基于逆系统理论的无轴承永磁同步电机解耦控制研究  

Study on Decoupling Control of Bearingless Permanent Magnet Synchronous Motors Based on Inverse System Theory

作　　者：费德成[1] 朱熀秋[1] 

机构地区：[1]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《中国工程科学》2005年第11期48-54,共7页Strategic Study of CAE

基　　金：国家自然科学基金资助项目(50275067);江苏省高技术研究项目(BG2005027);教育部留学回国人员科研启动基金项目

摘　　要：应用多变量非线性控制逆系统理论,对无轴承永磁同步电机的多变量、非线性、强耦合的控制对象进行了动态解耦控制研究;介绍了逆系统理论,阐述了无轴承永磁同步电机径向力的产生机理,建立了转矩力和径向悬浮力状态方程,分析了基于逆系统理论解耦控制的可行性,推导出基于逆系统理论的无轴承永磁同步电机转矩力与径向力之间的动态解耦控制算法。仿真结果表明,这种控制策略能够实现转矩力与径向力之间的动态解耦,并且系统具有良好的动、静态性能。A decoupling control approach based on dynamic inverse system theory has been developed for the bearingless permanent magnet synchronous motor （BPMSM）, which is a multi-variable, nonlinear and strongcoupled system, Firstly, inverse system theory is briefly introduced. Secondly, the principle of suspension forces is expounded, and the state equations of torque force and radial suspension forces are set up. Then feasibility of decoupling control based on dynamic inversion theory for BPMSM is discussed in detail, and the dynamic decoupling control arithmetic based on inverse system is deduced. Finally, the simulation results have showed that this kind of control strategy can realize dynamic decoupling control between torque force and radial suspension forces, and the control system has fine dynamic and static performance.

关 键 词：无轴承永磁同步电机 逆系统 反馈线性化 解耦控制 

分 类 号：TM34[电气工程—电机]