Title: Particle swarm optimisation for power quality improvement of a 12-pulse rectifier-chopper fed LCI-synchronous motor drive

Authors: Sanjeev Singh; Bhim Singh

Addresses: EIE Department, SLIET Longowal, Sangrur, Punjab, India ' Electrical Engineering Department, IIT Delhi, Hauz Khas, New Delhi, India

Abstract: This paper investigates the optimised passive filter combination for power quality improvement of a 12-pulse rectifier-chopper fed load commutated inverter (LCI) based synchronous motor (SM) drive. The search of optimised component values of passive filter combination is carried out by a modified particle swarm optimisation (PSO) algorithm with an objective of reduction in total harmonic distortion (THD) and improvement in power factor (PF) of AC mains current. The proposed PSO algorithm is formulated and implemented in the MATLAB-SIMULINK environment for three varieties of loads on LCI-SM drive, namely constant torque variable speed loads, constant speed variable torque load and variable speed variable torque load to meet the requirements in wide range of applications. The obtained results show considerable improvement in the power quality at the input AC mains of the LCI-SM drives for all varieties of loads and presents a basis for selection of a suitable passive filter combination.

Keywords: particle swarm optimisation; PSO; power quality improvement; passive filters; LCI; load commutated inverters; 12-pulse converters; diode rectifiers; chopper; synchronous motors; total harmonic distortion; THD; power factor; AC mains current; constant torque; variable speed; constant speed; variable torque.

DOI: 10.1504/IJISTA.2012.052513

International Journal of Intelligent Systems Technologies and Applications, 2012 Vol.11 No.3/4, pp.267 - 285

Received: 15 Feb 2012
Accepted: 26 Nov 2012
Published online: 06 Mar 2013 *

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