三相自激異步發(fā)電機暫態(tài)運行性能的研究.pdf

1、青島大學碩士學位論文三相自激異步發(fā)電機暫態(tài)運行性能的研究姓名：馮紹勇申請學位級別：碩士專業(yè)：自動化工程指導教師：吳新振20060522Abs婦ctAbstractThethreephaseinductiOngeneratorischaracterizedwithsimpleconstruction，operatingrcliability，andgooddynamicpefformaⅡceItrepfesentsthedeVeIopme

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3、inductiongeneraCOrafestudiedinthepapefThcparametersofthcmachinearemeasufedbynOloadIcstandshortcircuittestThereIa“onshipbetweentheexcitingcurrentandcorrespondingair—gapvoltageattheratedfrequencyisObtained，thusdetermininge

4、xpr弓ssiOnsforexc“inginductaⅡceandexcitingcutrentinline魚f舍egmeⅡtfotmTheequiValentcircuitsin4蘆0referenceframearebasedonthepar丑metefsbyaboVetestsSimulationandanalysisareperfOfmedtonsdynamicprocessByapplyingthesIationafy口，0r

5、efereⅡcesystemtotheinductiongenerator，asetofdiffercnIialequationsbasedOnbasicclectromagncliclawsiscstabIishedWjthconsiderationofthemagnetizinginductanceinfluencedbythemagnc“zingcurrents，thevafying—coefficientdiffe托ntiale

6、quatioⅡsarcsolVcdbythenumeficalmethodThcc童lc醢l(fā)Atedfes掛llssh口w￡hatthebuilduPVolt矗geisi矗cfetsedndtf矗A0ie疊^ProcessisdecreasedwiththeincreaseofcapacitanceThesimul丑tionrcsultsafeingoodagreementwiththeexpefimeⅡtalfesults，which

7、VerifythecofrectncssofthepreseⅡtedme瞳0dDynamicperformancesduringsuddenchangesinlOadareanalyzedandsimulatedItenlphasizesontheprocessesofthreeph童sesuddenshortcircuitinmachine’sterminalandself—excitationcapacilorswitchingof

8、fThecffecloftheinstantatwhich￡heinducCiongenera￡orisshortcircu“edonthcmaximumcurfenti皇showedThecomparisoⅡbetweenthesimulationrcsultsandexPefimentalresultsismadeaⅡdthevalid“yofthesimulatiOnmethodsisconfirmedKeywords：three