永磁同步电机低速无传感器驱动的混合磁链观测器参数鲁棒性改进

This letter proposes an improved hybrid flux observer (HFO) for sensorless control scheme of permanent magnet synchronous motor (PMSM). The proposed method is robust against stator resistance mismatch, which is the primary factor affecting the performance of the observer at low speed. A compensation angle has been added to the correction part of the current model and voltage model in HFO, in order...