Title :
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
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;
Conference_Titel :
Power Engineering Society Winter Meeting, 2002. IEEE
Print_ISBN :
0-7803-7322-7
DOI :
10.1109/PESW.2002.985063
