Coordinated voltage-reactive power control schemes based on PMU measurement at automated substations

Yun Hyuk Choi, Sang Gyun Kang, Byong Jun Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)


This paper deals with methodology to control an automatic substation system. The control system can predict the power system condition by a voltage stability index (VSI). The strategies in this paper is called as Voltage-Reactive Power Control (VRPC), which regulates an abnormal voltage of a target substation by using coordination between tap changers and shunt capacitor/reactor. This method is efficient for better voltage profile. The monitoring substation includes whole of substations around the contingency event. The control quantities of the monitoring substations are decided by the calculation of the VSI, called as a Z-index. Case studies with BC Hydro-Quebec system are presented to illustrate this approach using real-time simulator.

Original languageEnglish
Pages (from-to)1400-1407
Number of pages8
JournalJournal of Electrical Engineering and Technology
Issue number4
Publication statusPublished - 2015 Jul 1



  • Coordinated control
  • PMU
  • V-Q plane
  • VRPC
  • VSI

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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