Maximum Short Circuit Force Calculation of 3-ϕ Induction Motor Using FEM Analysis
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Transcript of Maximum Short Circuit Force Calculation of 3-ϕ Induction Motor Using FEM Analysis
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7/25/2019 Maximum Short Circuit Force Calculation of 3- Induction Motor Using FEM Analysis
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Maximum Short Circuit Force Calculationof 3- Induction Motor Using FEM Analysis
PRESE!E" #$1. Soni Divyangkumar R.(121000109025)
2. Patel Krunal V.(121000109029)
3. Padiyar !mit"in S.(1210001090#3)
#. $amit !n%ali R.(1210001090&2)
%UI"E" #$ Patel Jekisan R. (Ass. Professor)
!EAM I" 30860
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&utline '- #ac(ground Pro)lem Identification &)*ecti+e "esign of Induction Motor
Finite Element Method Exam,les of FEM Analysis or( !ill o.
Conclusion and Future or( References
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#ac(ground Prin'ile
!li'ation
!dvantage"
Simle and rugged de"ign* lo+ 'o"t and lo+ maintenan'e are temain advantage" o, indu'tion motor".
-ndu'tion otor /ommon u"e in -ndu"trial motion 'ontrol "y"tem*
a" +ell a" in main o+ered ome alian'e".
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Pro)lem Identification
le'tromagneti' ,or'e" a't et+een te rotor and "tator +en te
rotor i" er,orming e''entri' motion" +it re"e't to te "tator.
-t i" mandatory tat ,or'e" "ould e re"train to te limit ,or te
rote'tion again"t te de,ormation o, te +inding and te rotor
ar.
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&)*ecti+e
e aim o, ti" ro%e't i" to de"ign te indu'tion motor u"ing
analy"i". -n our ro%e't +e +ill u"e !4SS and !4S6 !78. !t te initial "tage odeling o, -. +ill e 'arried out in atla ,or te
"uitale rating. !t te later "tage te /!D de"ign o, odel +ill e done.
Di,,erent !naly"i" in !n"o,t !78 and !4SS.
1. le'tromagneti' analy"i" : DD analy"i"; or o""e"* lu#
3 8inding a'tor(K+) 0.955
!verage ,lu< den"ity(?av)* 8@m2 0.#5
4 !mere 'ondu'tor"(!') 23000
5 Ratio o, 'ore lengt to ole it'* (@) 1.5
6 /urrent den"ity in "tator 'ondu'tor* !@mm2 #
7 Pit' ,a'tor(K) 1
8 ?ar 'urrent den"ity* !@mm2 A
19 /urrent den"ity in end ring* !@mm2 &
11 Det o, ring(De)* mm 10
12 i'kne"" o, ring(e)* mm &
Sr o/ "escri,tions 0alue
1 ,,i'ien'y(,) >5
2 Po+er ,a'tor(P,) 0.>#
3 8inding a'tor(K+) 0.955
!verage ,lu< den"ity(?av)* 8@m2 0.#5
4 !mere 'ondu'tor"(!') 23000
5 1.5
6 /urrent den"ity in "tator 'ondu'tor* !@mm2 #
7 Pit' ,a'tor(K) 1
8 ?ar 'urrent den"ity* !@mm2 A
19 /urrent den"ity in end ring* !@mm2 &
11 Det o, ring(De)* mm 10
12 i'kne"" o, ring(e)* mm &
Assume data
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In,ut motor s,ecification
Assum,tions li(e' Efficiency : Po.er factor:inding Factor: A+erage flux density: Am,ereconductors: Ratio of core length to ,ole ,itch:
Current density instatorconductor: Pitch factor
Calculation ofMaindimension
Stator design' $o(e : Stator teeth and Stator slot
Rotor design' Rotor slots: Rotor dimensions
E"
"2/; < =>C9/ ns
"o < ?"@2/dss@2/dcs/
lg < B9/2 @2 ?"/;DAirgaplength
"i
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Sr o/ "escri,tions 0alue
1 Diameter o, "tator ore (D)= mm 115.5
2 engt o, "tator ()= mm 13A.0
3 Stator "lot"(S") 32
# Dimen"ion" o, "tator "lot= mm S+t"B10.1252*S+"B12.00A0
5 6uter diameter o, "tator (Do)=mm 201
A !ir ga (lg)* mm 0.#503
& 6uter rotor Diameter(Dr)* mm 11#.3>&1
> 4umer" o, rotor "lot"(Sr) 3#
9 Dimen"ion" o, rotor "lot= mm 8"rB#.3* D"rB9.3
10 -nner diameter o, rotor lamination"(Di)*mm 3>.&>&1
&ut,ut data
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Finite Element Method
i" a numeri'al metod ,or "olving a di,,erential or integral
eCuation. -t a" een alied to a numer o, y"i'al rolem"*
+ere te governing di,,erential eCuation" are availale.
4o+ a day" metod i" "o mu' oular ,or te
ele'tromagneti' de"ign o, any rodu't.
Di,,erent !naly"i" /aaility;
1. agneto"tati' : ddy /urrent !naly"i"
2. le'tro"tati' !naly"i"
3. ermal !naly"i"
#. Stru'tural !naly"i"
5. /omutational luid Dynami'"
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!y,ical FEM Procedure )yCommercial Soft.are
Preprocess
USER-Build a FE model
Solution COMPUTER-Conductnumerical analysis
Postprocess
USER-Seeresults
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Exam,les of FEM Analysis
S(in effect in Ca)le
Proximity effect in Ca)le
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S(in effect in Ca)le
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Proximity effect in Ca)le
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or( !ill o.
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Conclusion and Future or(
Sort /ir'uit or'e /al'ulation y !naly"i".
!naly"i" o, Di,,erent /ara'teri"ti'" gra.
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References1. inite lement or'e /al'ulation in inear -ndu'tion a'ine"E* K.!damik* F. iGia* $.. Da+"on* !.R. a"tam* - R!4S!/-64S 64
!$4-/S* V6. !$23* 46. 5* SP?R 19>&.
2. inite lement or'e /al'ulation o, a inear indu'tion otor aking !''ount
o, te ovementE* DalHo -m* /ango Kim* - R!4S!/-64S 64
!$4-/S* V6. 30* 46. 5*SP?R 199#.
3. or'e /al'ulation in !
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