Distributed Fault Accommodation of Multiple Sensor Faults for a Class of Nonlinear Interconnected Systems

• 成果类型: Article
• 署名作者: Zhao, Dong; Polycarpou, Marios M.
• 署名单位: University of Cyprus; University of Cyprus
• 刊物名称: IEEE TRANSACTIONS ON AUTOMATIC CONTROL
• ISSN/ISSBN: 0018-9286
• DOI: 10.1109/TAC.2021.3073284
• 发表日期: 2022
• 页码: 2092-2099
• 关键词: Interconnected systems; fault detection; Fault diagnosis; monitoring; estimation; uncertainty; indexes; Adaptive approximation; fault accommodation; Interconnected systems; Nonlinear systems; sensor fault

摘要

This article considers the design and analysis of a distributed sensor fault accommodation scheme for a class of nonlinear systems, modeled as interconnected subsystems. Each subsystem is subject to possible local sensor faults or may be impacted by a sensor fault in a neighboring subsystem due to the exchange of information between neighboring controllers. The proposed adaptive approximation-based distributed fault accommodation scheme is triggered in the event that a sensor fault is detected. The stability of the closed-loop system in the presence of sensor faults is rigorously analyzed both for the period prior to the detection of the fault, as well as after the detection of the fault when the fault accommodation scheme is activated. The effectiveness of the proposed scheme is illustrated by a simulation example.