Dynamic voltage stability reserve studies for deregulated environment

Research output: Contribution to journalArticle

12 Citations (Scopus)


This paper first analyzes why voltage instability occurs in mature yet competitive power systems, and then investigate diverse voltage stability issues in deregulated power markets using a commercial transient simulation program EUROSTAG. Dynamic behaviors of major power system components, i.e., speed governor, excitation element, inductive motor, ULTC and mechanically switched shunt capacitor et al, are thoroughly examined by a small yet typical equivalent system. The presented simulation results help better understand the mechanism of the voltage collapse phenomena, and highlight the importance of dynamic reactive reserves, like generators, in dynamic voltage stability enhancement.

Original languageEnglish
Article number59
Pages (from-to)301-306
Number of pages6
JournalProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Issue numberSUMMER
Publication statusPublished - 1 Jan 2001
Externally publishedYes



  • Dynamics
  • Reactive power capability
  • Time domain simulation
  • Voltage stability

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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