Damping enhancement by TCSC in the Western US Power System

Author

Fan, Lingling ; Feliachi, Ali

Author_Institution

Dept. of Comput. Sci. & Electr. Eng., West Virginia Univ., Morgantown, WV, USA

Volume

1

fYear

2002

fDate

2002

Firstpage

550

Abstract

This paper presents a case study of inter-area oscillation damping enhancement in the Western US Power System (WSCC) by a thyristor controlled series capacitor (TCSC). First, siting of the TCSC is investigated, and then a robust damping controller, i.e. a controller that operates at various loading conditions, is designed. The proposed methodologies are based on transfer function residues. An index is given to identify the most effective signal to feedback, and a condition to guarantee control robustness is derived based on the phases of the residues. A reduced order model of the WSCC system is used to demonstrate the proposed techniques Specifically, a TCSC is recommended to dampen the WSCC near 0.7 Hz inter area modes.

Keywords

damping; oscillations; power capacitors; power system interconnection; power system stability; robust control; thyristor applications; transfer functions; TCSC; Western US Power System; control robustness; damping enhancement; feedback; inter-area oscillation damping enhancement; modal analysis; reduced order model; robust damping controller; thyristor controlled series capacitor; transfer function residues; Control systems; Damping; Feedback; Power capacitors; Power systems; Reduced order systems; Robust control; Signal processing; Thyristors; Transfer functions;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Society Winter Meeting, 2002. IEEE

Print_ISBN

0-7803-7322-7

Type

conf

DOI

10.1109/PESW.2002.985063

Filename

985063