一种用于永磁同步电机无位置传感器控制的高频脉振电压注入解调新方法

The high-frequency (HF) pulsating carrier voltage injection method is widely used for sensorless control of permanent magnet synchronous motors operating in the low-speed region. In this method, the position error contained in the q-axis current amplitude is typically extracted using a combination of a band-pass filter and a low-pass filter (LPF). However, the position estimation loop of this stra...