基于左逆系统的无轴承异步电机无速度传感器运行  

Speed-sensorless operation of bearingless induction motor based on leftinverse system

作　　者：孙晓东[1,2] 朱熀秋[2] 杨泽斌[2] 

机构地区：[1]江苏大学汽车工程研究院,江苏镇江212013 [2]江苏大学电气信息工程学院,江苏镇江212013

出　　处：《控制与决策》2012年第8期1256-1260,共5页Control and Decision

基　　金：国家自然科学基金项目(61104016);江苏省研究生科研创新计划基金项目(CX10B 270Z);江苏高校优势学科建设工程项目(苏政办发[2011]6号);江苏省高校自然科学研究面上项目(11KJB510002)

摘　　要：为了解决无轴承异步电机运行控制中转速检测的问题,实现对其高性能控制,提出了一种基于左逆系统的无速度传感器控制方法.建立了转速与转矩绕组定子电流的子系统,并证明了该子系统是左可逆的,将左逆系统与该子系统串联,便可实现对转速的观测.应用该方法建立了无轴承异步电机无速度传感器的矢量控制系统,并进行仿真研究.结果表明,该方法能在无轴承异步电机全速范围内准确观测出转速,实现无速度传感器方式的稳定悬浮运行.In order to solve the inspection problem of rotor speed and achieve the high performance control of the bearingless induction motor, a speed-sensorless control scheme based on left-inverse system is proposed. The subsystem consisting of rotor speed and stator currents of the torque winding is set UP, and the left-invertibility of the subsystem is proved. Combining the left-inverse system with the subsystem, the rotor speed is observed effectively. Afterwards, the speed-sensorless vector control system of the bearingless induction motor is set up and the simulation study is carded out. Simulation results show that the rotor speed of bearingless induction motor can be precisely estimated in a full speed operation region and the stable speed-sensorless suspension operation can be achieved by using the proposed method.

关 键 词：无轴承异步电机 左逆系统 无速度传感器 矢量控制 

分 类 号：TM346[电气工程—电机]