振荡冲击波发生电路的设计及其参数选取

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,,,(710049):。:;;:TM406:B:1001-8425(2010)S0-0005-04DesignandParametersSelectionofOscillatingImpulseVoltageGeneratorCircuitGUOZhi-feng,ZHAOXue-feng,GUChao-min,LIYan-ming(Xi'anJiaotongUniversity,Xi'an710049,China)Abstract:ThemethodofproducingOIVwaveformbynumericalequivalentcircuitisintro-duced.Keywords:Oscillatingimpulsevoltage;Simulation;Circuitdesign1、GIS。、,,,。,。[1],,,。,,。[2],,、,。、,IEC60060-3(OscillatingImpulseVoltage,OIV),OIV。,,MULTISIM,IEC。,,。2OIV(OscillatingLightingim-pulse,OLI)(OscillatingSwitchingim-pulse,OSI)。IEC60060-3,,1。1,Tf、Ttf、。1Table1ParametersofstandardoscillatingimpulsewaveformOLIOSITf/μs0.8~2020~400Tt/μs40~1001000~4000f/kHz15~4001~15TRANSFORMER478s20108Vol.47AugustNo.8s2010471,OIV,1。T、D1D2,r、C1C2,,g,,Rf、LRt,。32。,r。2,RtRf,,,(3)。3,C=C0C2/(C0+C2),R=r+Rf。,3,,R<<2L/C姨。C2U1,U2:u2(t)=U[1-(ω0/ω)exp(-αt)sin(ωt+φ)](1),U=C2U1/(C2+C0),α=R/(2L),ω0=1/(LC)1/2,ω=(ω20-α2)1/2,φ=arctan(ω/α)。,u2(t),du2(t)/dt=0,:ωt=nπ+arctan(ω/α)-φ(2)(2),t=π/ω,:Tf=π/ω=π/(ω20-α2)1/2(3)R<<2L/C姨,ω≈ω0,,Tf=π/ω=π/(ω20-α2)1/2≈πLC姨(4):U2max=U[1+exp(-αTf)](5)f:f=(ω20-α2)1/2/(2π)≈1/2πL/C姨(6)η:η=U2max/U1=C1C1+C2[1+exp(-αTf)](7),。:u(t)=2CU1[1+exp(-R′/2L)Tf]·exp[-t/R′(C2+C0)](8)R′=Rt+Rf+r(8)Tt,u(Tt)=12umax,:Tt≈0.25R′(C2+C0)(9)Tf、Tt、fη。(3)、(6)、(7)(9),;;、。,,,。4MATLAB-SimulinkC2=0.011μF,C0=gLRfRtU2U1C0C2r2Fig.2EquivalentcircuitdiagramofoscillatingimpulsevoltagegeneratorU1U2C2C0LRfrFig.3Equivalentcircuitdiagramoffronttimecalculation31Fig.1DiagramofoscillatingimpulsevoltagegeneratorT—;r—;C1、C2—;D1、D2—;g—;Rf—;Rt—;L—;C0—。D1gRfRtC1C2rTC0D2L6、、8s1500pF,1、,(a)、(b)、(c)、(d)。(3)、(6)(9),2。2,OLI(a)1/50μs,f=370kHz,OLI(b)20/100μs,f=16kHz,OSI(c)20/1000μs,f=15kHz,OSI(d)400/4000μs,f=1250Hz。matlab-simulink,4Runge-Kut-ta,4,。4:(1)、,IEC60060-3。(2)C2C0,(3)、(6)、(9),,,。(3),4d,,。50.011μFC20.0015μFC0,1/50μs,f=370kHz(OLI)20/1000μs,f=15kHz(OSI)。(1)OLI。1。Rf=30Ω、Rt=16.6kΩ,L=0.14mH,,。5(OLI)。Tf=1.2μs,20%,Tt=55μs,10%,f=370kHz,,IEC60060-32Table2ParametervaluesofwaveformOLI(a)OLI(b)OSI(c)OSI(d)L/mH0.147585.312281(Rf+r)/kΩ0.032330Rt/kΩ16.631.3300125010.90.80.70.60.20.50.30.100.40.20.40.60.811.2Ut/s(b)×10-410.90.80.70.60.20.50.30.100.40.10.20.30.40.50.60.70.80.91t/sU(a)×10-410.90.80.70.60.20.50.30.100.4U0.50.611.5×10-3t/s(c)10.90.80.70.60.20.50.30.100.4U0.511.522.533.54t/s(d)4Fig.4Waveformsofoscillatingimpulsevoltage747。(2)OSI。1。Rf=3kΩ、Rt=300kΩ,L=85.3mH,,。(OSI)6。Tf=21μs,10%,Tt=980μs,2%,f=15kHz,,IEC60060-3。6Tf、TtfL、C2C0,。,OIVIEC60060-3,;,OIV;,。:[1]IEC60060-3,Highvoltagetesttechniquespart3:defi-nitionsandrequirementsforon-sitetests[S].[2].GIS[J].,1992,66(4):57-60.[3],.[J].,1990,12(3):41-45.[4]MatsumotoS,MemberS.Analysisandevaluationofwave-formparametersforoscillatingimpulsevoltage[J].IEEETrans.Elect.&Electro.Eng.2007,(2):651-656.[5],.[J].,1996,22(1):89-91.[6].[M].:,2006.[7].[J].,2000,17(3):13-15.[8],,.[J].,2007,22(5):6-12.[9],,,Matlab[J].,2005,24(9):51-53.[10],,.[M].:,2003.[11].[M].:,1996.[12].MATLAB6.5[M].:,2003.201510500102030405060U/kVT/μs5OLIFig.5WaveformofOLI151050020040060080010001200T/μsU/kV6OSIFig.6WaveformofOSI:2009-11-24:(1985-),,,,。!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!“”,“”,110kV2005,。,。8

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