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1、江苏大学京江学院毕业设计基于SVPWM的异步电机变频调速系统的研究专业班级：J电气1001学生姓名：王荀指导老师：乔薇职称：5江苏大学京江学院毕业设计摘要:关键词:矢量控制;变频调速;MATLAB;SVPWMResearchonVariableFrequencySpeedRegulatingSystemofAsynchronousMotorBasedonSVPWMAbstract:Inrecentyears,withthedevelopmentofpowerelectronics,micro-processorof
2、motorcontrolandthenewtheoryofmotorcontrol,thecontroltechnologyofasynchronousmotorishighlypromoted.Asynchronousmotorhassimplestructure,lowcost,comparabletoDCmotorcontrolperformancewhenusingthevectorcontroltechnology.Moreover,vectorcontrolofasynchronousmotorhash
3、igherprecisionwiderpeed-regulatingrangeandfasterresponse.Afterin-depthstudyontheprincipleofasynchronousmotorvectorcontrolsystembasedonSpaceVectorPulseWidthModulation(SVPWM).VectorControlSystem(VC)isoneoftheadvancedtheories,whichisbasedonmotorunificationPrincip
4、le,energyconversionandvectorcoordinatetransformationtheory.Ithasmanyadvantagessuchasnovelty,practicabilityandadvancement.BytransformingthemodelofACmotortoDCmotor,thestatorcurrentisdecomposedintotwoDCpartswhichareorientatedtowardstherotormagneticfieldandcontrol
5、ledrespectively.Thusthemagneticfluxandtorquearedecoupled.Inwhichway,Itcontrolstheasynchronousmotorinasynchronousway.Thisthesisintroducesthecorrelativeinformationofvariablefrequencyspeedregulating,vectorcontrolsystemofasynchronousmotor,andexpatiatesSpaceVectorP
6、ulseWidthModulation(SVPWM).ByusingMATLABdynamicsimulationsoftware,throughtheprincipleofthevectorcontrolsystem,getthestructuremodelofvariablefrequencyspeedregulatingsystemofasynchronousmotorbasedonSVPWM,givenallthedetailedsubschemaandplanallthedata,usingthealgo
7、rithmforSVPWM,thesimulatedmodelofvariablefrequencyspeed5江苏大学京江学院毕业设计regulatingsystemfedbySVPWMinverterissetupforasynchronousmachine.Throughthesimulatedmodel,gettheresultandanalyzeditindetail.KeyWords:VectorControl;VariableFrequencySpeedRegulating;MATLAB;SpaceV
8、ectorPulseWidthModulation5江苏大学京江学院毕业设计目录第1章绪论11.1交流电动机的发展概况11.2交流调速系统的特点11.3交流调速系统的发展历史21.4电压空间矢量脉宽调制(SVPWM)技术31.4.1电压空间矢量脉宽调制(SVPWM)技术的原理31.4.2传统的正弦脉宽调制(SPWM)技术31.4.3电压空间矢量脉宽调制(SV
