| Title |
A Study on Selection of Optimal Operating Point of Yangju 200MW BTB VSC HVDC |
| Authors |
이환익(Hwanol Lee) ; 현두수(Doosoo Hyun) ; 김지훈(Jihun Kim) |
| DOI |
https://doi.org/10.5370/KIEEP.2023.72.4.326 |
| Keywords |
BTB VSC HVDC; Line overload; Transmission loss; Preventive action scheme; Remedial action scheme |
| Abstract |
The metropolitan area system in Korea is experiencing various system stability problems due to large concentration of loads and non-expansion of transmission facilities. In particular, in the northern Gyeonggi area, there are operational difficulties such as bus separation operation due to an increase in fault current. Yangju 200MW BTB VSC HVDC is the first BTB VSC HVDC scheduled for commercial operation in Korea, and can play a role in reducing fault current in the northern Gyeonggi system through the grid separation effect of BTB VSC HVDC. In addition, excellent control capabilities of HVDC can improve various system stability. In this paper, we reviewed a method of selecting the optimal operating point of HVDC that can eliminate facility overload that may occur in the event of contingencies in the northern Gyeonggi area in addition to fault current and minimize system loss. |