380KV Contingency Scan

8/17/2019 380KV Contingency Scan

1/12

The Turkish Grid have many transmission lines with 380 KV voltage level. The totalnumber of 380 KV transmission lines is 161 line. set of !ontingen!ies related tothese lines was built" this set of !ontingen!ies have 30# !ontingen!ies. fter runningthis !ontingen!y set on the Turkish $ower %ystem" the following !ontingen!ies wereinse!ure&

6' ().8*+ *,.)6 -nse!ure )/T/% 380. #3#610 #31110 68 (,.,8+ *'.3' -nse!ure )%2 380. #31110 #3#610 133 (81.0#+ #*.86 -nse!ure )K245K$- 380. )#0*11 )##010 161 (''.,)+ *,.,8 -nse!ure )%/4-%/7- 380. *10010 *10#10 16# (''.,)+ *,.,, -nse!ure )4$-2 380. *10#10 *10010 163 (''.,)+ *,.,8 -nse!ure )%/4-%/7- 380. *10010 *10110 16) (''.,)+ *,.,8 -nse!ure )V%K 380. *10110 *10010 16* (''.,)+ *,.,, -nse!ure )4$-2 380. *10#10 *10110 166 (''.,)+ *,.,8 -nse!ure )V%K 380. *10110 *10#10 16' (''.1,+ *,.,' -nse!ure )K%380 380. *1)310 *10110 168 (''.,)+ *,.,8 -nse!ure )V%K 380. *10110 *1)310 1'0 ('1.#*+ *#.'# -nse!ure )/25945/ 380. *#0111 *#0010

1'1 (',.01+ *3.'3 -nse!ure )/2-:- 380. *#0110 *#0111 1'# ('1.#)+ *#.*3 -nse!ure )/25945/ 380. *#0111 *#0110 1'3 (''.1,+ *,.,' -nse!ure )K%380 380. *1)310 *#0110 1') ('8.6*+ *1.,3 -nse!ure )/2-:- 380. *#0110 *1)310 1'* (''.,)+ *,.,8 -nse!ure )%/4-%/7- 380. *10010 )#0,10 1'' (''.,)+ *,.,8 -nse!ure )%/4-%/7- 380. *10010 )#0*10 1', (''.,)+ *,.,8 -nse!ure )%/4-%/7- 380. *10010 *#0010 18* ('8.'1+ *#.8' -nse!ure )/2-:- 380. *#0110 330310 18' ('8.03+ *,.8# -nse!ure )K4;%- 380. 61#'10 610)10 188 (',.'1+ *,.8) -nse!ure ):T-2K4 380. 610)10 61#'10 18, ('8.03+ *,.8# -nse!ure )K4;%- 380. 61#'10 61#310 1,1 (',.),+ *,.83 -nse!ure )%; 380. 6#0610 6#0#10

1,3 (',.*1+ *,.8) -nse!ure )7


2/12

tri??ing the line they will be isolated from the network" !ausing the instability. Thesetwo generators are the se!ond biggest generators in the Turkish Grid.

Generator angle (degrees)

Time (sec)

0.000 0.166 0.332 0.497 0.663 0.829 -30

144

318

492

666

840


Time (sec)

0.000 0.166 0.332 0.497 0.663 0.829 -20

150

320

490

660

830

Figure 1: System Response for Contingencies 67, and 68

Contingencies 133, and 292:

This !ontingen!y is !ausing a tri??ing of a main transmission line with a series!a?a!itor in it" the system res?onse was terminated early as shown in 9igure #" leftside. To solve this ?roblem then the a@ Generator %?eed eviation setting in T%Tis in!reased to 1 ?.u instead of 0.1 ?.u. The result system res?onse is shown in9igure #" right side. The system behavior after the fault shows an interestingse?aration between the generators" the generators !an be divided into 3 maingrou?s =or 6 grou?s>. s a result" this !ontingen!y !an be !onsidered as aninteresting !ontingen!y for more investigation.


Time (sec)

0.00 0.02 0.04 0.06 0.08 0.10 -13

-0

13

25

38

51


Time (sec)

0.000 0.528 1.057 1.585 2.113 2.642 -1000

5600

12200

18800

25400

32000

Figure 2: System Response for Contingencies 133, and 292 for dierent S! setting

Contingencies 161, 162, 163, 16", 16# and 166:

The simulation was terminated at early stage dire!tly after the fault was a??lied" asshown in 9igure 3" left side. 9or solving that as mentioned before the a@ Generator%?eed deviation was in!reased to 1 ?.u instead of 0.1 ?.u. The simulation result is


3/12

shown in 9igure 3" right side. 9rom 9igure 3" it !an be seen that this fault is !ausingthe three generators !onne!ted to bus =*10#10 )4$-2 380> to run out ofsyn!hronism" these generators are&*1068G/25)4$-2*106,G/25)4$-2*10'0G/25)4$-2


Time (sec)

0.000 0.021 0.042 0.064 0.085 0.106 -13

-0

13

25

38

51


Time (sec)

0.000 0.087 0.173 0.260 0.347 0.433 -100

700

1500

2300

3100

3900

Figure 3: System Response for Contingencies 161, 162, 163, 16", 16#, and 166

Contingencies 167, and 168:

The simulation was terminated at early stage dire!tly after the fault was a??lied" asshown in 9igure )" and 9igure * left side. 9or solving that as mentioned before thea@ Generator %?eed deviation was in!reased to 1 ?.u instead of 0.1 ?.u. Thesystem res?onded in a diAerent way for both !ontingen!ies" although both!ontingen!ies are related to the same transmission line.9or !ontingen!y 16'" the system res?onse was stable as shown in 9igure )" rightside. n the other hand" the system res?onse was unstable for !ontingen!y 168" asshown in 9igure *" right side. The generators !aused instability for !ontingen!y 168were as follows&*1068G/25)4$-2*106,G/25)4$-2*10'0G/25)4$-2*1101G/25K/2-5/2B*110#G/25K/2-5/2B*1103G/25K/2-5/2B*110)G/25K/2-5/2B*110*G/25K/2-5/2B*1106G/25K/2-5/2B

The !ontingen!y 168 !an be !onsidered as interesting in some way for our resear!h.


4/12


Time (sec)

0.00 0.02 0.04 0.06 0.08 0.10 -13

-0

13

25

38

51


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -40

-16

8

32

56

80

Figure ": System Response for Contingencies 167 for dierent S! setting


Time (sec)

0.00 0.02 0.04 0.06 0.08 0.10 -13

-0

13

25

38

51


Time (sec)

0.000 0.207 0.415 0.622 0.830 1.037 -1000

1600

4200

6800

9400

12000

Figure #: System Response for Contingencies 168 for dierent S! setting

Contingencies 17$, 171, and 172:

This fault is !ausing a tri??ing of transmission line with a shunt indu!tan!e=#03.'Vr>. The simulation was terminated at an early stage as shown in 9igure 6"left side. 9rom 9igure 6" left side" we !an say that the system is inse!ure be!ause of1 generator running away from syn!hronism" that generator is =*#1)61 G(/2-:6.30>. n the other hand if we tried to for!e T%T to advan!e the simulation afterthat to !he!k the system res?onse at later stages by in!reasing the a@ Generator%?eed deviation to 1 ?.u instead of 0.1 ?.u." the system was se!ure as shown in9igure 6" right side.9rom the ?revious result" it !an be seen that if the simulation terminated at earlystages dire!tly after the fault" then more investigation is needed to make sure thatthe !ontingen!y under study is indeed inse!ure.


5/12


Time (sec)

0.000 0.037 0.073 0.110 0.147 0.183 -14

3

21

38

56

73


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -30

-8

14

36

58

80

Figure 6: System Response for Contingencies 17$, 171, and 172 for dierent S! setting,%eft insecure, rig&t secure

Contingencies 173, and 17":

This fault is ha??ening in a tie line !onne!ting rea *1 and rea *#. 9or the normalsettings of T%T related to a@ Generator %?eed eviation settings as 0.1 ?.u" thesystem res?onse was inse!ure" and terminated at early stage for both !ontingen!iesas shown in 9igure '. ;ut if this setting was in!reased to 1 ?.u" then the systemres?onse was se!ure" as shown in 9igure 8C


Time (sec)

0.00 0.02 0.04 0.06 0.08 0.10 -13

-0

13

25

38

51


Time (sec)

0.000 0.041 0.082 0.122 0.163 0.204 -20

6

32

58

84

110

Figure 7: System Response for Contingencies 173, and 17" for S! 'a( )enerator Speed*e+iation as $1 pu


6/12


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -80

-48

-16

16

48

80


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -60

-26

8

42

76

110

Figure 8: System Response for Contingencies 173, and 17" for S! 'a( )enerator Speed*e+iation as 1 pu

Contingencies 17#, 177, and 179:

These !ontingen!ies is related to tie lines !onne!ting bus =*10010 )%/4-%/7-380> in rea *1" to diAerent areas" rea )#" rea )#" and rea *# res?e!tively. Thesame s!enario is re?eating here" the system res?onse is terminated at early stage"and for that the a@ Generator %?eed eviation was in!reased to 1 ?.u. The systemres?onse for these !ontingen!ies shows that the inse!urity is !aused by threegenerators" as shown in 9igures ," 10" and 11 res?e!tively. These generators are&*1068G/25)4$-2*106,G/25)4$-2*10'0G/25)4$-2


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -1000

11800

24600

37400

50200

63000

Figure 9: System Response for Contingencies 17# for S! 'a( )enerator Speed *e+iationas 1 pu


7/12


Time (sec)

0.000 0.099 0.198 0.297 0.397 0.496 -100

840

1780

2720

3660

4600

Figure 1$: System Response for Contingencies 177 for S! 'a( )enerator Speed *e+iationas 1 pu


Time (sec)

0.000 0.099 0.198 0.297 0.397 0.496 -100

840

1780

2720

3660

4600

Figure 11: System Response for Contingencies 179 for S! 'a( )enerator Speed *e+iationas 1 pu

Contingency 18#:

This fault is ha??ening in a tie line !onne!ting rea *# and rea 33. 9or the normalsettings of T%T related to a@ Generator %?eed eviation settings as 0.1 ?.u" thesystem res?onse was inse!ure" and terminated at early stage for both !ontingen!iesas shown in 9igure 1#" left side. ;ut if this setting was in!reased to 1 ?.u" then thesystem res?onse was se!ure" as shown in 9igure 1#" right sideC


8/12


Time (sec)

0.000 0.041 0.082 0.122 0.163 0.204 -20

6

32

58

84

110


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -60

-26

8

42

76

110

Figure 12: System Response for Contingencies 18# for dierent S! 'a( )enerator Speed*e+iation setting

Contingencies 187, 188, 189, 191, 193, 19", 19#, 196, 197, 198, 213,

and 273:

9or all these !ontingen!ies the simulation terminated dire!tly at the time when thefault a??lied to the system" and T%T indi!ated all these !ontingen!ies as inse!ure.9or investigating the system res?onse after the fault a??lied" the simulation isfor!ed to be advan!ed by in!reasing the a@ Generator %?eed eviation u? to 1 ?.uinstead of 0.1 ?.u" the results are shown in 9igures 13" 1)" 1*" 16" 1'" and 18"res?e!tively. 9or all the mentioned !ontingen!ies" ) generators were !ausing theinstability" these generators are&6#031G/25)7


9/12


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -20

86

192

298

404

510


Time (sec)

0.000 0.037 0.073 0.110 0.147 0.183 -20

168

356

544

732

920

Figure 1": System Response for Contingencies 189, and 191 for S! 'a( )enerator Speed*e+iation as 1 pu


Time (sec)

0.000 0.037 0.073 0.110 0.147 0.183 -20

168

356

544

732

920


Time (sec)

0.000 0.037 0.073 0.110 0.147 0.183 -20

168

356

544

732

920

Figure 1#: System Response for Contingencies 193, and 19" for S! 'a( )enerator Speed*e+iation as 1 pu


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -20

88

196

304

412

520


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -1000

14000

29000

44000

59000

74000

Figure 16: System Response for Contingencies 19#, and 196 for S! 'a( )enerator Speed*e+iation as 1 pu


10/12


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -1000

13600

28200

42800

57400

72000


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -1000

13800

28600

43400

58200

73000

Figure 17: System Response for Contingencies 197, and 198 for S! 'a( )enerator Speed*e+iation as 1 pu


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -20

86

192

298

404

510


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -20

86

192

298

404

510


Contingencies 286, 288, 291, and 3$1:

9or all these !ontingen!ies the simulation terminated dire!tly at the time when thefault a??lied to the system" and T%T indi!ated all these !ontingen!ies as inse!ure.9or investigating the system res?onse after the fault a??lied" the simulation isfor!ed to be advan!ed by in!reasing the a@ Generator %?eed eviation u? to 1 ?.uinstead of 0.1 ?.u" the results are shown in 9igures 1," and #0" res?e!tively. Thesystem res?onse was se!ure for all the !ontingen!ies.


11/12


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -90

-54

-18

18

54

90


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -90

-54

-18

18

54

90



Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -30

-6

18

42

66

90


Time (sec)

0.00 1.00 2.00 3.00 4.00 5.00 -90

-54

-18

18

54

90

Figure 2$: System Response for Contingencies 291, and 3$1 for S! 'a( )enerator Speed*e+iation as 1 pu

Conc%usion

9rom the ?revious results" it !an be said that for all the 380 KV transmission lines"only three !ontingen!ies !an be !onsidered as !riti!al" and it needs moreinvestigations and studies on them. These !ontingen!ies are as follows&133 (81.0#+ #*.86 -nse!ure )K245K$- 380. )#0*11 )##010168 (''.,)+ *,.,8 -nse!ure )V%K 380. *10110 *1)310#,# (81.0#+ #*.86 -nse!ure )K245K$- 380. )#0*11 )#0*10

nother thing to be noti!ed is that for any !ontingen!y that is terminated at earlystage from its simulation" it needs more investigations on it. 9or T%T simulation?rogram" the a@ Generator %?eed eviation setting should be in!reased beyond itsdefault value of 0.1 ?.u to !he!k the se!urity of ea!h of these !ontingen!ies that areterminating in early stage of the simulation.


12/12

380KV Contingency Scan

Documents

Transcript of 380KV Contingency Scan