改进磁链观测器与I-f启动方法在宽调速范围无传感器SPMSM驱动中的集成

This article aims to improve the sensorless control performance of surface-mounted permanent magnet synchronous machine drives in the whole speed range. Based on the thought of speed partition optimization and smooth transition, a hybrid sensorless control strategy integrating with an improved flux linkage observer and the current-frequency (I-f) starting method is proposed. At zero-low speed, the...