HVDC 운영 전략에 따른 제주 전력 계통의 출력제어 및 운영비용 분석

Abstract

The proportion of renewable power generation in power systems is rapidly increasing, resulting in frequent imbalances. This paper focuses on the impact of renewable energy penetration on power system stability in Jeju, South Korea, under the CFI 2030 policy. With the increase in renewable energy sources, power variability has also increased due to their intermittent nature, leading to supply and demand imbalances and system stability problems. Traditional methods of maintaining power balance, such as curtailment, result in cost and environmental losses for system operators. To address this issue, the paper proposes the use of HVDC power reversal transmission strategies to return excess power from Jeju to the mainland power system. The study analyzes the impact of three operational strategies of HVDC on unit commitment results, considering cost and environmental factors. The results suggest that using HVDC can mitigate curtailment and reduce oversupply, leading to improved power system stability in Jeju island.