The affections of system stability on replacing the synchronous condenser in Jeju Island

Byunghoon Chang, Jongsuyoon, Jeongyeol Han, Jeongwoon Shim, Sanggyun Kang, Byongjoon Lee

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


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.

Original languageEnglish
Pages (from-to)1715-1720
Number of pages6
JournalTransactions of the Korean Institute of Electrical Engineers
Issue number10
Publication statusPublished - 2007 Oct


  • CPF
  • CSC-based HVDC system
  • ESCR
  • Jeju system
  • Synchronous condenser

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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