cam) v LED (nh sng trng) nn c th d dng pht hin lc ban ngy hay ban m.

6. Cc thng s vn hnh ca FLA3 u c ci t qua "REMOTE CONTROL" sau khi c lp t trn li tu theo yu cu ca ngi s dng.

- Thi gian bo s c: 30 720min (12 gi) vi bc chnh l 30pht

- Dng hot ng: t 40 1.500A vi bc chnh 20A

- Thi gian chu xung (qu ): 40 300ms vi bc chnh 20ms (mi-li-giy)

7. Ngi s dng c th c kim tra hay iu chnh cc thng s vn hnh ci t ca FLA3 qua b "REMOTE CONTROL" di t. Phn mm n gin v thn thin vi End-User.

8. Thit b FLA3 c th hot ng theo thng s ci t theo yu cu ca ngi s dng hay hot ng theo ch "AUTO" (ch AUTO: thit b FLA3 hot ng theo s thay i dng ti ca li).

9. Thng qua b REMOTE CONTROL ngi s dng c th "SELF TEST " - kim tra hot ng ca FLA3 trc v sau khi lp t trn li.

10. Thng qua b REMOTE CONTROL ngi s dng c th c c dng in ang vn hnh trn li in m FLA3 ang treo.

V Khc Hong - Li in cao th min Trung (CGC)o nhit chnh xc ca ng dy truyn ti

20/04/2012 14:45:04Vin Nghin cu in nng (EPRI) tin hnh mt nghin cu nh gi nhm xc nhn loi cm bin nhit mi ca Cng ty Qun l Ri ro in lc (URMC) c th o chnh xc nhit ng dy truyn ti thng qua mt quang ph rng do dy dn sinh ra, cng nh cc iu kin ti hin trng.

Cc th nghim ca EPRI xc nhn cm bin nhit trc tip (Thermal Direct) c th o lng chnh xc nhit ng dy truyn ti.

Vic hon thnh cc th nghim chng minh rng khng cn thit phi phng on nhit dy dn. Vi cng ngh ny, ngnh in v cc khch hng s bit c chnh xc hn kh nng chu ti ca dy dn.

B phn th nghim cao p ca EPRI ti Lenox, Massachusetts thc hin mt cuc th nghim ngoi tri, vic o c c tin hnh so snh php o ca Thermal Direct vi thit b gim st ng dy ca EPRI. Thermal Direct c kh nng o nhit dy dn vi sai s t hn 50C trong iu kin vn hnh bnh thng ca ng dy truyn ti. Tt c cc o c ca EPRI v URMC c gi ring cho n khi hon thnh tng th nghim.

Dale Douglass, k s chnh ti Cng ty T vn giao nhn in, ngi chng kin cc cuc th nghim, cho rng vic o trc tip nhit dy dn c th loi b nhu cu kim tra ngoi quan ca nhm cng tc ti hin trng cc phn on ng dy s c. ng cng lu rng vic o trc tip nhit dy dn ti nhiu im u ni trn ng dy s cho ra cc tnh ton chnh xc v nhit cao ti cc khong vng ca dy dn khi s dng vi chng trnh thit k ng dy nh PLS_CADD.

Douglass ni rng: Gi tr o nhit dy dn ca Thermal Direct bng hoc thp hn cht t so vi gi tr o c t thit b ca EPRI; gi tr o ny c chp nhn v a ra c kt qu c on kh tin cy trong iu kin nhit cao nht. Thermal Direct cho thy l mt s thay th c tim nng cho cc phng php tnh ton phc tp hn vn cn phi bit chnh xc iu kin thi tit v ga tr dng in qua dy dn ti thi im o.

Cc cuc th nghim nh gi tc ng ca nhiu yu t bao gm: bc x nhit ca dy dn, nhit dy dn, tit din dy dn v iu kin mi trng ti hin trng. S dng thit b Thermal Direct c gn trn trc thng, URMC qut nhit cc phn on ng dy v a ra kt qu thng qua cc phng php c khc nhau nh theo thi gian, theo khong dy v theo loi u d cm bin. Nhit dy dn c thit lp thng qua vic iu khin dng qua dy dn. Cc cm ng ca EPRI c lp t ti nhiu im trn ng dy dng o gi tr dng in qua dy