AccScience Publishing / NSCE / Online First / DOI: 10.36922/NSCE026230019
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ORIGINAL RESEARCH ARTICLE

Chaos suppression, synchronization, and antisynchronization in a synchronous reluctance motor implemented on a microcontroller

Lucienne Makouo1 ,  Alain Francis Talla2 ,  Ferdinand Fogang3 ,  Oumate Alhadji Abba4* ,  Carnegie Langouo Lambou5
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1 Department of Civil Engineering and Architecture, National Higher Polytechnic Institute, University of Bamenda, Bamenda, Northwest Region , Cameroon
2 Department of Mechanical, Petroleum, and Gas Engineering, National Advanced School of Mines and Petroleum Industries, University of Maroua, Maroua, Far North Region , Cameroon
3 Department of Chemical Engineering, School of Chemical Engineering and Mineral Industries, University of Ngaoundere, Ngaoundere, Adamawa Region , Cameroon
4 Department of Physics, Faculty of Science, University of Maroua, Maroua, Far North Region , Cameroon
5 Department of Physics, Higher Teachers’ Training College of Maroua, The University of Maroua, Maroua, Far North Region , Cameroon
NSCE, 026230019 https://doi.org/10.36922/NSCE026230019
Received: 2 June 2026 | Revised: 3 September 2026 | Accepted: 5 September 2026 | Published online: 9 October 2026
© 2026 by the Author(s). This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution -Noncommercial 4.0 International License (CC-by the license) ( https://creativecommons.org/licenses/by-nc/4.0/ )
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Abstract

Synchronous reluctance motors (SRMs) are increasingly attractive for industrial drive applications because of their simple construction, robustness, and favorable efficiency characteristics. However, the nonlinear and time-varying nature of their electromechanical dynamics can give rise to complex behaviors, including chaotic oscillations and coexisting attractors, particularly under specific operating conditions and load torques. Such nonlinear phenomena may adversely affect the stability, performance, and controllability of the motor. Therefore, understanding and controlling chaos in synchronous reluctance motor systems, as well as establishing reliable synchronization mechanisms, is important for improving dynamic performance and practical implementation. This paper is devoted to the microcontroller execution, chaos suppression, synchronization, and antisynchronization in a synchronous reluctance motor with load torque (SRMLT). Microcontroller implementation of the SRMLT successfully verified the chaos and coexisting characteristics found in numerical simulations under certain conditions. By optimizing parameter values via a genetic algorithm, the chaotic trajectories of the SRMLT were controlled to one of its stable stationary states. Chaos synchronization of unidirectional coupled identical SRMLTs using the linear state-error feedback method was numerically demonstrated over a specific range of coupling strengths. Analytical calculations and numerical simulations demonstrated chaos synchronization and antisynchronization between identical drive and response SRMLTs using the nonlinear feedback method.

Graphical abstract
Keywords
Synchronous reluctance motor with load torque
Chaotic
Coexisting characteristics
Genetic algorithm
Synchronization
Antisynchronization
Funding
None.
Conflict of interest
The authors declare they have no competing interests.
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