Title :
Numerical investigation of the effect of valve reactor design on thyristor stress in a HVDC thyristor valve
Author :
Tadokoro, M. ; Yamamoto, Takayuki ; Shoji, Yozo ; Yamaji, Kazuhiro ; Irokawa, H.
Author_Institution :
Mitsubishi Electr. Corp., Hyogo
Abstract :
The overvoltage on the thyristor elements is of particular interest for practical design. Dependence of the behavior of the overvoltage on characteristics of the anode reactor was investigated mostly by numerical simulation by transient voltage program. The point in the valve, to which the core of the anode reactor is connected, critically changes the voltage that appears on the thyristor elements. The stray capacitance of the winding to the core is another important characteristic value. A structure supported thyristor valve for DC transmission of ±500 kV, 2800 MW was developed with the aid of the understanding about this voltage behavior
Keywords :
HVDC power convertors; anodes; capacitance; overvoltage; reactors (electric); thyristor convertors; transient analysis; 2800 MW; 500 kV; HVDC thyristor valve; HVDC transmission; anode reactor; equivalent circuit; numerical simulation; overvoltage; stray capacitance; structure supported thyristor valve; thyristor stress; transient voltage program; valve reactor design; Anodes; Capacitance; Equivalent circuits; HVDC transmission; Inductors; Numerical simulation; Stress; Thyristors; Valves; Voltage control;
Conference_Titel :
Transmission and Distribution Conference, 1996. Proceedings., 1996 IEEE
Conference_Location :
Los Angeles, CA
Print_ISBN :
0-7803-3522-8
DOI :
10.1109/TDC.1996.545954
