基于混合调制的永磁同步电机全速域无传感器控制

This article presents a full-speed sensorless control strategy for permanent magnet synchronous motors (PMSMs) based on a hybrid modulation strategy. The motor operating condition is divided into three ranges: low-speed range, transition range, and high-speed range. A novel two-or-three-vector switching (TTVS) method for rotor position demodulation based on an optimized asymmetric pulsewidth modul...