Bifurcations and loadability issues in power systems

Héctor A. Pulgar-Painemal, Peter W. Sauer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper deals with bifurcations and loadability issues in power systems. A single machine system with dynamic state space represented by a set of differential algebraic equations is considered. It is emphasized that this small system can give a first step in understanding the issues discussed in this paper. Using system loading as a bifurcation parameter and considering two methodologies for calculating system equilibrium points- specification of a fixed terminal voltage and a voltage-controller reference-the incidence of voltage imposed by the machine in the system stability is studied. The results of this paper reveal that careful attention must be paid to all methodologies for calculating equilibrium points, as some may obscure likely solutions in the state space. In addition, a proper adjustment of a machine voltage-controller reference can be exploited to provide relief to a system when it is operating close to collapse.

Original languageEnglish (US)
Title of host publication2009 IEEE Bucharest PowerTech
Subtitle of host publicationInnovative Ideas Toward the Electrical Grid of the Future
DOIs
StatePublished - Dec 1 2009
Event2009 IEEE Bucharest PowerTech: Innovative Ideas Toward the Electrical Grid of the Future - Bucharest, Romania
Duration: Jun 28 2009Jul 2 2009

Publication series

Name2009 IEEE Bucharest PowerTech: Innovative Ideas Toward the Electrical Grid of the Future

Conference

Conference2009 IEEE Bucharest PowerTech: Innovative Ideas Toward the Electrical Grid of the Future
Country/TerritoryRomania
CityBucharest
Period6/28/097/2/09

Keywords

  • Bifurcations
  • Dynamic systems
  • Voltage collapse
  • Voltage stability

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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