Study of Stability Dynamic in a Multimachine Power System Using Robust Controllers PSS and POD

Author

Miotto, Ednei L. ; Covacic, Márcio R.

Author_Institution

Dept. of Electr. Eng., Londrina State Univ., Londrina, Brazil

fYear

2011

fDate

25-28 March 2011

Firstpage

1

Lastpage

5

Abstract

This manuscript presents an analysis of the dynamic performance of a multimachine power system in the presence of device Flexible AC Transmission Systems (FACTS) acting in conjunction with robust controllers. Model Power Sensitivity (PSM) is used to represent the multimachine power system. The design of the controllers Power System Stabilizers (PSS) and Power Oscillation Damping (POD) is performed so simultaneous and coordinated, and is based on robust control techniques. The method is structured in the form of linear matrix inequalities (LMIs). The controllers are found by solving the set of LMIs that describe the control problem. It is defined a minimum value of damping that is used as a performance index of closed-loop system. Simulations on a test system show the results about the stability of power system when subjected to small perturbations.

Keywords

closed loop systems; flexible AC transmission systems; linear matrix inequalities; oscillations; power system stability; power transmission control; robust control; FACTS; POD; PSS; closed-loop system; flexible ac transmission systems; linear matrix inequalities; model power sensitivity; multimachine power system; power oscillation damping; power system stabilizers; robust controllers; stability dynamic; Damping; Power capacitors; Power system dynamics; Power system stability; Robustness; Thyristors;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2011 Asia-Pacific

Conference_Location

Wuhan

ISSN

2157-4839

Print_ISBN

978-1-4244-6253-7

Type

conf

DOI

10.1109/APPEEC.2011.5748844

Filename

5748844