Line-regenerative motor controller with current limiter

Details Line-regenerative motor controller with current limiter Line-regenerative motor controller with current limiter

1984-08-31

1986-10-28

Beha, Jr., William M.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

318762, 318806, 363 37, 363126, H01H 712

Patent

active

046202722

ABSTRACT:
An AC motor drive includes a power converter which supplies current to a DC bus from three-phase power lines. An inverter drives the motor from power delivered to the DC bus and it regenerates power to the DC bus when the motor is decelerated. The power converter in turn regenerates the power to the power lines by controlling line current such that it is substantially in-phase with the applied line voltages. Current overload protection is provided for the transistor switches employed in the power converter bridge circuit.

REFERENCES:
patent: 4272807 (1981-06-01), Gallagher
patent: 4319177 (1982-03-01), Kawada et al.
patent: 4353023 (1982-10-01), Kawada et al.
patent: 4426610 (1984-01-01), Kawada et al.
patent: 4434393 (1984-02-01), Kobari et al.
patent: 4449176 (1984-05-01), Turnbull

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