Advanced precision tracking control for permanent magnet linear synchronous motors utilizing a novel global dynamic fractional order sliding mode

IF 4.6 2区计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS

Control Engineering Practice Pub Date : 2025-09-10 DOI:10.1016/j.conengprac.2025.106565

XinYu Zhao , LiMei Wang , Zelai Xu , Weiyu Wang

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引用次数: 0

Abstract

This paper proposes a novel dynamic fractional order super-twisting terminal sliding mode control method aimed at suppressing the effects of undesired nonlinear dynamics, unstructured uncertainties, parameter mismatch and disturbance load on the PMLSM system performance, realizing high-precision tracking control with strong robustness. Firstly, a dynamic model of the system is developed, taking into account nonlinear friction and uncertainty. Then, combining the principles of fractional order and terminal sliding mode control, using the exponential function with tracking error as the independent variable as the control gain of the fractional order component, the fractional-order dynamic terminal sliding mode manifold is proposed, which achieves rapid convergence and a smooth transition process. Meanwhile, to address complex uncertainties of the system, a dynamic super-twisting algorithm, grounded in Lyapunov theory, is formulated. This algorithm allows for global dynamic adjustment and precise compensation for uncertainties and disturbances. Finally, simulation and experimental results demonstrate that the proposed method outperforms existing controllers in terms of tracking accuracy and robustness.

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基于新型全局动态分数阶滑模的永磁直线同步电机先进精确跟踪控制

本文提出了一种新的动态分数阶超扭终端滑模控制方法，旨在抑制非期望的非线性动力学、非结构不确定性、参数失配和扰动负载对永磁同步电机系统性能的影响，实现高精度、强鲁棒性的跟踪控制。首先，建立了考虑非线性摩擦和不确定性的系统动力学模型。然后，结合分数阶和终端滑模控制原理，以跟踪误差为自变量的指数函数作为分数阶分量的控制增益，提出了分数阶动态终端滑模流形，实现了快速收敛和平滑过渡过程。同时，针对系统的复杂不确定性，提出了一种基于李亚普诺夫理论的动态超扭转算法。该算法允许全局动态调整和对不确定性和干扰的精确补偿。仿真和实验结果表明，该方法在跟踪精度和鲁棒性方面都优于现有的控制器。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Control Engineering Practice 工程技术-工程：电子与电气

CiteScore

9.20

自引率

12.20%

发文量

183

审稿时长

44 days

期刊介绍： Control Engineering Practice strives to meet the needs of industrial practitioners and industrially related academics and researchers. It publishes papers which illustrate the direct application of control theory and its supporting tools in all possible areas of automation. As a result, the journal only contains papers which can be considered to have made significant contributions to the application of advanced control techniques. It is normally expected that practical results should be included, but where simulation only studies are available, it is necessary to demonstrate that the simulation model is representative of a genuine application. Strictly theoretical papers will find a more appropriate home in Control Engineering Practice''s sister publication, Automatica. It is also expected that papers are innovative with respect to the state of the art and are sufficiently detailed for a reader to be able to duplicate the main results of the paper (supplementary material, including datasets, tables, code and any relevant interactive material can be made available and downloaded from the website). The benefits of the presented methods must be made very clear and the new techniques must be compared and contrasted with results obtained using existing methods. Moreover, a thorough analysis of failures that may happen in the design process and implementation can also be part of the paper. The scope of Control Engineering Practice matches the activities of IFAC. Papers demonstrating the contribution of automation and control in improving the performance, quality, productivity, sustainability, resource and energy efficiency, and the manageability of systems and processes for the benefit of mankind and are relevant to industrial practitioners are most welcome.