Informatics Publishing Limited

Mohammad Esmaeilzade Shahri ¹, Saeed Balochian ², Hossein Balochian ³, Yudong Zhang ⁴

Affiliations
1 Department of Electrical Engineering, Gonabad Branch, Islamic Azad University, Gonabad, IR
2 Department of Electrical Engineering, Gonabad Branch, Islamic Azad University, Gonabad
3 Department of Computer Engineering, Ilam Branch, Islamic Azad University, Ilam, IR
4 School of Computer Science and Technology, Nanjing Normal University, Jiangsu, 210023, CN

Abstract

This paper aims to club on the scheme of Fractional-Order Proportional-Integral-Derivative (FOPID) controllers for time delay systems. The way is based on a composition of the DE algorithm and the Smith predictor control method to arrive meliorated control efficiency of the time delay process. Lately, Differential Evolution (DE) has been transpired as an ordinary but very powerful materiel for real parameter optimization. Parameters of FOPID controllers consisted proportionality constant, integral constant, derivative constant, derivative order and integral order, thus its scheme is more intricate than that of conventional integer-order Proportional-Integral-Derivative (PID) controller. Manufacturing of the controller portrayed here is based on user- specified peak overshoot and settling time and has been formulated as a single objective optimization issue. Finally, better simulation results and control performance of the Fractional-Order PID (FOPID) will be showed in these controllers in collation with those of the integer-order PID controllers.

Keywords

Differential Evolution, Fractional Order PI^λD^μ Controller, Smith Predictor Control, Time Delay System

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