Power converter device having starting circuits and a method for

Details Power converter device having starting circuits and a method for Power converter device having starting circuits and a method for

1988-12-02

1989-12-26

Beha, Jr., William H.

Electric power conversion systems

Current conversion

With starting arrangement

307 82, 307 85, 363 51, 363 72, H02J 336

Patent

active

048902136

ABSTRACT:
A power converter device including a plurality of self-commutated voltage type converters each connected to a common dc circuit, a plurality of transformers each having dc windings and ac windings, each of the dc windings being connected to an ac output terminal of a respective one of the converters and each of the ac windings connected in series, an ac switch through which the serially connected ac windings of the transformers are connected to utility power systems, a capacitor provided in the common dc circuit, a dc overvoltage suppression means installed in the common dc circuit, and a current limiting device, wherein the capacitor in the common dc circuit is charged through the current limiting device means before starting the self-commutated voltage type converters, and the dc overvoltage suppression means is then connected to the common dc circuit and removed after the self-commutated voltage type converters are started.

REFERENCES:
patent: 3816809 (1974-06-01), Kuster
patent: 4133026 (1979-01-01), Hausler
patent: 4482031 (1984-11-01), Yoshida et al.
IEEE Transactions on PAS vol. PAS-98, No. 4, Jul./Aug. 1979, "Progress in Self Commutated Inverters for Fuel Cells and Batteries", G. A. Phillips et al.

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