一种低直流母线电压占用的IPMSM无传感器控制变幅脉动信号注入法

Sensorless control based on signal injection is inherently limited to low-speed operation due to the injection voltage occupying the dc-bus voltage. This article proposes a variable amplitude pulsating signal injection method with low dc-bus voltage occupancy for sensorless control of interior permanent-magnet synchronous motors. The varying injection amplitude is dynamically determined by both th...