An improved method for dynamic voltage collapse prediction in power system

Muhammad Nizam, Azah Mohamed, Aini Hussain

Research output: Contribution to journalArticle

Abstract

This paper presents an improved method for predicting dynamic voltage collapse in power systems by developing the power transfer stability index. The generator governor and excitation dynamics, induction motor and under load tap changer are considered in the simulation process. Time domain simulations using the PSAT software program has been carried out in this work. Several contingencies have also been considered in the simulations including real and reactive power load increase, line outage and generator outage. The proposed PTSI index has been investigated for its applicability in indicating proximity to voltage collapse. The performance of the index was tested using the thirty nine-bus test system and studied under various operating conditions. Simulation test results prove that the proposed PTSI index gives a better prediction of dynamic voltage collapse compared to the voltage collapse prediction index.

Original languageEnglish
Pages (from-to)179-186
Number of pages8
JournalInternational Energy Journal
Volume7
Issue number3
Publication statusPublished - Sep 2006

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Electric potential
Outages
Governors
Reactive power
Induction motors

Keywords

  • Dynamics
  • Time domain simulation
  • Voltage collapse
  • Voltage stability

ASJC Scopus subject areas

  • Energy(all)

Cite this

An improved method for dynamic voltage collapse prediction in power system. / Nizam, Muhammad; Mohamed, Azah; Hussain, Aini.

In: International Energy Journal, Vol. 7, No. 3, 09.2006, p. 179-186.

Research output: Contribution to journalArticle

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