Fault current limiter for DC motor drive system

Details Fault current limiter for DC motor drive system Fault current limiter for DC motor drive system

1989-05-10

1990-09-18

Shoop, Jr., William M.

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Field control, or field and armature control, by analog...

361 31, A02P 314

Patent

active

049583808

ABSTRACT:
There is disclosed a direct current motor drive system comprising a direct current motor operable in a forward motoring mode receiving current from a power source and in a reverse inversion mode providing inversion current to the power source. The drive system includes a converter for controlling motor operation. The converter converts alternating current, received from the power source, to direct current. The converter supplies direct current across terminals of the motor when operating in the forward motoring mode. The system includes an inversion fault current limiter for limiting inversion fault currents associated with motor operation in the reverse inversion mode without effecting the supply of current to the motor in the forward motoring mode. The inversion fault current limiter is electrically connected in series between the converter and one armature terminal of the motor. The inversion fault limiter includes a diode switch connected in parallel with a resistor. The diode switch conducts during the forward motoring mode to permit the flow of direct current therethrough from the converter to the motor. The diode switch does not conduct when the motor is operating in the reverse inversion mode so as to direct inversion current through the resistor and thereby limit the flow of inversion fault currents.

REFERENCES:
patent: 3411062 (1968-11-01), Kamens
patent: 3577055 (1971-05-01), Hermansson
patent: 3748560 (1973-07-01), Sawa et al.
patent: 3769566 (1973-10-01), Mehta
patent: 3826962 (1974-07-01), Morton et al.
patent: 4095152 (1978-06-01), Narita
patent: 4275341 (1981-06-01), Huber et al.
patent: 4319170 (1982-03-01), Brent
patent: 4323833 (1982-04-01), Watanabe et al.
patent: 4401926 (1983-08-01), Morton et al.
patent: 4471277 (1984-09-01), Franz, Jr.

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