Current fed inverter with commutation independent of load induct

Details Current fed inverter with commutation independent of load induct Current fed inverter with commutation independent of load induct

1976-06-21

1977-08-02

Goldberg, Gerald

Electric power conversion systems

Current conversion

Using semiconductor-type converter

323102, H02M 7515

Patent

active

040399265

ABSTRACT:
A three phase bridge inverter supplies rectangular wave currents to an inductive load and to capacitors connected in wye across the load for wave shaping as well as filtering and power factor correction. A commutating capacitor connected to the midpoint of the wye-connected capacitors is controlled by two auxiliary thyristors. The commutating capacitor voltage is sensed and an incoming thyristor is not fired until the voltage rises to a level sufficient to commutate the next thyristor in sequence. This commutation is independent of load inductance.

REFERENCES:
patent: 3624476 (1971-11-01), Bruscaglioni et al.
patent: 3924173 (1975-12-01), Goswami
patent: 3935528 (1976-01-01), Brenneisen et al.
High Voltage Direct Current Power Transmission, By C. Adamson and N. G. Hingorani, Garraway Ltd. 1960, pp. 121-123.

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