Mobile QR Code QR CODE : The Korean Institute of Power Electronics
Title A New Synthetic Test Circuit for Testing Thyristor Valve in HVDC Converter
Authors Kyeong-Tae Kim ; Byung-Moon Han ; Jae-Hun Jung ; Eui-Cheol Nho ; Yong-Ho Chung ; Seung-Taek Baek
DOI 10.6113/TKPE/2012.17.3.191
Page pp.191-197
ISSN 1229-2214
Keywords STC(Synthetic Test Circuit); HVDC(High Voltage DC) transmission; 6-pulse thyristor converter 2-phase chopper; test valve; auxiliary switching circuit
Abstract This paper proposes a new synthetic test circuit (STC) to confirm the switching operation of thyristor valve in HVDC converter. The proposed STC uses a 6-pulse thyristor converter with 2-phase chopper as a high-current source to provide turn-on current to the test valve. The operation of proposed STC was verified through theoretical analysis and computer simulations. Based on computer simulations, a hardware scaled model was built and tested to confirm the feasibility of implementing a real-size test facility. The proposed system has an advantage of simple structure and operation over the existing system.