Gate controlling apparatus for a thyristor valve

Details Gate controlling apparatus for a thyristor valve Gate controlling apparatus for a thyristor valve

1978-07-12

1980-09-16

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307252L, 363 68, H03K 1772

Patent

active

042232368

ABSTRACT:
A thyristor valve includes a plurality of thyristors connected in series and series circuits each including a capacitor and a resistor and connected in parallel with each thyristor. A pulse from a pulse generator for firing the thyristors is applied to them at the beginning of a prescribed period of conduction of the thyristor valve when voltage across the selected one of the thyristors is forward. An output signal of a current detector provides a firing pulse to all thyristors when the valve current exceeds a predetermined current value during the prescribed period of conduction of the thyristor valve.

REFERENCES:
patent: 3728557 (1973-04-01), Pelly et al.
patent: 3878448 (1975-04-01), Jackson et al.
patent: 3881147 (1975-04-01), Veda et al.
patent: 4084206 (1978-04-01), Leowald et al.
patent: 4084221 (1978-04-01), Ogata

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