Adaptive fault compensation for global performance tracking control of sensor faulty MIMO nonlinear systems with unmeasured states

作     者：Zhang, Liuliu Zhu, Lingchen Qian, Cheng Hua, Changchun 

作者机构：Yanshan Univ Inst Elect Engn Qinhuangdao 066004 Peoples R China 

出 版 物：《INFORMATION SCIENCES》 (Inf Sci)

年 卷 期：2025年第700卷

核心收录：

学科分类：12[管理学] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 08[工学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：National Natural Science Foundation of China [62273297, 62103353] Innovative Research Groups of the Natural Science Foundation of Hebei Province [E2020203174] Youth Top Talent Project of Hebei Province [HY2024050021] Provincial Key Laboratory Performance Subsidy Project [22567619H] 

主　　题：Global prescribed performance Output-feedback Sensor faults Fault detection scheme Adaptive fault compensation 

摘      要：In this article, the problem of global prescribed performance tracking control for multi-input multi- output (MIMO) nonlinear systems with sensor faults and unmeasured states is investigated. By constructing a state observer that incorporates an adaptive sensor fault compensation mechanism, the impact of the loss of sensor effectiveness is alleviated through the cubic absolute-value Lyapunov function analysis method. Based on several transformation functions and a time-varying scaling function, the tracking errors are restricted within the global prescribed performance without the constrained initial conditions. Considering the abrupt change in tracking errors due to the existence of sensor faults, a monitoring function to supervise the excessive loss of sensor effectiveness is designed. Furthermore, a novel reconfigurable controller can be constructed with the detected fault time instant and the global prescribed performance. The analysis demonstrates that all signals remain bounded and the tracking errors are maintained within the designed global prescribed performance regardless of sensor faults. Finally, the efficacy of the presented control scheme is demonstrated by the simulation results.