一种基于改进预滤波器和速度无关位置误差补偿策略的永磁同步电机无传感器控制直流偏置消除方法

The conventional sliding mode observer (SMO) based sensorless control methods for permanent magnet synchronous motor (PMSM) often have some key drawbacks, such as the strong coupling between the speed and rotor position estimation, and the sensitivity to unexpected dc-offset. To solve these demerits, an improved prefilter and a new speed immune position error compensation strategy are proposed to ...