500kV同塔双回线路感应电压_电流计算及实测_郭志红

500kV、郭志红1,姚金霞1,程学启2,朱振华1(1.山东电力研究院,济南250002;2.山东电力集团公司,济南250002)　:EMTP500kV--,。(、)500kV。500kV。:;;;;:TM726.1:A:1003-6520(2006)05-0011-04StudyandMeasurementofInducedVoltageandCurrentfor500kVDouble-circuitLineonSameTowerGUOZhihong1,YAOJinxia1,CHENGXueqi2,ZHUZhenhua1(1.ShandongElectricPowerInstitute,Jinan250002,China;2.ShandongElectricPowerGroupCorporation,Jinan250002,China)Abstract:InthispapertheinducedvoltageandcurrentarecalculatedbyEMTPmodelingcalculationforthetrans-missionprojectof500kVZi-Qing-Weidoublecircuittransmissionline,.Throughthesystemtestingbeforeopera-tiontheinducedvoltageandcurrentaremeasuredtovalidatetheresultsofcalculationbeforetheconstruction.Thegeneralcharacteristicofinducedvoltagefor500kVtransmissionlineisgivenbycalculatinginducedvoltageandcur-rentofothertypicaltowerofdoublecircuittransmissionline.Itisprovedthattheinducedvoltageoflineisvariedwiththelengthandloadoftheline,thatisoneof500kVdoublecircuittransmissionline,whenitisnotcompensa-tedwithhighvoltagereactance.Thestaticelectricinducedcurrentisproportionaltolengthofthedoublecircuittransmissionlineandthestaticelectricinducedvoltagevarieswiththelengthofthedoublecircuittransmissionline.Theelectromagnetisminducedvoltageisproportionaltoload.Keywords:double-circuitlineonsametower;staticelectricinduction;electromagnetisminduction;modelingcalcu-lation;commissioningmeasurement0　　,,,[1],,、,、。、(Us、Is)、(Uem、Iem),,、、、。EMTP[2],500kV--,、、500kV,,[3,4]。1　--、500kV--(1)4,-80.753km,-66.252km。4×LGJ-400/35,[5],450mm,。1　Fig.1　Structureofdoublecircuitlineonsametower11　　3252006　　5　　　　HighVoltageEngineeringVol.32No.5May.　2006DOI牶牨牥牣牨牫牫牫牰牤j牣牨牥牥牫牠牰牭牪牥牣hve牣牪牥牥牰牣牥牭牣牥牥牬[6],I510kV(),632MW+j65MVA。I510kV(),1170MW+j88MVA。1.1Ⅱ、ⅡI、I,Ⅱ、ⅡUem、Is,、。Ⅱ、ⅡIem,。Ⅱ、ⅡUs,。1、2,2。1　Ⅱ、Tab.1　InducedvoltageandcurrentofYi—Wei2ABCIem/AIs/AUem/kVUs/kV67.360.417.967.653.524.361.255.19.665.855.825.77.24.70.957.34.61.961.291.250.2851.670.940.8829.0514.154.9030.1115.868.2129.013.95.129.5116.707.372　Ⅱ、Tab.2　InducedvoltageandcurrentofYi—Chuan2ABCIem/AIs/AUem/kVUs/kV109.9123.618.998.3121.423.6105.0121.018.097.1121.421.38.35.20.898.885.782.372.6253.680.851.854.501.3528.9517.04.0529.9815.828.028.215.84.129.8916.417.88:B52V,4.9A。,I(1170MW),Ⅱ130A,4kV;10A,30kV,。I(632MW),Ⅱ70A,2kV;10A,30kV,。Ⅰ,Ⅱ,Ⅱ52V,5A。。2　Ⅱ()、Ⅱ()Fig.2　StaticelectricinducedvoltageofYi—Wei2andYi—Chuan21.2500kV,500kV,,。,,。Us,,10～100km,Us10kV(3)。500kV,,,Us。Us,30kV。,15kV。,8kV,,。3　500kVFig.3　Relationshipofstaticelectricinducedvoltageandlengthof500kVlinewithoutreactorcompensationandtranspositionUs。,500kV10kmB(Us30kV)。,10km,A(Us=25kV)。,Isl,[7,8]。l10km100km,Is2A12A。Is12May.2006High　Voltage　EngineeringVol.32No.5　,,。500kV10km,B(Is25A)。,0.5km,A(Is=1.6A)。,。、,、,,(2000MW)。2　500kV500kV,500kV,、[9],[10-16]。-、-、—、-、-、—500kV。2.1　-100km,,:SZT-40,1km,ZB-40,40km,60m。--7.5km,LGJ-4×400/35,GJ-80,OPGW。20km1000Ψm,500Ψm。—146km,25%,,SCZ-51(1)。,6,6×LGJ-240/30,LGJ-95/55,,6.7m,1.08cm,,37.5cm。(B)20m,(A、C),A,26m,40m。100Ψm。,,-97.8km,-99km,-92km,—82km。---,500kV,118km、70km、30km,20km、1.5km。:、II,V,III60m,LGJ-4×400/35,GJ-80,OPGW。100Ψm。2.2(,)3,()4,(,、)5。3　Tab.3　InductancevoltagekVABCABC1-20053.651.681.823.591.781.722—3—4—5—6—7—8—9—2005400Ψ2005800Ψ200530km201020159km2005200520052005393.04402.48384.9947.2231.5822.9244.2638.8021.2144.1328.2025.2243.4927.8624.899.9016.4024.367.6717.3426.763.836.382.562.573.836.384.406.992.664.486.973.525.3710.1210.5810.0719.3128.7723.513.9215.7023.493.3615.68397.60406.99389.3547.6431.8823.1144.7439.2721.3943.7227.9524.9643.3927.8824.839.8716.5724.377.6717.0926.561.854.090.850.861.874.102.654.502.343.415.063.495.998.548.896.132.811.2213　20065　　　　3254　Tab.4　InductancecurrentAABCABC1-20054.289.311.043.929.070.912—3—4—5—6—7—8—9—201020159km200520052005200511.493.861.2124.987.443.305.3716.9211.943.1514.4314.0421.9052.2015.1815.6122.5353.4221.0546.6620.9830.4471.5230.3119.1858.6344.802.604.7010.861.050.861.141.201.100.8611.972.522.2825.075.994.306.7410.373.201.607.714.6522.7853.9315.4915.1021.9052.3122.9452.4619.9828.1664.9333.1119.6455.6345.791.944.919.425　Tab.5　InducedcurrentAABCABC1-20051.220.310.421.240.480.452—3—4—5—6—7—8—9—201020159km20052005200520055.472.151.245.392.111.244.308.6510.183.838.9811.000.872.060.610.750.942.171.43.011.470.971.791.121.021.431.510.3871.734.620.1480.0210.1610.1570.01480.1635.552.191.265.502.131.254.478.6410.193.828.5011.260.44-1.35-0.200.330.531.490.881.981.280.761.311.292.482.712.072.110.601.228　　-7kV,3A,-8kV,4A,-#1、#27kV、11kV,2A3A,-30kV(),、5A、3A。-26.7kV,11A。-4kV,1.3A。-47.7kV,6A。3　a)500kV,,,,。b)500kV,,。c)500kV,。1.6。(50)14May.2006High　Voltage　EngineeringVol.32No.5　3　　TomaChan,14mm,1SF6,20nH、0.1Ψ。(4),4,。,,、,。4　Fig.4　WaveformofvoltageandcurrentofdiodeTomaChan,,、;,,,。,。[1],,　,.—[J].,1998,16(1):72-74.[2].[D].:,2004.[3]　.[D].:,2005.[4],,.[J].,1997,21(4):317-320.[5].[M].:,2003.[6]LiuLie.Fabricationofcarbonfibercathodeforhigh-powermicrowave(HPM)applications[J].IEEETransonPlasmaSci,2004,32(4):1742-1746.[7]　,　,,.[J].,2005,17(11):1721-1723.[8]　,,.—-[J].,1993(8):41-43.[9],　,.[J].,2002,28(12):30.[10]　,,.[J].,2004,16(6):781.[11]　,,　.[J].,