Title: Speed control of switched reluctance motor by genetic algorithm-based optimal H-infinity control approach

Authors: A. Rajendran; S. Padma

Addresses: Department of EEE, Sona College of Technology, Salem 636005, Tamilnadu, India ' Department of EEE, Sona College of Technology, Salem, India

Abstract: In classical H-infinity control technique, the uncertainties have parameters namely model error and variation outer disorder. But, the H-infinity control technique is an external control technique. The weight of the transfer function matrix is changed at different system state. Therefore, an optimal control weight is needed to make the system robust. The process of finding optimal control weight is complex because the H-infinity control process is a closed loop controller. To overcome these difficulties, in this paper, an optimal H-infinity control concept is proposed. In the proposed control procedure, the optimal transfer function matrix weight is obtained by genetic algorithm (GA) which is an efficient optimisation algorithm. The proposed method is implemented in MATLAB and the speed of the SRM is controlled. Then the weight noise setting is obtained for every time instant. The optimal weight noise setting can be attained by H-infinity optimal control using GA approach.

Keywords: switched reluctance motor; SRM; speed control technique; optimal H-infinity control; robustness; genetic algorithm; GA.

DOI: 10.1504/IJMTM.2021.121570

International Journal of Manufacturing Technology and Management, 2021 Vol.35 No.5, pp.407 - 421

Received: 01 Dec 2016
Accepted: 05 Nov 2017

Published online: 21 Mar 2022 *

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