Title: Power quality improvement of WEGCS using STATCOM-based EC techniques

Authors: M.A. Elhamed Zaki; Mohamed I. Mosaad; Mohamed G. Ashmawy; Al-Said Abd Elaziz Osman

Addresses: Higher Institute of Engineering, El Shorouk City, Egypt ' Higher Technological Institute, P.O. Box 30436, Yanbu Al-Siniyiah, Kingdom of Saudi Arabia ' Higher Institute of Engineering, El Shorouk City, Egypt ' Al-Azhar University, 2181 Zahraa Nasr City, Egypt

Abstract: This article presents an improvement of power quality of wind energy grid-connected systems (WEGCS) using shunt connected static synchronous compensator (STATCOM); since the injection of wind farm produces power quality problems. STATCOM as a type of flexible AC transmission system (FACTS) at the point of common coupling (PCC) between the grid and the wind system is implied to regulate the system of terminal voltage during side disturbances like voltage swelling and voltage sagging. The PI controller is used to regulate the injected reactive power based on the voltage control loop of the STATCOM at PCC. The PI controller of STATCOM used in this article is tuned by genetic algorithm (GA) and particle swarm optimisation (PSO). Simulation results illustrates the capability of STATCOM to adjust the voltage at PCC during different disturbances, moreover the superiority of PSO over GA in terms of control measures. The proposed validity system is achieved using MATLAB/SIMULINK package.

Keywords: wind energy grid-connected systems; WEGCS; static synchronous compensator; STATCOM; point of common coupling; PCC; flexible AC transmission system; FACTS; particle swarm optimisation; PSO; genetic algorithm; GA; PI controller.

DOI: 10.1504/IJIED.2017.087613

International Journal of Industrial Electronics and Drives, 2017 Vol.3 No.4, pp.229 - 237

Received: 25 Apr 2017
Accepted: 08 Jun 2017
Published online: 23 Oct 2017 *

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