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ID:37371368
大小:2.61 MB
页数:61页
时间:2019-05-22
《模糊控制技术在直接转矩控制中的应用及其仿真研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、合肥工业大学硕士学位论文模糊控制技术在直接转矩控制中的应用及其仿真研究姓名:张春申请学位级别:硕士专业:计算机应用技术指导教师:杨善林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独创性声明本人声明所里交的学位论文是本人在导师指导下进行的研究工作及取得的研究成果。据我所知,除了文中特别加以标注和致驸的地方外,论文中不包含其他人已经发表或撰写过的研究成果,也不包含为获得金目B』、业盔堂或其他教育机构的学位或证书而使用过的材料。与我一同工
8、作的同志对本研究所做的任何贡献均已在论文中作了明确的说明并表示谢意。学位论文作者签名哆雪签字日期:石扔年7月,日学位论文版权使用授权书本
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