Power supply systems for reluctance motors

Details Power supply systems for reluctance motors Power supply systems for reluctance motors

1986-01-07

1988-08-09

Smith, Jr., David

Electricity: motive power systems

Synchronous motor systems

Hysteresis or reluctance motor systems

318138, H02P 540

Patent

active

047630566

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.

REFERENCES:
patent: 3401323 (1968-09-01), French
patent: 3560817 (1971-02-01), Amato
patent: 3639818 (1972-01-01), Wiart
patent: 3678352 (1972-07-01), Bedford
patent: 3679953 (1972-07-01), Bedford
patent: 4253053 (1981-02-01), Ray et al.

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