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

Claim 9:
10. A system comprising:
a motor having a plurality of symmetric windings, a rotor and a stator magnetically coupled to the rotor;
a plurality of power inverters connected to respective windings, wherein the plurality of power inverters are configured to control currents of the plurality of windings; and
a controller configured to determine an injection ratio of a high-order synchronous harmonic component to a fundamental component for currents of the plurality of windings, and wherein the high-order synchronous harmonic component is configured to generate a rotating magnetic field at the same speed and in the same direction as a magnetic field generated by the fundamental component, and wherein 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, a phase-shift of one of the high-order synchronous harmonic currents is adjusted to reduce a magnetic saturation of the yoke area in the motor and increase a torque of the motor in an operation mode.