| Title |
LLC Resonant Converter with Two Transformers and Resonant Tanks |
| Authors |
Joo-Hoon Kim ; Sung-In Kang ; Eun-Soo Kim ; Yong-Suk Jun ; Jae-Sam Lee ; Dong-Young Huh |
| Keywords |
LLC resonant converter; High power density |
| Abstract |
KEPCO 80MVA UPFC has been operated in Gangjin Substation since May. 2003. This UPFC is composed of 40MVA shunt inverter and 40MVA series inverter, and developed in technical cooperation between Hyosung and Siemens. KEPCO has tried to localize UPFC control technique after its installation and developed GTO Thyristor Valve Test Equipment for annual maintenance test. The development of this equipment make it possible to process GTO Thyristor module test automatically and manage historic data systematically, which could improve UPFC reliability. |