Title: Adaptive particle swarm optimisation of unified power flow controller for synchronous generator stabilisation

Authors: P.K. Dash, P.K. Rout, B.K. Panigrahi, M.H. Naeem

Addresses: Silicon Institute of Technology, Bhubaneswar, India. ' Silicon Institute of Technology, Bhubaneswar, India. ' Department of Electrical Engineering Indian Institute of Technology, Delhi, India. ' Faculty of Engineering, Multimedia University, 100 Cyberjaya, Malaysia

Abstract: The real and reactive power flow in a transmission line can be instantaneously controlled by a pair of back-to-back power electronic converters, called a Unified Power Flow Controller (UPFC). This paper presents a novel optimal PI controller for UPFC to enhance the dynamic performance of UPFC as well as for synchronous generator stabilisation. The optimal PI controller based on Particle Swarm Optimisation (PSO) is obtained for a wide range of operating conditions of the system as well as for a variety of disturbances. The operating constraints of the UPFC are considerably practical constraints during the operation of the UPFC in a real power system. The control strategy is based on dq-axis theory. Comprehensive computer simulations are carried out to verify the proposed control scheme.

Keywords: UPFC; unified power flow controller; FACTS; flexible AC transmission systems; operating constraints; PSO; particle swarm optimisation; power electronic converters; PI controllers; disturbances; control strategy; simulation.

DOI: 10.1504/IJAAC.2009.023073

International Journal of Automation and Control, 2009 Vol.3 No.1, pp.91 - 109

Published online: 08 Feb 2009 *

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