基于双有效电压矢量注入的三相四开关

This article proposes a solution to the challenge of achieving a reliable restart in sensorless permanent magnet synchronous motors transitioning from a three-phase six-switch inverter to a three-phase four-switch (TPFS) inverter due to faults. The proposed rotating restart method employs the injection of dual effective voltage vectors to synthesize the equivalent zero-voltage vector, under unbala...