A Novel Asynchronous Sliding Mode Design for Switched Systems under Input-Output Finite-Time Stability

被引:1
作者
Zhao, Haijuan [1 ]
Ma, Juan [1 ]
Xu, Qinqi [1 ]
机构
[1] Qingdao Univ Technol, Sch Informat & Control Engn, Qingdao 266520, Peoples R China
关键词
switched systems; input-output finite-time stability; asynchronous switching; sliding mode control; LINEAR-SYSTEMS; STABILIZATION;
D O I
10.3390/electronics12214519
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 work, the input-output finite-time stability (IO-FTS) of a class of continuous-time switched systems characterized by uncertainties and subjected to external disturbances is studied under asynchronous switching by means of the sliding mode control (SMC) method. The IO-FTS poses a finite-time constraint problem, which involves addressing two main issues: firstly, ensuring that the state trajectory of the switched system reaches the given sliding mode surface within the specified time, and secondly, achieving IO-FTS for the closed-loop switched system during asynchronous switching. To address these issues, we apply a partitioning strategy and construct asynchronous sliding mode controllers with adjustable parameters to ensure the reachability of the system's state trajectory within a finite time. Subsequently, we employ a multiple Lyapunov function (MLF) approach to provide sufficient conditions that ensure IO-FTS during the whole phase [0,T] for the resulting switched system. Additionally, we analyze the asynchronous characteristics concerning the reachability phase of the designed sliding surface, considering the system's switching properties. Finally, we demonstrate the efficacy of the proposed approach with a numerical example.
引用
收藏
页数:22
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