控制理论(社会学)
饱和(图论)
多输入多输出
执行机构
非线性系统
控制系统
计算机科学
趋同(经济学)
控制(管理)
工程类
数学
频道(广播)
人工智能
电信
组合数学
电气工程
物理
经济
量子力学
经济增长
作者
Ruihang Ji,Dongyu Li,Jan Ma,Shuzhi Sam Ge
出处
期刊:IEEE Transactions on Fuzzy Systems
[Institute of Electrical and Electronics Engineers]
日期:2022-12-01
卷期号:30 (12): 5116-5127
被引量:17
标识
DOI:10.1109/tfuzz.2022.3166244
摘要
In this article, we investigate the saturation-tolerant prescribed control (SPC) for multiinput and multioutput nonlinear systems with unknown control directions and actuator faults. We propose a concise tunnel prescribed performance (TPP) with the control design independent of initial conditions and smaller overshoots achieved due to its tight feasible region. A novel auxiliary system, to tactfully establish a feedback mechanism between input saturation and prescribed performance, is constructed. By introducing the generated nonnegative modifications into the TPP, the resulted saturation-tolerant prescribed performance (SPP) is capable of flexibly degrading performance constraints in the case of saturation; and recovering back to the user-specified performance in the case without saturation. Furthermore, the proposed control scheme guarantees not only finite-time convergence, but also SPP-constrained tracking performance despite the input saturation and uncertainties. Finally, comparative results are provided to demonstrate the distinctive merit of the proposed SPC more than the traditional prescribed performance control.
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