Finite-time adaptive switched gain control for non-strict feedback nonlinear systems via nonlinear command filter

被引：16
|
作者：
Wei, Wei [1 ]
Zhang, Weihai [1 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Elect Engn & Automat, Qingdao 266590, Peoples R China
来源：
NONLINEAR DYNAMICS | 2020年 / 100卷 / 04期
基金：
中国国家自然科学基金;
关键词：
Backlash-like hysteresis; Switched gain technique; Nonlinear command filter; Adaptive fuzzy control; Practically finite-time stable; DYNAMIC SURFACE CONTROL; NEURAL-CONTROL; FUZZY CONTROL; OBSERVER; APPROXIMATION; STABILIZATION; HYSTERESIS;
D O I：
10.1007/s11071-020-05693-5
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This paper is aimed at developing a finite-time adaptive control for non-strict feedback nonlinear systems with unknown backlash-like hysteresis. First, the adaptive fuzzy systems are applied to identify the unknown functions which contain all the system states. Second, based on the practical finite-time stability criteria, a novel finite-time adaptive switched gain controller via nonlinear command filter is proposed. The stability analysis shows that the tracking error converges to a small region around the origin within a finite time. Meanwhile, all the resulting closed-loop system states are bounded. Finally, simulation examples verify the effectiveness of the designed control scheme.
引用
收藏
页码：3485 / 3496
页数：12
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