Controlled post-synchronizing on brushless synchronous motors

Details Controlled post-synchronizing on brushless synchronous motors Controlled post-synchronizing on brushless synchronous motors

1975-11-20

1977-07-26

Rubinson, Gene Z.

Electricity: motive power systems

With flywheel or massive rotary member

318176, 318181, 318183, 318193, H02P 150

Patent

active

040385892

ABSTRACT:
A static control system for applying excitation to synchronous motors, especially of the brushless type, by firing a semiconductor switch to apply direct current excitation to the field of the motor. A post-synchronization firing circuit is provided for firing the switch in response to the voltage across the switch if the motor pulls into synchronism before the switch is fired. A control circuit is provided for inhibiting the operation of the post-synchronizing firing circuit during subsynchronous operation.

REFERENCES:
patent: 3350613 (1967-10-01), Brockman et al.
patent: 3381195 (1968-04-01), Hoffmann
patent: 3405338 (1968-10-01), Frola
patent: 3414788 (1968-12-01), Hoffmann et al.
patent: 3539890 (1970-11-01), Zechlin
patent: 3599236 (1971-08-01), Hutchins

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