Gate control circuit for thyristor converter

Details Gate control circuit for thyristor converter Gate control circuit for thyristor converter

1980-09-05

1982-03-16

Shoop, William M.

Electric power conversion systems

Current conversion

Including automatic or integral protection means

363 87, 363 68, H02H 7125

Patent

active

043204457

ABSTRACT:
In a gate control circuit for a thyristor converter, in which thyristor valves each having a plurality of series thyristors are connected to form a bridge, a detector for detecting a forward voltage applied across one of the thyristors and a circuit for supplying a gate signal to the gate of that thyristor valve are provided. The gate control circuit further comprises a circuit for supplying, when a bypass pair operation of the thyristor converter is switched over to a deblock operation, a signal to the gate of a continually conductive thyristor valve according to a control signal to a thyristor valve to be operated in deblock with the continually conductive thyristor valve and also a gate signal to the continually conductive thyristor valve.

REFERENCES:
patent: 3654541 (1972-04-01), Kelly, Jr. et al.
patent: 3842337 (1974-10-01), Ekstrom et al.
patent: 4084206 (1978-04-01), Leowald et al.
patent: 4084221 (1978-04-01), Ogata
patent: 4100434 (1978-07-01), Iyotani et al.

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