Damping of power system oscillations by excitation control using a current feedback signal

Author

Hamdan, H.M.A. ; Hamdan, A.M.A. ; Kahhaleh, B.

Author_Institution

Dept. of Electr. Eng., Jordan Univ., Amman, Jordan

Volume

136

Issue

3

fYear

1989

fDate

5/1/1989 12:00:00 AM

Firstpage

137

Lastpage

144

Abstract

Selective modal analysis combines information in the right as well as the left eigenvectors of the A matrix of a state space description to calculate participation factors of the modes in the state variables. It is shown that these participation factors provide a powerful tool for the evaluation and selection of a supplementary stabilising signal for excitation control. Using these factors, it is shown that a current signal is strongly coupled to the instability modes of hunting and subsynchronous resonance. Power system stabilisers utilising this signal are designed using frequency response methods. The effectiveness of the signal and the control scheme is demonstrated under small and large-scale disturbance conditions on the system.<>

Keywords

damping; feedback; frequency response; power system control; stability; current feedback signal; current signal; damping; excitation control; frequency response methods; hunting; instability modes; large-scale disturbance; participation factors; power system oscillations; power system stabilisers; selective modal analysis; small scale disturbance; state space description; subsynchronous resonance; supplementary stabilising signal; Feedback; Frequency response; Power system control; Stability;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings C

Publisher

iet

ISSN

0143-7046

Type

jour

Filename

18942