Title :
Behavior of HVDC Thyristor Valve on the Critical Turn-Off Condition and Optimized Gate Firing System
Author :
Imai, K. ; Kobayashi, S. ; Senda, T.
Author_Institution :
Fuchu Works, Toshiba Corporation
Abstract :
When a thyristor valve is operated in a current discontinuity mode, one or more thyristor devices of the valve can be overstressed due to the critical, turn-off phenomena. An adequate gate firing s stem is indispensable to y prevent such a thyristor contingency. In thi. s paper, a thyristor critical turn-off is discussed in detail and the optimized gate system is presented with the demonstration of site test carried out in Hokkaido ¿Honshu HVDC link in Japan.
Keywords :
Design optimization; HVDC transmission; Inverters; Power transmission; Space vector pulse width modulation; Stress; System testing; Thyristors; Valves; Voltage;
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
DOI :
10.1109/TPAS.1982.317409
