基于推广卡尔曼滤波算法的永磁同步电机无位置传感器控制

Position Sensorless Control for Permanent Magnet Synchronous Motor Based on Extended Kalman Filter

介绍了一种基于推广卡尔曼滤波算法的永磁同步电机无位置传感器控制方案。利用推广卡尔曼滤波模型,由DSP(TM S320LF 2407)实时估算电机的转角eθ和转速ωe,使定转子磁场始终保持合适的位置并同步,利用空间矢量电压对系统进行矢量控制,实现调速。仿真结果表明,所提出的永磁同步电动机(PM SM)无传感器控制方法具有较强的鲁棒性和满意的性能。

This oaoer oresebts an approach of position sensorle4ss control for permanent magnet synchronous motor （PMSM）based on extended Kalman filter（EKF）. This algorithm can evaluate the rotor position θe and speed ωe on -line by DSP （TMS320LF2407）, making the magnet of stator and rotor coincide well. Sepace vector PWM （SVPWM）is used to implement the control of the motor. With the proposed method ,excellent adaptability and high performance are obtained by simulation.