Switched reluctance motor drive operating without a shaft positi

Electricity: motive power systems – Open-loop stepping motor control systems

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318685, 318138, H02P 800

Patent

active

046111573

ABSTRACT:
A method and apparatus for operating a switched reluctance motor at high efficiency, without requiring a shaft position sensor, allows dynamic increase of the torque margin as the dwell angle of the phase currents is changed in response to a change in load torque. Average current supplied by the DC link is sensed as a measure of load torque and is used to control the dwell angle.

REFERENCES:
patent: Re31229 (1983-05-01), King
patent: 3697840 (1972-10-01), Koch
patent: 3980933 (1976-09-01), Piatkowsky, Jr.
patent: 4326278 (1982-04-01), Shida et al.
patent: 4477757 (1984-10-01), Palombo et al.
patent: 4500824 (1985-02-01), Miller
patent: 4520302 (1985-05-01), Hill et al.
Sales literature on the Oulton.RTM. Switched Reluctance Drive, from Tasc Drives Ltd.
Bakhuizen, "On Self-Synchronisation of Stepping Motors", Eindhoven University of Technology.
Kuo et al., "On Current Detection in Variable-Reluctance Step Motors", Proc. 6th Ann. Symp. on Incre. Mo. Cont., 5/77, pp. 205-220.
Taft et al., "Development of No Overshoot Open-Loop Step Motor Control Strategies Using Velocity-Error Plane", U. of N. Hampshire.
Frus et al., "Closed-Loop Control of Step Motors Using Waveform Detection", Proc. Int. Conf. St. Motors, 7/76, pp. 44-53.
Davis et al., "Inverter Drive for SR Motor: Circuits and Component Ratings", IEEE Proc., 3/81.
Acarnley, Stepping Motors: A Guide to Modern Theory and Practice, IEE Control Eng. Series, Peregrinus Ltd., New York, pp. 113-125.
M. L. Patterson, "Analysis and Correction of Torque Harmonics in Permanent-Magnet Step Motors", Proc. 6th Ann. Symp. on Increm. Mot. Contr., 5/77, pp. 25-38.

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