SELF-TUNING CONTROLLER FOR GENERATOR EXCITATION CONTROL.

Daozhi Xia, G. T. Heydt

Research output: Contribution to journalArticle

92 Citations (Scopus)

Abstract

The design of an excitation self-tuning controller for a generator connected to an infinite bus through a long transmission line is presented. The control strategy is to minimize a cost function which incorporates fluctuations of input, output, and set point with the system parameters identified in real time by a recursive-least-squares algorithm. The penalty factor used in the cost function to penalize excessive control action is selected by analysis to enhance the system stability. The salient points of the controller are its adaptive nature and application of a least squares formulation as a parameter estimator. The proposed excitation controller enables the power system to be stable over a wide range of operating conditions from no load operation up to the transmission power limit determined by the transmission network itself. When the system is subjected to random disturbances, or a change occurs in the operating terminal voltage by resetting the set point, the excitation controller also exhibits excellent performance. These results are demonstrated by computer simulation studies.

Original languageEnglish (US)
Pages (from-to)1877-1885
Number of pages9
JournalIEEE Transactions on Power Apparatus and Systems
VolumePAS-102
Issue number6
StatePublished - Jun 1983
Externally publishedYes

Fingerprint

Tuning
Controllers
Cost functions
Electric power transmission networks
Power transmission
System stability
Electric lines
Computer simulation
Electric potential

ASJC Scopus subject areas

  • Engineering(all)

Cite this

SELF-TUNING CONTROLLER FOR GENERATOR EXCITATION CONTROL. / Xia, Daozhi; Heydt, G. T.

In: IEEE Transactions on Power Apparatus and Systems, Vol. PAS-102, No. 6, 06.1983, p. 1877-1885.

Research output: Contribution to journalArticle

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