链式SVG在冶金类电力负荷中的应用

SVG*邱文涛(,650093):SVG,(StaticVarGenerator,SVG),SVG:STATCOM;SVG;;:TM714:A:1006-0308(2010)03-0070-06ApplicationofChainSVGinMetallurgicalIndustrysElectricalLoadQIUWen-tao(KunmingYeyanNew-MaterialCo.,Ltd.,Kunming,Yunnan650031,China)ABSTRACT:ThebasicprinciplesandperformancefeaturesoftheStaticSynchronousCompensator(STATCOM)(anothernameistheStaticVarGenerator(SVG))wereintroduced,andcomparisonbetweenSVGandotherreactivepowercompensationdeviceswascarriedou.tBasedontha,ttakingtheapplicationofSVGinametallurgicalenterpriseforanexample,theSVGsfunctionsanditscomprehensivecompensationeffectingoverningelectricalenergyqualitywerepresented.KEYWORDS:StaticSynchronousCompensator(STATCOM);StaticVarGenerator(SVG);reactivepowercompensation;electricalenergyquality1SVG(staticsynchronouscompensator,STATCOM,StaticVarGenerator,SVG),1,4NSVGSVG,SVG:1)SVG,,,;2),,;3)1~2,;4),(SVC),,99.2%;5),,;6)SVG,SVG,,:7020106393(222)YUNNANMETALLURGYJun.2010Vol39.No3(Sum222)*:2010-04-19:(1972-),,,(Y);1SVGFig1SchematicdiagramofchainSVGssingle-phasebridgearm!PWM,;∀;#;∃,,3~35kVSVG210kV/8MVASVGFig2Appearanceof10kV/8MVAchainSVGinadomesticElectrical&ElectronicsCompanySVG3:,11SVGTab1SVGsoperationmodedescription,,,,;,,,0,,2SVGSVC3:(SVC)SVG,,(SVC),TCRTSC,,,,:1),,;2)TCR,,TSC,TCR,,;3),2~3,;4),SVGSVC,71SVG3kV~35kVSVG(QNSVG),,:1)QNSVG,;2)QNSVG,;3)QNSVG10ms,,80%,20ms10ms,17%50%SVC40~60ms()4)QNSVG(,),(),QNSVG,;SVC,5)QNSVG,,SVC,SVC1/5~1/3,QNSVG6)QNSVGIGBT,1~35kV,,99%;SVC(SVC),QNSVGSVC1/3~1/2,SVC30~100MvarSVCSVG,4,0~100MvarSVC100Mvar0~100MvarTCR,100Mvar,(1%)0~100MvarSVG50Mvar%50MvarSVG,%50MvarSVG-50Mvar+50Mvar(50Mvar065%),,03%,50Mvar0~50%,0~100MvarSVG0~100MvarSVC7220106393(222)YUNNANMETALLURGYJun.2010Vol39.No3(Sum222)7)QNSVG,,20%,;SVC,QNSVGSVC20%~30%,SVC260Mvar,SVG200Mvar5QNSVGSVCFig5ComparisonofcompensationabilitybetweenQNSVGandSVG8)QNSVGN+1N+2,();,QNSVG,SVC;SVC,,SVC,SVGSVG9),!,,,∀,,,73SVG6QNSVGFig6QNSVGsOutputcharacteristicswhensinglephaseshortcircuitoccurs#∃,;,,,&,,,,,3SVG310kV3,086,102Mvar,7SVGFig7MixedstyleSVGscompensationscheme10kV,37,SVG,SVG%4M,4FC,FC2MvarFC,;SVG,,;,SVGSVGSVGFC8FCFC,8SVGFCFig8MixedcontrollogicofSVGandFCSVG,9QNSVG,,+1Mvar~-1Mvar,-1Mvar~+1Mvar,5msSVG,FC,,SVG,10Ch1,Ch2SVG,Math10(a),571113,10(b),SVG,5711137420106393(222)YUNNANMETALLURGYJun.2010Vol39.No3(Sum222)4SVCSVG,SVGFC,SVG,FC,:[1],.[M].:,2006.[2].[M].:,2003.[3].[M].:,2001.75SVG