Hysteresis observer enhanced integral terminal sliding mode control of piezoelectric platform for precision tracking applications

IF 6.5 2区计算机科学 Q1 AUTOMATION & CONTROL SYSTEMS

ISA transactions Pub Date : 2025-06-18 DOI:10.1016/j.isatra.2025.06.022

Jie Chen , Lei Ni , Xuan Liao , Geng Wang , Lanqiang Zhang , Na Yao , Yijun Li , Sumeet S. Aphale

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引用次数: 0

Abstract

The nonlinearity of piezo-actuated positioning platforms significantly impacts their performance in high-precision applications. In this work a dynamic model of piezoelectric platform was developed firstly with the asymmetric Bouc-Wen model. Next, a terminal sliding mode observer with the super-twisting mechanism was designed to accurately estimate the state of the system. Then, a novel control strategy named Hysteresis Observer Enhanced Integral Terminal Sliding Mode Controller (HO-ITSMC) was proposed to achieve precise displacement tracking. Its stability is theoretically proved by the Lyapunov theorem. A key feature of this controller lies in its ability to drive the state of the system into zero in finite time, regardless of the initial state. Extensive experiments have thoroughly validated the effectiveness of the proposed control method, demonstrating its superior precision-tracking performance compared to traditional controllers.

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基于滞回观测器的压电平台积分末端滑模控制在精密跟踪中的应用。

压电驱动定位平台的非线性特性严重影响其在高精度应用中的性能。本文首先采用非对称Bouc-Wen模型建立了压电平台的动力学模型。其次，设计了带超扭转机构的末端滑模观测器，实现了系统状态的精确估计。然后，提出了一种新的控制策略——迟滞观测器增强积分终端滑模控制器（HO-ITSMC），以实现精确的位移跟踪。用李亚普诺夫定理从理论上证明了它的稳定性。该控制器的一个关键特征在于它能够在有限时间内将系统状态驱动为零，而不管初始状态如何。大量的实验充分验证了所提出控制方法的有效性，与传统控制器相比，其精度跟踪性能优越。

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

ISA transactions 工程技术-工程：综合

CiteScore

11.70

自引率

12.30%

发文量

824

审稿时长

4.4 months

期刊介绍： ISA Transactions serves as a platform for showcasing advancements in measurement and automation, catering to both industrial practitioners and applied researchers. It covers a wide array of topics within measurement, including sensors, signal processing, data analysis, and fault detection, supported by techniques such as artificial intelligence and communication systems. Automation topics encompass control strategies, modelling, system reliability, and maintenance, alongside optimization and human-machine interaction. The journal targets research and development professionals in control systems, process instrumentation, and automation from academia and industry.