Excitation control for large disturbances in power systems with dynamic loads

M. J. Hossain, H. R. Pota, V. Ugrinovskii, Rodrigo A. Ramos

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

19 Citations (Scopus)

Abstract

This paper presents a novel large-disturbance controller for power systems with significant induction motor (IM) load. Unlike the standard linearisation technique, a linearisation is used where the Cauchy remainder is included in the design process as a bounded uncertainty. Details of the process to obtain a bound on Cauchy remainder are given in the paper; the bound is used to design the robust minimax linear quadratic Gaussian (LQG) large-disturbance controller. An advantage of this approach over the existing linearisation scheme is the treatment of the nonlinear dynamic load model, in a rigorous framework, to design an excitation controller to enhance dynamic voltage stability. The efficacy of the proposed control strategy is evaluated through simulations on a benchmark four bus power system for various types of loads and large disturbances.

Original languageEnglish
Title of host publication2009 IEEE Power and Energy Society General Meeting, PES '09
Place of PublicationPistacaway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-8
Number of pages8
ISBN (Print)9781424442416
DOIs
Publication statusPublished - 2009
Externally publishedYes
Event2009 IEEE Power and Energy Society General Meeting, PES '09 - Calgary, AB, Canada
Duration: 26 Jul 200930 Jul 2009

Other

Other2009 IEEE Power and Energy Society General Meeting, PES '09
CountryCanada
CityCalgary, AB
Period26/07/0930/07/09

Keywords

  • Dynamic voltage stability
  • Induction motor
  • Linearisation
  • Nonlinearity
  • Robust excitation control

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