Patent ID: 11929699
Assignee: HL MANDO CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A control apparatus for a double wound motor, the control apparatus comprising:
a first inverter and a second inverter configured to supply phase currents to a first winding unit and a second winding unit of the double wound motor, respectively;
a gate driver configured to drive switches comprised in the first inverter and the second inverter; and
a motor controller configured to store a plurality of current commands corresponding to pre-stored different patterns of torque ripple, check a pattern of torque ripple in the double wound motor, and output one of the stored current commands corresponding to the checked pattern of torque ripple,
wherein the motor controller is configured to:
store another pattern of torque ripple when a winding of the first or second winding unit is short-circuited to ground or when a short circuit occurs between the winding of the first winding unit and the winding of the second winding unit; and
perform current control differently depending on which short circuit occurs among a short circuit between the ground and the winding of the first or second winding unit and another short circuit between the winding of the first winding unit and the winding of the second winding unit.