Drive circuit for a switched reluctance motor with improved ener

Details Drive circuit for a switched reluctance motor with improved ener Drive circuit for a switched reluctance motor with improved ener

1996-12-03

1998-04-21

Ip, Paul

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318254, 318138, 318757, H02P 540, H02P 705

Patent

active

057421463

ABSTRACT:
A drive circuit for a switched reluctance motor has phase circuits connected to a common dump capacitor which receives residual magnetic energy from each phase coil when it is switched off. One or more recovering phase circuits are connected to the dump capacitor and comprise a controlled switch and diode whereby energy stored in the dump capacitor is returned to a recovering phase coil in sequence.

REFERENCES:
patent: 3854077 (1974-12-01), Greenwell
patent: 4348619 (1982-09-01), Ray et al.
patent: 4563619 (1986-01-01), Davis et al.
patent: 4584506 (1986-04-01), Kaszmann
patent: 4682093 (1987-07-01), Murphy et al.
patent: 4684867 (1987-08-01), Miller et al.
patent: 5115181 (1992-05-01), Sood
patent: 5214365 (1993-05-01), Bahn
patent: 5278482 (1994-01-01), Bahn
patent: 5449993 (1995-09-01), Davis
patent: 5548196 (1996-08-01), Lim
A Page From "Switched Reluctance Motors and Their Control" Chapter 6 by T.J. Miller.

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