Robust redesign of power system damping controllers

Author

Taranto, Glauco N. ; Chow, Joe H. ; Othman, Hisham A.

Author_Institution

Dept. of Electr. Comput. & Syst. Eng., Rensselaer Polytech. Inst., Troy, NY, USA

Volume

3

Issue

3

fYear

1995

fDate

9/1/1995 12:00:00 AM

Firstpage

290

Lastpage

298

Abstract

This paper presents a model-matching robustness design procedure based on H_∞-optimization theory for the robust redesign of nominal controllers. The approach directly uses a control law designed for the nominal operating condition and tunes the nominal control law to enhance the robustness with respect to the off-nominal operating conditions. The procedure is applied to the design of a power system stabilizer (PSS) for a single-machine infinite-bus system which has a range of possible operating conditions. The results show that the redesigned controller contains features similar to the nominal controller, but yet improves significantly the damping of the machine swing modes at the off-nominal conditions

Keywords

H^∞ control; control system synthesis; power system control; power system stability; robust control; H_∞-optimization theory; machine swing modes; model-matching robustness design procedure; off-nominal conditions; power system damping controllers; power system stabilizer; robust redesign; single-machine infinite-bus system; Control systems; Damping; Design engineering; Power engineering and energy; Power system control; Power system modeling; Power systems; Robust control; Robustness; Uncertainty;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/87.406976

Filename

406976