发电机惯性时间常数对电网动态频率的影响

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:(1982-),,,.:1674-0076(2007)06-0050-041,2,3,2(11,710061;21,710049;31,132012):PSASP,PSASP.,,,.:;;;;:TM3:AEffectsofgeneratorinertialtimeconstantonthedynamicfrequencyofthepowersystemHANYu2lan1,ZHAOJin2quan2,LUXing3,WANGCheng2gen4(11XianInstituteofPostandTelecommunications,Xian710061,China;21XianJiaotongUniversity,Xian710049,China;31NortheastDianliUniversity,Jilin132012,China)Abstract:ThepapersimulatesthedynamicfrequencyofafactualpowernetworkinactivepowertrippingstatusbymeansofPSASPandpointsoutthattheinertialtimeconstantofgeneratormodelsinPSASPissmallerthantheoneinfactualpowernetworks1ItalsoanalyzestheeffectsofgeneratorinertialtimeconstantonthedynamicfrequencyofthepowersystembyalteringtheformerinPSASPandmapsoutthesimulationcurvesofthedy2namicfrequencyinagreementwiththatofthefactualpowernetworks.Keywords:generator;dynamicfrequency;simulation;powernetwork;inertialtimeconstant0,,.,.,,[1].(PSASP),,SCADA.,.1,.,,.266200712JournalofNanchangInstituteofTechnologyVol126No16Dec12007©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=-PDTjGdPGdt+PG=-KGfPL=-KLfPD=PL-PG+PD0,(1)KL,KG,TjS,PD0=PL0-PG0.(1)f(t)=PD0KS(1+2Ame-tcos(t+)),(2)=12(1TjG+1Tf);Am=12TjSKSKG;=KGTjSTjG-2;=arctan(1(KSTjS-)).1)(1)KLKGTjSTjG;(2)KLKG,TjSTjG;(3),TjS.,..,,,,.2)(1);(2);(3),,,,;(4),D,KG,.2,.,.,A,450MW.BSCADA.PSASP,.,A,.PSASP.211PSASPPSASP,1.1156,:©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.((UFLS)),.,.TjG,.2212,2.2.PSASP,8851005s,14401583s.2.,1,34.2,,:;;;,.:;;;.,.,,,,.,,.,,,,.(1)1,,,.,.3,,:,,.,,.,.2,.,.2133,2,115.,.,,.3:,;,252007©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.:,;;;,.4PSASP.,,,,;,,;,PSASP,,,,PSASP.,PSASP.,,PSASP,.,,.4,115.3PSASP,.,:(1),,.(2),,.(3),,.(4)PSASP,.:[1],.[J].,1994,18(3):35-38.[2].[D].:,1998.[3].[M].:,2002.[4].[J].,1997,21(8):4-6.[5].[J].,1999,11(5-6):13-17.356,: