Control system for commutatorless motor

Details Control system for commutatorless motor Control system for commutatorless motor

1978-08-21

1981-06-02

Rubinson, Gene Z.

Electricity: motive power systems

Synchronous motor systems

Armature winding circuits

318756, H02P 516

Patent

active

042713854

ABSTRACT:
A synchronous motor having a polyphase armature winding and a field winding is driven by a frequency converter. A position signal associated with the rotational position of the synchronous motor is adapted to be shifted in phase by the maximum of 180.degree. to the advance and lag side by a position control signal, so that a firing pulse for the frequency converter is generated by a combination of a phase-shifted position signal and a reverse signal. Thus the operation modes are switched stably between motoring and regenerative and between forward and reverse operations by changing the magnitude of the phase control signal and reversing the polarity thereof.

REFERENCES:
patent: 3737747 (1973-06-01), Krauer
patent: 3778691 (1973-12-01), Poppinger et al.
patent: 3908130 (1975-09-01), Lefuze
patent: 4085355 (1978-04-01), Fradella
patent: 4132931 (1979-01-01), Okuyama et al.
patent: 4144559 (1979-03-01), Okuyama et al.

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