Output-Feedback Proportional-Integral Fuzzy Control of Unknown Nonlinear Systems With Prescribed Performance

IF 10.7 1区计算机科学 Q1 COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE

IEEE Transactions on Fuzzy Systems Pub Date : 2025-04-02 DOI:10.1109/TFUZZ.2025.3557029

Jin-Zi Yang;Jin-Xi Zhang;Tianyou Chai

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Abstract

The problem of high-performance tracking control for the nonlinear systems with nonparametric uncertainties as well as time-varying disturbances is investigated in this article. In place of the methods of sliding-mode control, variable structure control, and robust integral of the sign of the error control, an output-feedback fuzzy prescribed performance control approach is put forward. It consists of a fuzzy state observer, a proportional-integral (PI) constraint-handling scheme, and an adaptive fuzzy backstepping PI control unit. The developed approach achieves output tracking with the predefined settling time and accuracy. Moreover, it actively restrains the oscillations of both the tracking error and the intermediate errors. On the other hand, the compact set condition for fuzzy approximation is rigorously warranted. Besides, the chattering phenomenon and the requirement for differentiable disturbances by the existing methods are excluded. A pair of comparative simulations is performed to demonstrate the efficacy and advantage of our approach.

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给定性能的未知非线性系统的输出反馈比例积分模糊控制

研究了具有非参数不确定性和时变扰动的非线性系统的高性能跟踪控制问题。提出了一种输出反馈模糊规定性能控制方法，取代了滑模控制、变结构控制和误差符号鲁棒积分控制方法。它由模糊状态观测器、比例积分（PI）约束处理方案和自适应模糊后退PI控制单元组成。所开发的方法可以在预定义的稳定时间和精度下实现输出跟踪。此外，它还能有效地抑制跟踪误差和中间误差的振荡。另一方面，模糊逼近的紧集条件得到了严格保证。此外，还排除了现有方法的抖振现象和对扰动可微的要求。通过一对对比仿真验证了该方法的有效性和优越性。

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来源期刊

IEEE Transactions on Fuzzy Systems 工程技术-工程：电子与电气

CiteScore

20.50

自引率

13.40%

发文量

517

审稿时长

3.0 months

期刊介绍： The IEEE Transactions on Fuzzy Systems is a scholarly journal that focuses on the theory, design, and application of fuzzy systems. It aims to publish high-quality technical papers that contribute significant technical knowledge and exploratory developments in the field of fuzzy systems. The journal particularly emphasizes engineering systems and scientific applications. In addition to research articles, the Transactions also includes a letters section featuring current information, comments, and rebuttals related to published papers.