Power supply systems for reluctance motors
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United States of America Patent
Stats
-
Aug 9, 1988
Grant Date -
N/A
app pub date -
Jan 7, 1986
filing date -
Jan 15, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a power supply system for a variable reluctance motor, each phase winding of the motor is connectible across a pair of supply rails by first and second switch means located respectively between the first supply rail and the winding and between the winding and the second supply rail. The first switch means is a fast switch-off device such as a gate turn-off thyristor or a transistor, while the second switch means is a slow turn-off device, such as a thyristor suitable for application to a line-commutation situation. In a two-phase configuration, where the second switch means is a thyristor, force-commutation of the second switch means may be achieved by means of a suitable capacitor interconnection between the thyristors switching the respective phases.
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