K.A. El-Metwally

Work place: Department of Electrical Engineering, Cairo University, Cairo, Egypt

E-mail: kametwally@gmail.com


Research Interests: Computer systems and computational processes, Solid Modeling, Combinatorial Optimization, Control Theory


Khaled A. El-Metwally (M’95) received his B.Sc. and M.Sc. from Cairo University 1987 and 1990, respectively. In 1994 he received his PhD from University of Calgary, Canada. He is an Associate Professor in Cairo University, Egypt and currently in leave to Sultan Qaboos University, Oman. His research interests include intelligent control systems, optimization, modeling, PLC systems, SCADA systems and power systems stability and control. Dr. Khaled EL-Metwally is the Middle East regional editor of the International Journal of Modeling Identification and Control (IJMIC).

Author Articles
Design of Decentralized Fuzzy Logic Load Frequency Controller

By K. A. Ellithy K.A. El-Metwally

DOI: https://doi.org/10.5815/ijisa.2012.02.08, Pub. Date: 8 Mar. 2012

This paper presents a novel approach for designing a decentralized controller for load frequency control of interconnected power areas. The proposed fuzzy logic load frequency controller (FLFC) has been designed to improve the dynamic performance of the frequency and tie line power under a sudden load change in the power areas. The effect of generation rate constraint (GRC) for both areas has been considered in the controller design. The proposed FLFC consists of two internal fuzzy logic controllers namely, the PD-like fuzzy logic controller and the PI-like fuzzy logic controller. The FLFC has been co-coordinated with the conventional integral controller. Time-domain simulations using MATALB/SIMULINK program has been performed to demonstrate the effectiveness of the proposed FLFC. The simulation results show that the proposed FLFC can provide good damping and reduce the overshoot even in the presence of the GRC.

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