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1、合肥工業(yè)大學碩士學位論文模糊控制技術在直接轉矩控制中的應用及其仿真研究姓名：張春申請學位級別：碩士專業(yè)：計算機應用技術指導教師：楊善林20030701TheApplicationandSimulationofDirectTorqueControlSystemBasedontheFuzzyControlAbstractThispaperdiscussesthedevelopmentstateinthelateyears，someproblemsincludingseveralkeyproblemsinthelowfrequencyfieldarea
2、nalyzedandinvestigated．Basedonthedevelopmenttendencyofdirecttorquecontrolinthefuture，themaincontentofinvestigatingisproposedinthepaper．Bypresentingthemulti·variablemathematicmodelandthechangeofaxisoftheasynchronousmotorandanalyzingtheprincipleofthedirecttorquecontrolsystem，an
3、ovelstructureoffuzzydirecttorquecontrolforinductionmotorwithfuzzystatorresistanceestimatorisproposed．Fuzzylogicisusedforestimatingthestatorresistanceandchoosingtheswitchingstate，whichcanimprovetheperformanceatlowspeedsandtheresponseofthesystem．Thispaperalsointroducesthemethod
4、sofdesignandsimulationoffuzzydirecttorquecontroIsystemandthesimulatingmodelisbuildbasedonMATLAB／SIMULINK．ThedesignandsimulationoffuzzydirecttorquecontrolsystemisfinishedthroughcompilingsuitableS-functionwhichcancombineSIMULlNKwithMATLABeffectivelyandusethepowersystemblocksetw
5、hichcansimplifythesimulationmodeloftheasynchronousmotor,somesimulationresultwhichisapproximatetothetheoryanalysisispresentedtodemonstratethismodelistrue．Byusingthefuzzycontrol，thestatorresistancerecognizerandfuzzycontrollerisproposedmainlytoimprovetheperformanceatlowspeedsand
6、theresponseofthesystemandoptimizethechooseprecisionofthevoltagevector,thesystemcanbeoperatedwithgooddynamicandstaticcharacter．AlsothispaperintroduceshowtodesignafuzzycontrollerwithMATLABfuzzycontroltoolbox，andhowtosimulateandanalyzetheeffectsofitwithSIMULINKandSfunction，which
7、hastheadvantagetouseinthescienceresearchandengineerapplication．Keywords：asynchronousmotorMATLAB／SIMULINK：fuzzycontrol：directtorquecontrolsimulation獨創(chuàng)性聲明本人聲明所里交的學位論文是本人在導師指導下進行的研究工作及取得的研究成果。據我所知，除了文中特別加以標注和致駙的地方外，論文中不包含其他人已經發(fā)表或撰寫過的研究成果，也不包含為獲得金目B』、業(yè)盔堂或其他教育機構的學位或證書而使用過的材料。與我一同工
8、作的同志對本研究所做的任何貢獻均已在論文中作了明確的說明并表示謝意。學位論文作者簽名哆雪簽字日期：石扔年7月，日學位論文版權使用授權書本
