Power system stabilizer design using optimization and pseudospectra

Author

Dill, Gustavo K. ; e Silva, Aguinaldo S.

Author_Institution

Dept. of Electr. Eng., Fed. Univ. of Santa Catarina, Florianopolis, Brazil

fYear

2011

fDate

19-23 June 2011

Firstpage

1

Lastpage

6

Abstract

In this paper, nonsmooth, nonconvex optimization is used to design power system stabilizers, to improve power system small-signal stability, considering nonstructured perturbations. This approach is suited to solve the problem of the design of low order controllers using output feedback. Two objective functions associated to the concept of pseudospectra are used as performance indices. The method is applied to the design of controllers for a test system, with two power system stabilizers and the design robustness and performance are evaluated.

Keywords

concave programming; feedback; power system control; power system stability; low order controllers; nonconvex optimization; nonsmooth optimization; nonstructured perturbations; output feedback; power system small-signal stability; power system stabilizer design; pseudospectra concept; Damping; Eigenvalues and eigenfunctions; Optimization; Power system stability; Robustness; Stability criteria; Small-signal stability; nonsmooth and nonconvex optimization; pseudospectrum;

fLanguage

English

Publisher

ieee

Conference_Titel

PowerTech, 2011 IEEE Trondheim

Conference_Location

Trondheim

Print_ISBN

978-1-4244-8419-5

Electronic_ISBN

978-1-4244-8417-1

Type

conf

DOI

10.1109/PTC.2011.6019377

Filename

6019377