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Generators or Motors

Integrated-magnetic-bearing-switched-reluctance-machine

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Integrated magnetic bearing/switched reluctance machine

Details

Inventors: Preston, Mark A.; Lyons, James P. F.; Richter, Eike; Chung, Kiyoung;
Assignee: General Electric Company (Cincinnati, OH)
Primary Examiner: LaBalle; Clayton E.
Assistant Examiner:
Attorney, Agent or Firm: Hess; Andrew C., Narciso; David L.

The invention comprises a switched reluctance machine including a stator and a rotor wherein the stator includes stator teeth wound with separately excitable phase windings. The separately excitable phase windings receiving a combination of signals wherein the first of those signals is a phase winding signal and the second of those signals is a magnetic bearing signal. A method of controlling a switched reluctance machine wherein the switched reluctance machine includes separately excitable stator windings. The method comprising the steps of exciting each stator winding with a signal representative of the phase excitation for that winding and superimposing on each of said windings a signal capable of producing the magnetic force necessary to support the rotor in the absence of a mechanical bearing.

DETAILED DESCRIPTION The invention comprises a switched reluctance machine including a stator and a rotor wherein the stator includes stator teeth wound with separately excitable phase windings.
The separately excitable phase windings receiving a combination of signals wherein the first of those signals is a phase winding signal and the second of those signals is a magnetic bearing signal.
The invention further comprises a method of controlling a switched reluctance machine wherein the switched reluctance machine includes separately excitable stator windings.
The method comprising the steps of exciting each stator winding with a signal representative of the phase excitation for that winding and superimposing on each of said windings a signal capable of producing the magnetic force necessary to support the rotor in the absence of a mechanical bearing.

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