Permanent magnet motor winding circuit and control method thereof

摘要: The invention discloses a permanent magnet motor winding circuit and control method thereof. comprises variable module connected with three-phase bridge arm of an inverter. corresponds to motor. is used adjust the number series turns each phase themotor according rotation speed When lower than first threshold, controlled be more improve linear load low torque. higher second less reduce terminal voltage weak magnetic current. power factor improved. torque fluctuation reduced. bidirectional thyristors. adjusted through openingor closing adjusted, current not cut off. According invention, follow reliable during dynamic configuration.