Control system for bearingless motor-generator

A control system for an electromagnetic rotary drive for bearingless motor-generators comprises a winding configuration comprising a plurality of individual pole pairs through which phase current flows, each phase current producing both a lateral force and a torque. A motor-generator comprises a stator, a rotor supported for movement relative to the stator, and a control system. The motor-generator comprises a winding configuration supported by the stator. The winding configuration comprises at least three pole pairs through which phase current flows resulting in three three-phase systems. Each phase system has a first rotor reference frame axis current that produces a levitating force with no average torque and a second rotor reference frame axis current that produces torque.
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Abstract/Description: A control system for an electromagnetic rotary drive for bearingless motor-generators comprises a winding configuration comprising a plurality of individual pole pairs through which phase current flows, each phase current producing both a lateral force and a torque. A motor-generator comprises a stator, a rotor supported for movement relative to the stator, and a control system. The motor-generator comprises a winding configuration supported by the stator. The winding configuration comprises at least three pole pairs through which phase current flows resulting in three three-phase systems. Each phase system has a first rotor reference frame axis current that produces a levitating force with no average torque and a second rotor reference frame axis current that produces torque.
Subject(s): 310/90.5
310/113
318/495
Date Issued: 2008-11-25
Title: Control system for bearingless motor-generator.
Name(s): The University of Toledo, assignee
Kascak, Peter E., inventor
Jansen, Ralph H., inventor
Dever, Timothy P., inventor
Type of Resource: text
Genre: patent
Publisher: United States Patent and Trademark Office
Other Date: Date Filed: 2005-12-15
Date Issued: 2008-11-25
Physical Form: application/pdf
Extent: 27 p.
Abstract/Description: A control system for an electromagnetic rotary drive for bearingless motor-generators comprises a winding configuration comprising a plurality of individual pole pairs through which phase current flows, each phase current producing both a lateral force and a torque. A motor-generator comprises a stator, a rotor supported for movement relative to the stator, and a control system. The motor-generator comprises a winding configuration supported by the stator. The winding configuration comprises at least three pole pairs through which phase current flows resulting in three three-phase systems. Each phase system has a first rotor reference frame axis current that produces a levitating force with no average torque and a second rotor reference frame axis current that produces torque.
Identifier(s): utpatents-US7456537 (IID)
Patent No.: US7456537 (patno)
Appl. No.: 11/304359 (appno)
Subject(s): 310/90.5
310/113
318/495
Held by: United States Patent and Trademark Office (USPTO) Public Search Facility
Location: University of Toledo Digital Repository
Rights Statement: No Copyright - United States
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