제주 동기조상기 교체에 따른 계통안정성 영향 연구

The Affections of System Stability on Replacing the Synchronous Condenser in Jeju Island

  • 발행 : 2007.10.01

초록

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 peformed, 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.

키워드

참고문헌

  1. 김찬기, 장길수, 임성주, 추진부, 'HVDC와 전력전자', 생능출판사, 2006
  2. 한국전력거래소, '제주계통 정밀진단을 통한 적정 부하 차단량 산정 및 계통 안정화 방안', 05. 2007
  3. S.-G. Kang, S.-S. Seo, B. Lee, J.-Y Joo, J-C. Bae, 'A study on the determination of generation limits in the jeju system using generation continuation power flow(GCPF)', CIGRE regional meeting, 2007
  4. C.W.Tayor, Power System Voltage Stability. New York: McGrawHill, 1994
  5. P.Kundur, Power System Stability and Control. New York: McGrawHill, 1994
  6. V. Ajjarapu and C. Christy, 'The continuation power flow: A tool for steady-state voltage stability analysis,' IEEE Trans. Power Syst., vol. 7, pp. 416-423, Feb. 1992 https://doi.org/10.1109/59.141737
  7. J. Alexander, 'New continuation power flow tool for investigating the nonlinear effects of transmission branch parameter variations', IEEE Trans. Power Syst., vol. 15, pp. 223-227, Feb. 2000 https://doi.org/10.1109/59.852125