针对低转子磁各向异性SPMSM的开关频率方波电压注入无传感器控制

High-frequency signal injection sensorless algorithms are widely studied and used for rotor angle estimation in permanent magnet synchronous motor (PMSM) at low speed or standstill. One of the main drawbacks of such methods is the acoustic noise connected to the voltage injection. In order to minimize this problem, it is advisable to increase the frequency of the injected signal. Thus, many studie...