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1、第11卷第2期电机与控制学报Vol111No122007年3月ELECTRICMACHINESANDCONTROLMarch2007多相永磁同步电机模糊神经网络控制调速系统欧阳红林,成兰仙(湖南大学电气与信息工程学院,湖南长沙410082)摘要:针对多相永磁同步电机具有非线性、强耦合等特点,传统的PID控制和模糊控制均不能达到很好的控制效果问题,依据空间矢量解耦的理论,建立了多相永磁同步电机的数学模型,给出了基于模糊高斯基函数神经网络的多相永磁同步电机调速系统控制方法,并在六相永磁同步电机上做了仿真分析研究。结果表明,该控制方法反应速度较快,
2、无超调,在突加负载后速度也能够很好跟踪给定速度。响应过程中电磁力矩及定子电流基本上无振荡现象,稳态时电磁力矩恒定,对应的六相定子电流为规整正弦波。动静态性能均优于传统的PID控制和模糊控制。关键词:多相永磁同步电机;模糊神经网络;高斯基函数中图分类号:TM351;TP273.4文献标识码:A文章编号:1007-449X(2007)02-0111-05Multiplephasepermanent2magnetsynchronousmotorspeedcontrolsystembasedonfuzzyneuralnetworkcontrolOUY
3、ANGHong2lin,CHENGLan2xian(CollegeofElectricalandInformationEngineering,HunanUniversity,Changsha410082,China)Abstract:ThePIDcontrolandfuzzycontrolsystemcouldnotattainsatisfactoryperformancebecauseofthenonlinearandstrongcouplingofmultiplephasepermanent2magnetsynchronousmotor.
4、Inordertogetbetterperformanceandeliminatestaticerrorinmultiplephasepermanent2magnetsynchronousmotorcontrolsystem,theapplicationofafuzzyneuralnetworkcontrolalgorithmbasedonGaussfunctiontothecontrolofdualYshift30°six2phasepermanent2magnetsynchronousmotorspeedisinvestigatedint
5、hispaper.Themathemati2calmodelofdualYshift30°six2phasepermanent2magnetsynchronousmotorisdevelopedaccordingtothespacevectortheories.Simulationresultsindicatethattheproposedcontrolschemecanbeeffectivelyusedincontrollingthespeedofsix2phasepermanent2magnetsynchronousmotor,andha
6、squickresponse,noovershootandrunningafterprimelythescheduledspeedwhentheloadissuddenlyaddedto.Inthecourseofresponse,theelectromagnetictorqueandstatorcurrentbasicallyhavenonoscillatingphenomena,electromagnetictorqueisconstantinsteadystate,andthecorrespondingsix2phasestatorcu
7、rrentissinewave.Thedynamicandstat2icperformancearebothbetterthantraditionalPIDcontrolandfuzzycontrol.Keywords:multiplephasepermanent2magnetsynchronousmotor;fuzzyneuralnetwork;Gaussfunction高、响应速率快等优点。多相永磁同步电动机组成的1引言调速系统更具有三相系统无法比拟的优势,可用小功永磁同步电动机(PMSM)具有效率高、功率因素率器件实现大容量调速系统,从
8、而避免功率器件并联收稿日期:2005-11-17;修订日期:2007-01-06基金项目:湖南省自然科学基金资助项目(05JJ30191)作者简介:欧阳红林(196