POWER CONTROL AND OPTIMIZATION: Proceedings of the 7th Global Conference on Power Control and Optimization

Conference date: 27–28 August and 2-3 December 2013

Location: Prague (Czech Republic) and Yangon (Myanmar)

ISBN: 978-983-44483-63

Editors: Ivan Zelinka, Zeya Oo and Nader Barsoum

Volume number: 2008

Published: 21 April 2013

Optimal Tuning of PID Controller in Automatic Voltage Regulator System using Improved Harmony Search Algorithm

Bendjeghaba. O, Ishak Boushaki. S

PCO Conf-Proc 2008 (2013), - PDF

Abstract. This paper presents a new tuning approach based on an Improved Harmony Search algorithm (IHSA) to obtain the proportional-integral-derivative (PID) controller parameters in Automatic Voltage Regulator (AVR) system. In the tuning processes the IHSA is iterated to reach the optimal or the near optimal of PID controller parameters when the main goal is to improve the AVR step response characteristics. Conducted simulations show the effectiveness and the efficiency of the proposed approach. Furthermore it can improve the dynamic of the AVR system. The results analysis reveals that the new approach is able to find better control system performances compared with that of the particle swarm optimization (PSO).