Patent ID: 11870377
Assignee: QUANTENTECH LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A method comprising:
configuring a system with a motor and an inverter, wherein the motor has a plurality of symmetrical windings coupled to the inverter;
configuring the inverter to inject a plurality of high-order synchronous harmonic currents into the windings of the motor, wherein the high-order synchronous harmonic currents are configured to generate a rotating magnetic field in the motor at the same speed and in the same direction as a magnetic field generated by fundamental currents in the plurality of windings of the motor; and
in response to an increased phase number, a reduced pole number and a corresponding saturation region change from a tooth area to a yoke area, adjusting a phase-shift of one of the high-order synchronous harmonic currents to reduce a magnetic saturation of the yoke area in the motor and increase a torque of the motor in an operation mode.