Synchronous motor control device connects either intermittent drive source or another drive source, depending on monitored source voltage variation

摘要

A motor disturbance monitoring unit (6) monitors variation in source voltage output by inverter to a synchronous motor (1). A drive system selection unit (7) switches either an intermittent drive source (8) or another drive source (9) having supply phase 180 deg , depending on the monitored variation supplying electricity drive (9) depending on the monitored disturbance.