电力系统低频振荡的原因与对策

21JournalofGuangdongTechnicalCollegeofWaterVol.2No.120043ResourcesandElectricEngineeringMar.2004(,430072;,510635):;,:;;;:TM761+.11:A:1672-2841(2004)01-0025-03:2003211221:,,0,,,,,,,,0.22.5Hz,,,,MAPP19841,,:1.1F.P.DeMello1969,,,,,,;,1.2,EFifif,,,,EF,EFife,1.3,,,,,,,,,1.4,,;,;©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,,,1.5,if,,if,,,,,,,UGf,,,,,,2,,,,PID(PSS)(LOEC)2080,,(NEC),PSSPID,PSS,,,PSS2070,PSS-,PSS,-,PSS,PSS1980PSS,PSSPSS,PSS,PSS,LOECNEC,PSS,PSS,,,PSS,,PSS,,,PSS,,,,PSS,,-,,PSS,,,,PSS:PSS;PSSPSS,PSS,,PSSPSS,LOECNEC,LOECNECLOECPIDPSSNEC,,LOECNECAVR+PSS,(SVC)(HVDC)(FACTS),,,,3,,622©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.:[1].(PSS).,1994.3[2].[M].,1985[3],..,1999.3:4-7[4],,..,2002.22(2):21-25[5].(PSS).,2002.40(2):8-11CausesandCountermeasuresofLowFrequencyOscillationinPowerSystemWANGMin(ElectricEnginneringcollegeofWuhanUniversity,WuhanHubei,430072,China)(GuangdongTechnicalCollegeofWaterResourcesandElectricEngineering,GuangzhouGuangdong,510635,China)Abstract:Somecausesforthelowfrequencyoscillationinpowersystem,suchaslackofdamping,theelectromagnetisminertiaofgenerator,excessivelysensitiveexcitationregulation,nonlinearsingularityphenomenon,andimpropercontrolmethod,areanalyzed.Somecountermeasuresagainstthelowfrequencyoscillationaimedattheexcitationsystemstabilitycontrolaredemonstratedespeciallyandcomparedbasedonthesecauses.Keywords:lowfrequencyoscillation;powersystemstabilizer(PSS);linearoptimalexcitationcontrol(LOEC);nonlin2earexcitationcontroller(NEC),,,()():12634;55107,,,,20002003,,186.46120,306.46,,,:::020-38490909E-mail:[e-mail]721:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.