基于模糊补偿的无轴承同步磁阻电机径向位置逆控制  

Inverse Control of Radial Position for Bearingless Synchronous Reluctance Motor Based on Fuzzy Compensation

作　　者：张汉年[1] 刘合祥[2] 

机构地区：[1]南京信息职业技术学院电子信息学院,江苏南京210046 [2]东南大学电气工程学院,江苏南京210096

出　　处：《电气传动》2011年第6期40-44,共5页Electric Drive

基　　金：南京信息职业技术学院重点科研项目(YKJ10-006)

摘　　要：给出无轴承同步磁阻电机转子径向位置的控制模型,针对多变量、强耦合的径向位置非线性系统,提出一种基于模糊补偿的被控电机转子径向位置逆控制方法,证明该径向位置系统可逆,推导出其逆系统模型,将其精确线性化成一个伪线性系统,从而将径向位置系统解耦为两个独立的二阶线性子系统。为对已解耦的径向位置系统进行综合,在常规PID控制器基础上叠加模糊控制器来设计闭环模糊补偿器,从而对逆系统解耦效果进行实时补偿,增强了系统的鲁棒性。仿真结果表明,上述控制策略能实现转子的稳定悬浮,控制系统具有优良的静、动态解耦效果。Control model of the rotor radial position for bearingless synchronous reluctance motor was introduced,in order to deal with the multivariable, strongly coupled and nonlinear system in the rotor radial position, the inverse control scheme of the rotor radial position based on fuzzy compensation was presented, the in- verse system% existence was proved, and the inverse model was derived, then the inverse model was accurately linearized into a pseudo linear system,so the system of rotor radial position can be decoupled into two second order linear integral subsystems. In order to synthesize the decoupled system, the closed fuzzy compensator which includes PID controller and fuzzy controller was designed, the fuzzy compensator not only can real-time compensate the decoupled effectiveness but also improve the robustness of the control system. Simulation results demonstrate that the rotor can realize a successful magnetic suspension with the proposed method, the control system has good dynamic and static decoupling characteristics.

关 键 词：无轴承同步磁阻电机 逆系统 模糊补偿 解耦控制 

分 类 号：TM35[电气工程—电机]