sensorless control of pmsm with HFI square wave injection and rotor initial position detection

Simulation of sensorless control of permanent magnet synchronous motor with high frequency square wave voltage injection and rotor initial position detection
Adopting square wave voltage injection, with rotor initial position detection, and using pulse voltage method to distinguish NS magnetic poles, it can realize sensorless starting operation at any initial position;
It can realize load starting and sudden load operation
High rotor position estimation accuracy and high speed estimation accuracy
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