Arrangement for connecting plural self-commutated voltage type i

Details Arrangement for connecting plural self-commutated voltage type i Arrangement for connecting plural self-commutated voltage type i

1988-12-28

1990-05-01

Beha, Jr., William H.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Connecting or disconnecting

323207, 363 49, 363 72, H02M 748

Patent

active

049221248

ABSTRACT:
A power converter device including a plurality of self-commutated voltage type converter each connected to a common d.c. circuit, a plurality of transformers each having d.c. windings and a.c. windings, each of the d.c. windings being connected to an a.c. output terminal of a respective one of the converters and each of the a.c. windings being connected in series, an a.c. switch through which the serially connected a.c. windings of the transformers are adapted to be connected to a utility power system, and a d.c. overvoltage suppression device, installed in the common d.c. circuit, wherein the transformers are connected to the utility power system by synchronous making, and the d.c. overvoltage suppression device is connected to the common d.c. circuit when the converters are stopped temporarily.

REFERENCES:
patent: 3816809 (1974-06-01), Kuster
patent: 4133026 (1979-01-01), Hausler
patent: 4251735 (1981-02-01), Coleman
patent: 4482031 (1984-11-01), Yoshida et al.
patent: 4488200 (1984-12-01), Matsuzaki
Technical Progress Report-U.S. DOE "Advanced Converter Technology", for period May 23, 1979 through May 22, 1980, prepared by United Technologies Corporation under Contract DE-AC01-79ET29079.
IEEE Transaction on Power Apparatus and Systems, vol. PAS-98, No. 4, Jul./Aug. 1979, pp. 1466-1475.
S. Hirose et al., "Multi-Microcomputer-Based Controller for 12MW GTO Power Conditioning Systems" IEEE PESC'88, Apr. 11, 1988.
G. A. Phillips et al., "Progress in Self-Commutated Inverter for Fuel Cells and Batteries" IEEE PES Summer Meeting in Jul. 1978.

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