基于扩张状态观测器的永磁同步电机伺服控制方法研究的中期报告摘要：永磁同步电机是一种高性能、高效率的驱动器，近年来在工业应用中得到越来越广泛的应用。本文研究基于扩张状态观测器的永磁同步电机伺服控制方法。首先，介绍了永磁同步电机的特点及其数学模型。然后，针对永磁同步电机控制系统中难以测量的状态变量，采用扩张状态观测器进行估计。最后，基于扩张状态观测器的永磁同步电机伺服控制方法进行了仿真实验，结果表明该控制方法具有良好的控制性能，能够实现高精度、高性能的驱动控制。关键词：永磁同步电机；扩张状态观测器；伺服控制；控制性能Abstract:Permanentmagnetsynchronousmotor(PMSM)isahigh-performanceandhigh-efficiencydriver,andhasbeenwidelyusedinindustrialapplicationsinrecentyears.ThispaperstudiestheservocontrolmethodofPMSMbasedonexpansionstateobserver.Firstly,thecharacteristicsandmathematicalmodelofPMSMareintroduced.Then,inordertoestimatethestatevariablesthataredifficulttomeasureinthePMSMcontrolsystem,theexpansionstateobserverisused.Finally,simulationexperimentswerecarriedoutbasedontheservocontrolmethodofPMSMusingtheexpansionstateobserver.Theresultsshowthatthecontrolmethodhasgoodcontrolperformanceandcanachievehigh-precisionandhigh-performancedrivecontrol.Keywords:permanentmagnetsynchronousmotor;expansionstateobserver;servocontrol;controlperformance