Design and Implementation of Finite-Time Control for Speed Tracking of Permanent Magnet Synchronous Motors

Abstract

This letter investigates real-time implementation of a finite-time control for permanent magnet synchronous motors in the presence of external load disturbance. Firstly, an integral terminal sliding manifold is designed to achieve fast speed, high precision performance, and to enhance the quality of currents by reducing the total harmonic distortion. Indeed, the proposed surface manifold ensures a finite-time convergence of the speed state variable. Secondly, a switching control scheme is added for the system control to force the state systems to converge to their desired values in the presence of load disturbance. Finitetime stability is proved based on Lyapunov theory. Finally, the effectiveness of the designed controller is validated by carrying out real-time experimental studies using eZdspTM F28335 board. According to the experimental results, the proposed controller is easy to implement, improves tracking accuracy, reduces the chattering issues and ensures robustness against external load disturbance.

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“…Permanent-magnet synchronous motors (PMSMs) exhibit impressive features such as a high torque-to-inertia ratio, significant power density, lightweight design, and low maintenance requirements [1,2]. PMSMs are extensively utilized in various domains, including robotics [3], electric vehicles [4], and other industrial fields.…”

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“…Permanent magnet synchronous motors (PMSMs) have impressive features such as a high torque-to-inertia ratio, significant power density, lightweight design, and reduced maintenance requirements [6,7]. PMSMs are extensively utilized in various domains, including robotics [8], electric vehicles [9], and other industrial fields.…”

Finite-time anti-disturbance tracking control for flexible manipulator based on backstepping method and disturbance observer

“…In recent years, research on nonlinear control of systems has developed rapidly, driven by the growing need for advanced control techniques in complex engineering applications, such as aerospace, robotics, and automation. Many nonlinear control methods have been proposed, such as Backstepping control [1], Sliding mode control [2], Fuzzy control [3], Adaptive neural network control [4], Finite-time control [5], and so on. Among them, Finite-time control has the advantages of fast convergence, high tracking accuracy, and good robustness, and has received widespread attention [6].…”