无轴承异步电机的RFOC逆动态解耦控制  

RFOC Inverse Dynamic Decoupling Control of Bearingless Induction Motor

作　　者：卜文绍[1] 祖从林[1] 路春晓 王少杰[1] 

机构地区：[1]河南科技大学信息工程学院,河南洛阳471003

出　　处：《电气传动》2014年第8期68-71,80,共5页Electric Drive

基　　金：国家自然科学基金项目(51277053);河南省国际科技合作项目(114300510029);河南省教育厅自然基金项目(2010B510011)

摘　　要：为解决三相无轴承异步电机这一多变量、非线性对象的强耦合性问题,首先分析了RFOC(转子磁链定向控制)条件下的无轴承异步电机状态方程;然后,进行了无轴承异步电机的整体系统可逆性分析,采用逆系统方法进行了转速和转子磁链之间、两个径向位移分量之间的动态解耦控制方法研究,给出了逆动态解耦控制系统结构。仿真结果表明,系统各状态变量之间实现了可靠的动态解耦控制,且具有良好的动静态控制性能,所给逆动态解耦控制方法是有效的、可行的。To solve the strong coupling problem of three-phase bearingless induction motor which is a multi-variable,nonlinear object,the state equation of bearingless induction motor based on RFOC（rotor flux orientationcontrol）was analyzed. Then,the reversibility of the overall system was discussed according to the mathematical modelof bearingless induction motor ,the dynamic decoupling control method for the speed,rotor flux linkage and the tworadial displacement components was researched based on inverse system method,the decoupling control systemstructure was presented. Simulation results show that the dynamic decoupling control has been achieved between thosesystem state variables reliably;moreover,a good dynamic and static performance has been achieved. The proposeddecoupling control method is effective and feasible.

关 键 词：无轴承异步电机 动态解耦控制 转子磁场定向 逆系统法 

分 类 号：TM343[电气工程—电机]