Application of an SVC to damp sub-synchronous interaction between wind farms and series compensated transmission lines

Author

Suriyaarachchi, D.H.R. ; Annakkage, U.D. ; Karawita, C. ; Kell, D. ; Mendis, R. ; Chopra, R.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Manitoba, Winnipeg, MB, Canada

fYear

2012

fDate

22-26 July 2012

Firstpage

1

Lastpage

6

Abstract

This paper demonstrates that wind farms connected to a grid through a series compensated transmission line may exhibit sub-synchronous oscillations. It is shown that the flux in the stator winding and the currents in the transmission line are the major participants of this mode. Dynamic Phasors are used to model the small signal model of the transmission network so that the network is accurately represented at sub-synchronous frequencies. An SVC is used to introduce damping to this oscillation mode, with line current as the feedback signal. The application is demonstrated for a large practical power system.

Keywords

machine windings; oscillations; stators; transmission networks; wind power plants; SVC; damp subsynchronous interaction; dynamic phasors; feedback signal; oscillation mode; power system; series compensated transmission lines; stator winding; subsynchronous oscillations; synchronous frequencies; transmission network; wind farms; Capacitors; Damping; Generators; Oscillators; Reactive power; Static VAr compensators; Wind farms; DFIG; SVC; Sub-synchronous interactions; damping controller; linearized model; small signal stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting, 2012 IEEE

Conference_Location

San Diego, CA

ISSN

1944-9925

Print_ISBN

978-1-4673-2727-5

Electronic_ISBN

1944-9925

Type

conf

DOI

10.1109/PESGM.2012.6344797

Filename

6344797