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Ensuring the stability of the Permanent Magnet Synchronous Motor (PMSM) is crucial for the smooth operation of drive systems. The behavior of PMSM can exhibit chaotic characteristics, particularly influenced by its initial operating conditions. Therefore, this paper addresses the stabilisation of chaotic PMSM system by using the concept of finite-time stability. For this purpose, three simple but effective controllers are proposed to suppress chaotic behavior in the machine. Performance evaluation of developed controllers has been presented by considering their settling time and peak overshoot. Developed controller models have been extensively simulated in the MATLAB environment. Further, practical validity has been accessed through real-time test results by using the Typhoon Hardware-in-the-loop (HIL) emulator. A closed agreement between simulation and real-time test results signify the efficacy and practical validity of the proposed controllers.
Iqbal et al. (Wed,) studied this question.