Speed Sensorless Control of Bearingless Permanent Magnet Synchronous Motor
A composite observer method using high frequency signal injection and extended Kalman filter (EKF) is presented to estimate the rotor position and speed for bearingless permanent magnet synchronous motor(BPMSM). The very low speed and standstill performance of the drive is further enhanced by using high frequency signal injection. The high speed of the drive is using EKF. By designing speed switch, it can achieve smooth switching between the two methods. The proposed method is capable of exhibiting high dynamic and steady-state performances over a wide speed range. Experimental results confirm the effectiveness of the proposed method.
Bearingless permanent magnet synchronous motor(BPMSM) Speed sensorless High frequency signal injection Extended Kalman filter (EKF)
XU Bo JI Wei ZHU Huangqiu
School of Electrical and Information Engineering, Jiangsu University, Zhenjiang 212013, China
国际会议
The 31st Chinese Control Conference(第三十一届中国控制会议)
合肥
英文
4434-4438
2012-07-01（万方平台首次上网日期，不代表论文的发表时间）