An LMI-SSI model based PSS design approach for a multi-machine power system

Author

Ke Tang ; Venayagamoorthy, Ganesh K.

Author_Institution

Dept. of Electr. & Comput. Eng., Clemson Univ., Clemson, SC, USA

fYear

2015

fDate

10-13 March 2015

Firstpage

1

Lastpage

7

Abstract

In recent days, as power systems are operated close to the stability margin, oscillation caused by lack of damping torque is frequently observed. Power System Stabilizer (PSS) enhances generator stability by providing a supplementary signal to the automatic voltage regulator which enhances the damping torque. Stochastic Subspace Identification (SSI) algorithm is applied to obtain a linearized single-input-multiple-output model of a power system and the Linear Matrix Inequality (LMI) approach is then used to design several PSSs. Typical results are presented for the LMI-SSI model based PSS design on the IEEE 68 16- machine power system.

Keywords

damping; electric generators; linear matrix inequalities; power system stability; stochastic processes; torque; voltage regulators; IEEE 68 16-multimachine power system; LMI-SSI model; PSS design approach; automatic voltage regulator; damping torque; generator stability margin enhancement; linear matrix inequality approach; linearized single-input-multiple-output model; oscillations; power system stabilizer; stochastic subspace identification algorithm; supplementary signal; Damping; Generators; Mathematical model; Oscillators; Power system stability; Transfer functions; Damping Control; Linear Matrix Inequality; Power System Stabilizer; Robust Design;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Systems Conference (PSC), 2015 Clemson University

Conference_Location

Clemson, SC

Type

conf

DOI

10.1109/PSC.2015.7101715

Filename

7101715