基于時(shí)域仿真的快速暫態(tài)穩(wěn)定定量分析.pdf

1、東南大學(xué)碩士學(xué)位論文基于時(shí)域仿真的快速暫態(tài)穩(wěn)定定量分析姓名：惠海龍申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：電力系統(tǒng)及其自動(dòng)化指導(dǎo)教師：萬(wàn)秋蘭2002.3.1爾南人乍頌l‘學(xué)化淪殳ABSTRACTABSTRACTTransientstabilityanalysis(TSA)isalwaysaveryimportantsubjectinpowersystemsecurityassessmentTimedomainsimulation(TDS)andthed

2、irectmethodaretwomainmethodsofpowersystemtransientstabilityanalysisTDShaswidemodeladaptabilityandisveryaccurate，SOitiswidelyusedanditsresultsareusuallyregardedasthecriterionButTDSisslowandcannotdeterminethestabilitymargi

3、nThedirectmethodisnotaccurateenough，butitisfastandcanquantifythestabilitymarginBasedontimedomainsimulation，thispaperpresentsafastandquantitativeTSAmethodwhichcombinesthedesirablefeaturesofthetwomethodsThispaperproposesaf

4、astcriterionwhichcanfastdeterminethemulti—machinepowersystemstabilityandendthenumericalintegrationBasedonthetrajectorydataproducedfromnumericalintegrationandtheconceptoftrajectorytransientenergyfunction，thispapersetsupat

5、ransientstabilityindexSliandaninstabilityindexUlitoquantifythesystemstabilityThefastTSAmethodcancalculatetheexactcriticalclearingtime(CCT)quicklythroughcalculatingthefaultlastingtrajectorytoavoidthenumericalintegrationbe

6、forefaultclearingtimeineverystepoftheprocessofiterationandapplyingthegoldenbisectionmethod(orthebisectionmethod)toreducethetimesofiterationTheproposedmethodissuccessfullyappliedtothetestsystemof6machinesand22busesforanum

7、beroffaultconditions，ThesimulationteNultsshowthattheproposedTSAmethodisfastandaccurateandthatthesetwoindexesarerafionalandeffectiveKeywords：TransientstabilityTimedomainsimulation，theDirectmethod，Trajectoryanalysismethod，