Patent ID: 11936256
Assignee: JACOBI MOTORS LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. A method of operating a flux-mnemonic permanent magnet synchronous machine (FMPMSM), the FMPMSM comprising:
an annular stator having a winding;
a rotor disposed concentric with the stator, the rotor comprising: at least two circumferentially magnetized adjustable permanent magnets, each of the permanent magnets having two poles normal to an air gap between the stator and rotor; and one or more flux adjusters adjacent to one or more poles of at least one of the permanent magnets; and
a power inverter for dispensing an excitation current and at least one current pulse;
the method comprising:
selecting a desired operational parameter having a first value;
controlling a magnetic flux density in the air gap, during operation of the FMPMSM, by adjusting a polarization ratio of magnetization of the at least one permanent magnet;
applying at least one current pulse from the inverter to adjust the polarization ratio of magnetization of the at least one permanent magnet during operation of the FMPMSM and to set a magnetic flux linkage between the rotor and stator to achieve the first value of the desired operational parameter;
selecting a second value of the desired operational parameter;
and achieving the second value of the desired operational parameter by applying at least one second current pulse to adjust the magnetic flux linkage to a magnetization state corresponding to the second value.