AC 및 DC 송전 선로 병렬 연계에 따른 정상상태 커플링 영향 분석

The application of the AC and DC lines on the same transmission tower is an economical and practical approaching that increase the power transmission capacity of an existing transmission corridor. But, In this case, Inductive and capacitive coupling between AC and DC lines on the same tower should be investigated in advance. According to the installation plan of 80kV ±60MW bipole HVDC in Cheju, KOREA that will be commissioned until 2011, DC lines will parallely operate with 154㎸ 2 AC lines in existed 154㎸ AC 4 lines transmission tower. This paper presents the steady state analysis results about the interaction between 154㎸ AC and 80kV DC lines in the same transmission tower.