Title :
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
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;
Conference_Titel :
PowerTech, 2011 IEEE Trondheim
Conference_Location :
Trondheim
Print_ISBN :
978-1-4244-8419-5
Electronic_ISBN :
978-1-4244-8417-1
DOI :
10.1109/PTC.2011.6019377
