Target operation voltage guidelines considering voltage level in each voltage control area by applying optimization technique through EMS data observation

Ung Sung, Jaewon Kim, Taegyun Kim, Byongjun Lee, Eungsoo Jung, Jongman Cho

Research output: Contribution to journalArticle


This paper presents target operation voltage guidelines of each voltage control area considering both voltage stability and economical efficiency in real power system. EMS(Energy Management System) data, Real-time simulator, shows not only voltage level but lots of information about real power system. Also this paper performs optimal power flow calculation of three objective functions to propose the best target operation voltage. Objective function of interchange power flow maximum and active power loss minimization stand for economical efficiency index and reactive power reserve maximum objective function represents stability index. Then through simulation result using optimazation technique, the most effective objective function is chosen. To sum up, this paper divides voltage control area into twelve considering electric distance characteristics and estimate for voltage level by the passage of time of EMS peak data. And through optimization technique target operation voltage of each voltage control area is estimated and compare their result. Then it is proposed that the best scenario to keep up voltage stability and maximize economical efficiency in real power system.

Original languageEnglish
Pages (from-to)671-678
Number of pages8
JournalTransactions of the Korean Institute of Electrical Engineers
Issue number4
Publication statusPublished - 2009 Apr 1



  • Optimization
  • Voltage control area
  • Voltage guidelines
  • Voltage level

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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