Power system stabilizer scheduled by a fuzzy logic based supervisor from a local compensator network

Author

Da Costa, C. Tavares, Jr. ; Barreiros, J.A.L. ; de Oliveira, R.C.L. ; Barra, W., Jr.

Author_Institution

Departamento de Engenharia Eletrica, Univ. Fed. do Para, Belem, Brazil

Volume

2

fYear

2001

fDate

2001

Abstract

This work presents a digital adaptive power system stabilizer (PSS) which operates in a gain scheduling scheme. Its parameters are designed for several differently selected operating points in a PxQ plane (active and reactive powers), and saved offline under the form of a look-up table in the microcomputer that implements the control action. The complete set of all designed PSSs is called a local compensator network (LCN). During working, the a fuzzy logic based supervisor identifies the current operating point, and synthesizes the PSS parameters from the LCN. The test presented shows good performance for this PSS, when compared to a conventional (nonadaptive) one

Keywords

adaptive control; compensation; digital control; fuzzy control; pole assignment; power system stability; scheduling; PSS parameters; PxQ plane; adaptive control; digital adaptive power system stabilizer; fuzzy logic supervisor; gain scheduling scheme; local compensator network; look-up table; operating point; power system stabilizer scheduling; Control system synthesis; Fuzzy logic; Microcomputers; Network synthesis; Power system dynamics; Power system modeling; Power system stability; Power systems; State feedback; Table lookup;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Tech Proceedings, 2001 IEEE Porto

Conference_Location

Porto

Print_ISBN

0-7803-7139-9

Type

conf

DOI

10.1109/PTC.2001.964751

Filename

964751