Robust control for a class of uncertain nonlinear systems with input quantization

被引：76
作者：
Xing, Lantao [1 ]
Wen, Changyun [2 ]
Su, Hongye [1 ]
Liu, Zhitao [1 ]
Cai, Jianping [1 ]
机构：
[1] Zhejiang Univ, Inst Cyber Syst & Control, State Key Lab Ind Control Technol, Yuquan Campus, Hangzhou 310027, Zhejiang, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Nanyang Ave, Singapore 639798, Singapore
来源：
INTERNATIONAL JOURNAL OF ROBUST AND NONLINEAR CONTROL | 2016年 / 26卷 / 08期
基金：
中国国家自然科学基金;
关键词：
uncertain nonlinear system; backstepping technique; input quantization; sector-bounded quantizers; SECTOR BOUND APPROACH; LINEAR-SYSTEMS; STABILIZATION;
D O I：
10.1002/rnc.3367
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, we propose a robust tracking control scheme for a class of uncertain strict-feedback nonlinear systems. In these systems, the control signal is quantized by a class of sector-bounded quantizers including the well-known hysteresis quantizer and logarithmic quantizer. Compared with the existing results in input-quantized control, the proposed scheme can control systems with non-global Lipschitz nonlinearities and unmatched uncertainties caused by model uncertainties and external disturbances. It is shown that the designed robust controller ensures global boundedness of all the signals in the closed-loop system and enables the tracking error to converge toward a residual, which can be made arbitrarily small. Copyright (c) 2015 John Wiley & Sons, Ltd.
引用
收藏
页码：1585 / 1596
页数：12
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