一种用于基于信号注入的IPMSM无传感器驱动的新型声学降噪方法

Many signal-injection-based sensorless methods have been developed to drive the interior permanent magnet synchronous motor without a position sensor at low speed. By these methods, rotor position can be estimated by measuring the output current ripple of inverter caused by the injected signal. However, this ripple is able to generate the undesirable acoustic noise, which decreases the usefulness ...