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        제주 동기조상기 교체에 따른 계통안정성 영향 연구

        張秉勳(Byunghoon Chang),尹鍾秀(Jongsu yoon),韓正烈(Jeongyeol Han),沈鼎雲(Jeongwoon Shim),姜尙均(Sanggyun Kang),李炳峻(Byongjoon Lee) 대한전기학회 2007 전기학회논문지 Vol.56 No.10

        The CSC-based HVDC system links the Jeju system to the mainland system. Because CSC-based HVDC is installed in Jeju, the reactive power is needed to transfer active power through the HVDC. In order to supply reactive power, switched capacitors and synchronous condensers are installed in Jeju system. The deterioration of established synchronous condensers, however, causes a reactive power supply capability decline and high maintenance cost. It brings about the instability of Jeju system and the incremental of maintenance and repair costs. In the future the installation of wind generators and additional HVDC system would aggravate the stability of Jeju system. Therefore, it needs to consider a countermeasure against above problems. In this paper, Analysis of several contingencies of Jeju system was performed, and some contingencies caused voltage-reactive power problem was known. CPF method was introduced in order to make countermeasures to replace the synchronous condensers and to solve the voltage-reactive power problem. The location and capacity of reactive power sources were also decided. It could guarantee medium and long term stability of Jeju system.

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