Command-Filter-Based Finite-Time Adaptive Control for Nonlinear Systems With Quantized Input

• 成果类型: Article
• 署名作者: Ma, Jiali; Park, Ju H.; Xu, Shengyuan
• 署名单位: Nanjing University of Science & Technology; Yeungnam University
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2020.3006283
• 发表日期: 2021
• 页码: 2339-2344
• 关键词: Nonlinear systems; asymptotic stability; Backstepping; Adaptive systems; stability analysis; Error compensation; Lyapunov methods; Command filter; finite-time control; Nonlinear systems; quantized input

摘要

This article considers the finite-time adaptive control problem of nonlinear systems with quantized input signal. Compared with existing results, the quantized parameters are unknown and the bound of the disturbance is not required. By utilizing the command filter backstepping method, an adaptive switching-type controller is designed and a novel switching mechanism is also proposed. By regulating the controller parameters online, practical finite-time stability can be guaranteed for the closed-loop system. Finally, a simulation example is given to illustrate the effectiveness of the proposed method.