Electricity: motive power systems – Synchronous motor systems – Hysteresis or reluctance motor systems
Patent
1997-01-17
1999-09-07
Ro, Bentsu
Electricity: motive power systems
Synchronous motor systems
Hysteresis or reluctance motor systems
318254, H02P 705
Patent
active
059492112
ABSTRACT:
A switched reluctance motor includes an auxiliary winding interspersed among the main phase windings such that a constant inductance ratio is established between the main and auxiliary windings regardless of rotor position. The auxiliary winding preferably has a higher inductance compared to the main winding. A test current is injected into the auxiliary winding in order to indirectly determine rotor position and the auxiliary winding is utilized to maintain a holding torque under static load conditions. The disclosed design and methodology improves motor function capabilities and economies.
REFERENCES:
patent: 3774062 (1973-11-01), Johnson
patent: 3887854 (1975-06-01), Parks
patent: 4100473 (1978-07-01), Lawrenson et al.
patent: 4296344 (1981-10-01), Rabe
patent: 4520300 (1985-05-01), Fradella
patent: 4808868 (1989-02-01), Roberts
patent: 5028852 (1991-07-01), Dunfield
patent: 5051680 (1991-09-01), Belanger
patent: 5111095 (1992-05-01), Hendershot
patent: 5166568 (1992-11-01), Nystuen et al.
patent: 5291115 (1994-03-01), Ehsani
patent: 5325035 (1994-06-01), Chiu
patent: 5333474 (1994-08-01), Imai et al.
patent: 5467025 (1995-11-01), Ray
patent: 5589751 (1996-12-01), Lim
Implicit Rotor Position Sensing Using Search Coils for a Self-Commutating Permanent Magnet Drive, IEE Proceedings, vol. 137, Pt. B No. 4, Jul. 1990.
A Sliding Mode Observer Based Controller for Switched Reluctance Motor Drives; Dept. of Electrical Engineering, Texas A & M University; 1994.
New Modulation Encoding Techniques for Indirect Rotor Position Sensing in Switched Reluctance Motors, Ehsani, et al, 1994 IEEE.
Elimination of Discrete Position Sensor and Current Sensor in Switched Reluctance Motor Drives 1994 IEEE.
Dual Decay Converter for Switched Reluctance Motor Drives in Low Voltage Applications, 1993 IEEE.
Rotor Position Sensing in Switched Reluctance Motor Drivess By Measuring Mutually Induced Voltages, 1994 IEEE.
"A Doubly Salient Doubly Excited Variable Reluctance Motor", Department of Electrical and Computer Engineering, University of Wisconsin--Madison--Authors: Hsien-Yuan Li, Feng Liang, Yifan Zhao and Thomas A. Lipo, Published 1993 @ IAS Conference (IEEE).
ITT Automotive Electrical Systems Inc.
Lewis J. Gordon
Ro Bentsu
LandOfFree
Switched reluctance motor with indirect position sensing and mag does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Switched reluctance motor with indirect position sensing and mag, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Switched reluctance motor with indirect position sensing and mag will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1807529