Robust tuning of power system stabilizers using LMI-techniques

Author

Werner, Herbert ; Korba, Petr ; Yang, Tai Chen

Author_Institution

Control Syst. Center, Univ. of Manchester Inst. of Sci. & Technol., UK

Volume

11

Issue

1

fYear

2003

fDate

1/1/2003 12:00:00 AM

Firstpage

147

Lastpage

152

Abstract

In this paper, robust design and tuning of power system stabilizers is considered. A new approach is presented that utilizes recently developed techniques based on linear matrix inequalities (LMIs) for mixed H₂/H_∞-design under pole region constraints. Uncertainty about plant parameters - due to variations in generation and load patterns - is expressed in the form of a linear fractional transformation, and a systematic procedure for constructing the uncertainty representation is proposed. The design is easily carried out by solving a standard LMI problem. Simulation results on a single machine infinite bus model illustrate the method, and the results are compared with a recently proposed approach to the same problem based on quantitative feedback theory (QFT).

Keywords

H^∞ control; controllers; feedback; linear matrix inequalities; robust control; tuning; LMI-techniques; linear fractional transformation; linear matrix inequalities; load patterns; mixed H₂/H_∞-design; pole region constraints; power system stabilizers; quantitative feedback theory; robust design; robust tuning; simulation results; tuning; Damping; Linear matrix inequalities; Power system dynamics; Power system modeling; Power system simulation; Power system stability; Power systems; Robustness; Tuning; Uncertainty;

fLanguage

English

Journal_Title

Control Systems Technology, IEEE Transactions on

Publisher

ieee

ISSN

1063-6536

Type

jour

DOI

10.1109/TCST.2002.806449

Filename

1173020