基于同軸雙饋電機(jī)抑制次同步諧振的仿真研究

1、北京交通大學(xué)碩士學(xué)位論文基于同軸雙饋電機(jī)抑制次同步諧振的仿真研究姓名：徐金鳳申請學(xué)位級別：碩士專業(yè)：電氣工程指導(dǎo)教師：王小君；宋瑞華201206ABSTRACTABSTRACT：ConstructionoflargecapacitysteamturbinegeneratorunitsandtransmissionsystemwithahighlevelofseriescompensationisanobjectivedemandofCh

2、ina’Spowerindustrydevelopment，usingseriescapacitorcompensationisaneffectivemethodtoimprovetransmissionlinecapacitycontrolthepowerdistributionbetweentheparallellinesandenhancepowersystemtransientstabilitybutseriescapacito

3、rcompensationmaybecausedthecouplinginteractionbetweentheturbinegeneratorshaftandthetransmissionnetwork，resultinginsubsynchronousresonanceproblemTherefore，theresearchsubsynchronousresonancesuppressionmeasuresareofgreatsig

4、nificanceThisthesiswilltakesubsynchronousresonancesuppressionmeasuresasbasicresearchcontents，mainlyusesthetimedomainsimulationmethodbasedonPSCAD／EMTDCtoestablishthesystemsimulationmodel；proposedapplicationofcoaxialdouble

5、fedmotorsuppressionmethodofpowersystemsubsynchronousresonance，inordertoachievethegoalthatthecoaxialdoublefedmotorcaneffectivelyinhibitsubsynchronousresonancewhentheunitindifferentoperatingconditionsSteamturbinegenerator、

6、塒t11doublefedmotorshaftcoaxialisthefoundationtealizedoublefedmotorsuppressionsubsynchronousresonance，forthequestionthatPSCAD／EMTDCcomponentlibrarycomeswithashaftmodelisunabletorealizethecoaxialshafting，throughthesimulati

7、oncontrastiveanalysis，usingtheFortranprogramminglanguagetoestablishthecoaxialshaftmodelThroughthethoroughanalysisoftheoperationstatusafterthecoaxialdoublefedmotoraccesssystemtOclarifythebasicprinciplesthatthecoaxialdoubl

8、efedmotorinhibitionofthesubsynchronousresonanceBasedonthedoublyfedmotormathematicalmodelanditsstatorandrotorsideconvenercontrolprinciple，establishedthedoublefedmotor’SstatorsideandtherotorsideconvertercontrolsysteminPSCA

9、D／EMTDC，achievingtherespectivecontrolobjectiveThisthesisfurtherfocusesontheprocessofasupplementarysubsynchronousdampingcontrolstrategyandpointsoutthatsupplementarysubsynchronousdampingcontrolstrategyisakeyfactorofthedoub