Power converting apparatus for system interconnection

Details Power converting apparatus for system interconnection Power converting apparatus for system interconnection

1995-03-10

1996-08-27

Nguyen, Matthew V.

Electric power conversion systems

Current conversion

Using semiconductor-type converter

363 98, H02M 75387, H02M 324

Patent

active

055507301

ABSTRACT:
A power converting apparatus for system interconnecting includes a self-commutated converter, DC supply or direct capacitor connected to a DC terminal of the self-commutated converter, a series reactor or transformer, connected between an AC terminal of the self-commutated converter and an AC power system. The self-commutated converter includes a plurality of semiconductor valves connected in bridge between P bus and N bus of the DC supply. The semiconductor valves respectively includes a plurality of series-connected nonlatch devices, a series snubber circuit connected in series to the plurality of series-connected nonlatch devices, and a voltage balancing resistor and a plurality parallel snubber circuits respectively which includes a clipper circuit and a series circuit. The series circuit comprises a snubber capacitor and snubber resistor.

REFERENCES:
patent: 4231083 (1980-10-01), Matsuda et al.
patent: 5027263 (1991-06-01), Harada et al.
patent: 5070426 (1991-12-01), Iwasa et al.
patent: 5077651 (1991-12-01), Kobayashi et al.
patent: 5260607 (1993-11-01), Kinbara

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