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1、合肥工業(yè)大學(xué)碩士學(xué)位論文模糊控制技術(shù)在直接轉(zhuǎn)矩控制中的應(yīng)用及其仿真研究姓名:張春申請(qǐng)學(xué)位級(jí)別:碩士專業(yè):計(jì)算機(jī)應(yīng)用技術(shù)指導(dǎo)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(dú)創(chuàng)性聲明本人聲明所里交的學(xué)位論文是本人在導(dǎo)師指導(dǎo)下進(jìn)行的研究工作及取得的研究成果。據(jù)我所知,除了文中特別加以標(biāo)注和致駙的地方外,論文中不包含其他人已經(jīng)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(jī)構(gòu)的學(xué)位或證書而使用過的材料。與我一同工
8、作的同志對(duì)本研究所做的任何貢獻(xiàn)均已在論文中作了明確的說明并表示謝意。學(xué)位論文作者簽名哆雪簽字日期:石扔年7月,日學(xué)位論文版權(quán)使用授權(quán)書本