Application of a STATCOM for damping subsynchronous oscillations and transient stability improvement

Author

Abdou, A.F. ; Abu-Siada, A. ; Pota, H.R.

Author_Institution

Sch. of Eng. & Inf. Technol. (SEIT), Univ. of New South Wales at ADFA, Canberra, ACT, Australia

fYear

2011

fDate

25-28 Sept. 2011

Firstpage

1

Lastpage

5

Abstract

This paper investigates the effect of STATCOM in stabilising multi-mode torsional oscillations of sub-synchronous resonance (SSR) of a large turbine-generator set. The study is performed on system-1 of the second IEEE benchmark model for computer simulation of subsynchronous resonance. The application of the STATCOM in improving transient stability in power systems is described as well. EMTDC/PSCAD is used to simulate the system under study. Due to its simplicity, robustness and ease implementation, proportional integral (PI) controller along with auxiliary feedback signals are used to control the inverter firing angle and hence control the reactive power exchange between the AC system and the STATCOM.

Keywords

PI control; feedback; oscillations; reactive power control; static VAr compensators; EMTDC-PSCAD; IEEE benchmark model; PI controller; STATCOM; auxiliary feedback signals; multimode torsional oscillations; power systems; proportional integral controller; reactive power exchange; sub-synchronous resonance; subsynchronous oscillations damping; transient stability; turbine-generator; Automatic voltage control; Damping; Generators; Oscillators; Power system stability; Reactive power; Stability analysis; PI controller; STATCOM; Subsynchronous Resonance (SSR); transient stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference (AUPEC), 2011 21st Australasian

Conference_Location

Brisbane, QLD

Print_ISBN

978-1-4577-1793-2

Type

conf

Filename

6102527