Title: New Static Var Compensator (SVC) based damping control using remote generator speed signal

Authors: Ran Peng, Rajiv K. Varma, Jin Jiang

Addresses: Department of Electrical and Computer Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada. ' Department of Electrical and Computer Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada. ' Department of Electrical and Computer Engineering, The University of Western Ontario, London, Ontario N6A 5B9, Canada

Abstract: Rapid advances in Wide-Area Measurement (WAM) and communication technologies have made the use of remote system data/signals for effective control and operation of power systems possible. This paper presents a new concept of damping control of Static Var Compensator (SVC) based on rotor speeds of remotely located generators. The concept is demonstrated in three study systems: a single machine infinite bus system, a two-area four-machine 11-bus system, and the Western System Coordinating Council (WSCC) three-machine nine-bus meshed system. The performance of the proposed remote generator speed signal is compared with the traditionally utilised local signals for SVC damping control through nonlinear time domain simulations. It is shown that the rotor speed of the remotely located generator that significantly participates in the lightly or negatively damped electromechanical mode of oscillation is the most effective SVC control signal in damping electromechanical oscillations in a power system.

Keywords: static var compensator; SVC; flexible AC transmission systems; FACTS; wide-area measurement; WAM; rotor angle stability; oscillation damping; power transfer capability; remote generators; speed signals.

DOI: 10.1504/IJETP.2006.009974

International Journal of Energy Technology and Policy, 2006 Vol.4 No.3/4, pp.255 - 273

Published online: 06 Jun 2006 *

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