Title: Robust DC-motor speed control using a fractional adaptive PI^α regulator

Authors: Yassine Bensafia; Khatir Khettab; Samir Ladaci

Addresses: Department of Electrical Engineering, Bouira University, Bouira 10000, Algeria ' Department of Electrical Engineering, University of M'sila, Mohamed Boudiaf, M'sila 28000, Algeria ' SP-Lab Laboratory, University of Mentouri Brothers Constantine 1, Constantine 25000, Algeria; National Polytechnic School of Constantine, Depart. E.E.A., Nouvelle ville Ali Mendjli, Constantine, 25100, Algeria

Abstract: Conventional adaptive PI controller is one of the most widely used controllers in industry, but the recent advancement in fractional calculus has introduced applications of fractional order calculus in control theory. One of the prime applications of fractional calculus is fractional adaptive PI controller and it has received a considerable attention in academic studies and in industrial applications. Fractional order adaptive PI controller is an advancement of classical integer order adaptive PI controller. In many a cases fractional order adaptive PI controller has outperformed classical integer order adaptive PI controller. Particularly for the problem of controlling the speed of DC-motors, it is very important use a suitable and efficient controller as any small change can lead to instability of the closed loop system. This research paper, studies the control aspect of fractional order controller in speed control of DC motor. A comparative study of classical adaptive PI controller and fractional order adaptive PI controller has been performed to illustrate the effectiveness and robustness of the proposed fractional adaptive control solution.

Keywords: adaptive control; fractional order control; FOC; fractional order integral; robust control; fractional PI^α regulator.

DOI: 10.1504/IJDSSS.2017.088055

International Journal of Digital Signals and Smart Systems, 2017 Vol.1 No.2, pp.129 - 142

Received: 20 Dec 2016
Accepted: 27 Feb 2017
Published online: 20 Nov 2017 *

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