Damping inter-area oscillations by FACTS devices

Author

Ilea, Valentin ; Berizzi, Alberto ; Eremia, Mircea

Author_Institution

Univ. Politeh. of Bucharest, Bucharest, Romania

fYear

2009

fDate

1-4 Sept. 2009

Firstpage

1

Lastpage

5

Abstract

Poorly damped inter-area electromechanical oscillations are a common phenomenon in modern electric power systems. These modes may be damped by retuning the existing PSSs or by installing FACTS devices in key points in the system. This paper deals with the latter solution and a unified decentralized approach is considered: in a first step the modal sensitivity analysis is used to determine the optimal location of FACTS and then the residue method is applied to select the proper input signal of the controller and to tune it. The use of global signals as inputs leave the local modes unaltered.

Keywords

damping; flexible AC transmission systems; modal analysis; power system stability; sensitivity analysis; FACTS devices; PSS; damping; global signals; interarea electromechanical oscillations; modal sensitivity analysis; power system stabilisers; residue method; Damping; Differential algebraic equations; Eigenvalues and eigenfunctions; Optimal control; Power capacitors; Power system dynamics; Power systems; Sensitivity analysis; Static VAr compensators; Thyristors; FACTS; global signals; inter-area modes; small perturbation stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Universities Power Engineering Conference (UPEC), 2009 Proceedings of the 44th International

Conference_Location

Glasgow

Print_ISBN

978-1-4244-6823-2

Type

conf

Filename

5429521