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Sadhana

, Volume 18, Issue 5, pp 843–868 | Cite as

Low frequency oscillations in power systems: A physical account and adaptive stabilizers

  • D P Sen Gupta
  • Indraneel Sen
Article

Abstract

This paper presents a physical explanation of the phenomenon of low frequency oscillations experienced in power systems. A brief account of the present practice of providing fixed gain power system stabilizers (PSS) is followed by a summary of some of the recent design proposals for adaptive PSS. A novel PSS based on the effort of cancelling the negative damping torque produced by the automatic voltage regulator (AVR) is presented along with some recent studies on a multimachine system using a frequency identification technique.

Keywords

Power system stability frequency identification adaptive stabilizers 

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Copyright information

© Indian Academy of Sciences 1993

Authors and Affiliations

  • D P Sen Gupta
    • 1
  • Indraneel Sen
    • 1
  1. 1.Department of Electrical EngineeringIndian Institute of ScienceBangaloreIndia

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