Adaptive feedback control for nonlinear triangular systems subject to uncertain asymmetric dead-zone input
Minghui Feng
Yanjie Chang
Zhiyu Duan
Xianfu Zhang
School of Control Science and Engineering,Shandong University,Jinan 250061,Shandong,China
摘要：In this paper,an adaptive control strategy is proposed to investigate the issue of uncertain dead-zone input for nonlinear triangular systems with unknown nonlinearities.The considered system has no precise priori knowledge about the dead-zone feature and growth rate of nonlinearity.Firstly,a dynamic gain is introduced to deal with the unknown growth rate,and the dead-zone characteristic is processed by the adaptive estimation approach without constructing the dead-zone inverse.Then,by virtue of hyperbolic functions and sign functions,a new adaptive state feedback controller is proposed to guarantee the global boundedness of all signals in the closed-loop system.Moreover,the uncertain dead-zone input problem for nonlinear upper-triangular systems is solved by the similar control strategy.Finally,two simulation examples are given to verify the effectiveness of the control scheme.
机标关键词：subjectcontrolsystemsinputadaptiveasymmetricdead-zonefeedback
论文发表日期：2023-11-05
在线出版日期：2025-08-15（本平台首次上网日期，不代表文献的发表时间）
页数：11( 530-540 )
英文信息