1、第 17卷第 1期 湖 北 工 学 院 学 报 2002年 3月Vol.17No.1 Journal ofHubei PolytechnicUniversity Mar.2002 l 2001- 11- 26Te (1962- ), 3,q , =,Z_: “d#9 e.cI|1003- 4684(2002)03-0047-03MM HE FY刘 辉,张 勇,李新华(湖北工学院电气工程与计算机科学系,湖北武汉 430068)K 1 MM ME H FY, M/M HE F E9 ZE,) MKvH qH wLW1“.1oMM;M ; HE Fms | TM41 DS M : AHE F M T
2、r B .M MH wLdL,+,B f / HE Fi B,7 BdL . Y M -/5, j HE F ,“ VL s9 .iBM, HM1 v.M|MM MH , HE F9? 3M.9 , ?-/ HE F 9 MM 5. *,M, HE Fvl| M, ZE9 MM HE F,MKvH qH wLW1“ ?t5TB).1 M HE FYM HE FZm MEXm H FX m ,/ sY) M Y.1.1 H FXmH FXm = kLm(k q,LmH)./ s, qM,I nM M.“Xm VLm.M MH wLB-H#H q wL_-H m1 U1. s M M ,i P z
3、 ?, !9Y PMTH wL(m1N),N HM H BN BQ-M,H q_n. ,M -H HLmN = mN N21(N1M BQF , mNMH),H mN =_n S /L(SM MH ,LM (,H q_n = BN /HN ).m1 M MH wLI nM. 6, PM MTH wLM,M t_,Hq/_m,7 mM mN ,LmK LmN , “/, Hv 6;+Y,M MTH wLL H,H qrKv_g= _max,H mL#HLmLrKv.1.2 MERmRmQ M MM,H .MH wLdL1“,PM b I01HY 9F y,7 U11,#I01U19F y,yN,
4、Rm“ 9F7hl2.m2 M b I0、 b p0 U1W1“wL.m2 I0、p0U11“ wL2 M/ HE F9 ZEp 9 M 5ZE.T ,M B、=Q PE F V A ,7 HE F5M1.yN,M/M 59 1o HE F./ MERm H FXm EE3. EE |BFXV b L wL E,w T, t T9 RmXmBZE. /:B,5SM b L, U1M b p0 bI0;=, T EZE,sY| bp0、 b I0 U11“ Ef ; ,MS = U1, f pp0I0,9 |Zm|= U1/I0Rm= p0/I20,7 pXm = |Zm|2 - R2m .CB
5、 - SN = 4kVA,-U1N /U2N = 380/220V,/Y MM , EE9 / HE F.SM b L,M BQ,- 、/BF ,nV1.V1 M b LT(BM)BQS b /A b /W1.15 0.512 24.41.10 0.419 21.41.05 0.347 19.31.00 0.272 17.10.95 0.212 15.20.90 0.158 13.00.85 0.114 12.00.80 0.084 10.6 V ,Kl=E 1 p= E3,M b #b Ef /10I0= 0.561U21+ 11.349U1 - 8.961, (1)p0= 48.829U2
6、1- 56.072U1+ 24.238. (2)T, U1V UM BQS,I0 L= b ( 4 E, |I0 v10),p0V U b L=.V2“ LE” V1 LT9 HE H,“ EE” T(1)、(2) Ef 9 ME H.V2 EE LE9 HE FT1 BQSMERm / HXm /EE LE EE LE1.15 100 93 995 8481.10 123 122 1013 9901.05 155 158 1106 11391.00 198 231 1219 13780.95 279 338 1442 16690.90 450 521 1820 21010.85 946 92
7、3 2799 2679V V LET V A, T- I n10%M,M ME H F9BM, VnM HE FY Mv.m3、4sY LE EE 9 MERm、 H FXmM BQU1W1“ wL4, m Ef HE F wL LT HE F wL1 L,V M HE F E E .m3 RmU1 (S)1“ wL+ LE; - EEm4 XmU1 (S)1“ wL+ LE; - EE1 ,5M HE F E E Ef b LT,B 48 湖 北 工 学 院 学 报 2002年第 1期 Ef ,MS =,L V Ef pM/ HE F,9 M HE F E EKv.3 KvH qH wL1“
8、 - , s M M ,i P z ?, !9 Y PMTH wL(m1N); 6BZ , hl H ,9v H, PM KvH q(m1g)./ sMH q |Hq.!M MH wL = Ef H = aB2+ bB+ c, (3)|_ = B /H (3) T, | s,d_dH =1- 2a_2H - b_2a_ H2+ b H . (4)7d_dH = 0,i I n_= B /H,5_ |HYBL = (b b2+ ac) /a. (5) T,B: a 0,c 0,5b2+ ac b,BL,# T - |.D24A H wL Ef : H= 912.35B2- 2700B+ 2013
9、.5,|“ a、b、c (5) T,BL= 0.352(T).BM MH wLH BN = 1.7(T)P,BLlBN . V ,MH q |v H,H wLT, ;,MH wLT H,H qKvH q.,B I nM s ,PMTH wL,“,MH qKvH q.4 1) M - H, TBQ/, ME H F9v,Q, TBQ 6, ME H Fhl.2) y M b L$ HE FE E,MS =, V Ef pB/ HE F,ZEe,l, V P.3) M MTH wL H,MH qKvH q,MH q |v H,H wLT . I D 1 , , ?Z.( )M.:l jv, 1987.2 Lc.(3)M.:, 1993.3 B?Z.9 ZEM.q:qv,1997.4 L ?, , . MATLAB !9M.:0 S/v, 1999.ResearchonInfluences of VoltageVariationonExcitationImpedanceof Power TransformerLIUhui, ZHANG Yong,LIXin-hua(Dep. of Electric Engin. powertransformer; excitationimpedance3 I :fY49 第 17卷第 1期 刘 辉等 电压变化对变压器励磁阻抗的影响
