Synchronous motors

Details Synchronous motors Synchronous motors

1980-04-08

1982-02-09

Truhe, J. V.

Electricity: motive power systems

Synchronous motor systems

Field winding circuits

318732, 318803, 318806, H02P 146

Patent

active

043152023

ABSTRACT:
A synchronization arrangement for delaying excitation of the field winding (5) of a brushless synchronous motor until the motor rotor has run up approximately to synchronous speed in which the appropriate moment for applying the field excitation is determined by monitoring two signals respectively representative of the currents in two rectifying devices (11, 15) separately connected, oppositely poled, across the motor field winding.

REFERENCES:
patent: 3100279 (1963-08-01), Rohner
patent: 3350613 (1967-10-01), Brockman et al.
patent: 3381195 (1968-04-01), Hoffmann
patent: 3405338 (1968-10-01), Frola
patent: 3599236 (1971-08-01), Hutchkins
patent: 3798522 (1974-03-01), Pisecker et al.
patent: 3959702 (1976-05-01), Godwin et al.
patent: 4027216 (1977-05-01), Rozek
patent: 4038589 (1977-07-01), Heyne et al.
patent: 4128792 (1978-12-01), Herzog et al.
"The Synchro-Pac Brushless Engine-type Synchronous Motor" by K. L. Hanson-1100-TEC-1199 of Electric Machinery Mfg. Co., 1965.
"The Synchro-Pac Brushless Synchronous Motor" by K. L. Hanson and T. G. Rohner-Electric Machinery Mfg. Co.

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