永磁同步电机非线性状态反馈控制研究分析 机械制造专业VIP免费

摘要永磁同步电机（PMSM）是一个多变量、强耦合、非线性的系统。本论文是以永磁同步电机为研究对象，研究非线性反馈控制方法在永磁同步电机上的应用。首先确定了研究永磁同步电机的非线性状态控制方法的总体设计方案，为进一步的去研究系统明确了方向；其次基于Matlab/Simulink建立永磁同步电机的仿真模型并了解其控制原理,熟悉它具体是如何工作的；然后设计了非线性反馈控制算法，确定被控量通过非线性状态反馈和非线性坐标的变换，将一个非线性系统转变为线性系统；最后基于Matlab/Simulink对永磁同步电机非线性反馈控制系统进行仿真并得出结论。仿真的结果表明系统对参数的变化具有很强的敏感性。这也是我们今后有待于继续研究的方向。关键词：永磁同步电机；非线性反馈控制；仿真ABSTRACTPermanentmagnetsynchronousmotor(PMSM)isamulti-variableandstrong-coupled,non-linearsystems.Thispaperisforpermanentmagnetsynchronousmotortostudytheresearchonapplicationoffeedbackcontrolmethodinpermanentmagnetsynchronousmotor.First,weidentifiedstudyonNonlinearcontrolmethodofpermanentmagnetsynchronousmotor'soveralldesign,andfurthertostudythesystemdirectionclearly;Second,modelofthepermanentmagnetsynchronousmotorbasedonMatlab/Simulinksimulationandlearneditscontroltheory,andfamiliarwithhowitworks;Thenthenonlinearfeedbackcontrolalgorithm,determiningtheamountchargedbynonlinearStatefeedbackandnon-linearcoordinatetransformation,willbetransformedintoanonlinearsystemoflinearsystems;FinallynonlinearfeedbackcontrolsystemofpermanentmagnetsynchronousmotorbasedontheMatlab/Simulinksimulationanddrawconclusions.Thesimulationresultsshowthatthesystemhasastrongsensitivitytoparametervariations.Thisisthedirectionweneedtobecontinuedinthefuture.Keywords:Permanentmagnetsynchronousmotor;Nonlinearfeedbackcontrol;Simulation目录第一章绪论..............................................................................................11.1课题背景及研究意义......................................................................................11.1.1研究课题的提出.....................................................................................11.1.2永磁同步电机与其他电机的比较.........................................................21.2永磁同步电机系统的国内外研究概括..........................................................31.3本文主要内容及研究工作..............................................................................5第二章永磁同步电机数学模型..............................................................62.1引言..................................................................................................................62.2永磁同步电机（PMSM）的数学模型..........................................................62.3坐标之间的转换..............................................................................................92.3.1三相静止坐标系与两相静止坐标系之间的转换.................................92.3.2两相静止坐标系与两相旋转坐标系之间的转换...............................112.4本章小结........................................................................................................13第三章反馈线性化的控制方法............................................................143.1引言................................................................................................................143.2非线性化控制系统........................................................................................143.3反馈线性化技术................................................