Autonomous damping controller design for power system oscillations

Hui Ni, G. T. Heydt, R. G. Farmer

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

10 Scopus citations


This paper concerns the use of the autonomous concept of control structures to design damping controllers in large power systems. The concept is to use hierarchical structures in conjunction with a power system stabilizer (PSS) to add damping to the system. The term autonomous refers to self-governance and independent operation, including the case of uncertainty in input data and partial controller failure. The autonomous control concept adds considerable system strength and allows some measure of self-healing of the interconnected power system. The traditional PSS is the local control of generators, utilizing local signals such as frequency, accelerating power and speed deviation. However, if wide area, remote signals are added to these inputs, it may be possible to develop a higher level controller with superior small-signal stability characteristics. A possible configuration of such a higher level, 'super PSS' autonomous structure is suggested in this paper. The objectives of a 'super PSS' and relative methods used to achieve these objectives are presented here. The performance of the new design is studied using a two-area, four-generator interconnected power system example.

Original languageEnglish (US)
Title of host publicationProceedings of the IEEE Power Engineering Society Transmission and Distribution Conference
Number of pages6
StatePublished - 2000
EventProceedings of the 2000 Power Engineering Society Summer Meeting - Seattle, WA, United States
Duration: Jul 16 2000Jul 20 2000


OtherProceedings of the 2000 Power Engineering Society Summer Meeting
Country/TerritoryUnited States
CitySeattle, WA


  • Autonomous control
  • Autoregressive moving average (ARMA)
  • Hierarchical control
  • Inter-area oscillations
  • Power system stabilizer (PSS)

ASJC Scopus subject areas

  • General Engineering
  • General Energy


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