On the Synthesis of an Integrated Active FTC Scheme for Continuous-Time Switched Systems with Actuator Faults

M. Elouni, H. Hamdi, B. Rabaoui, N. Braiek, M. Rodrigues
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引用次数: 0

Abstract

The present paper aims to design an integrated state/fault estimation and fault tolerant control issues for switched systems affected by actuator fault and external disturbances. A switched adaptive state/fault estimation observer is proposed to simultaneously estimate the system state and actuator fault. Based on this observer, we develop a fault tolerant control law not only to stabilize the closed-loop system, but also to compensate the faults effects. Then, by using the switched Lyapunov function and Average Dwell Time (ADT) concept, some sufficient conditions are derived and applied to build the switched adaptive observer-based state feedback controller. The observer and controller gain matrices are also obtained by solving an optimization problem with Linear Matrix Inequality (LMI) constraints. Finally, simulation results of a switched electrical system are presented to illustrate the effectiveness of the proposed design methods.
具有执行器故障的连续时间切换系统的综合有源FTC方案
本文旨在为受执行器故障和外部干扰影响的切换系统设计一个集成的状态/故障估计和容错控制问题。提出了一种切换自适应状态/故障估计观测器,用于同时估计系统状态和执行器故障。在此观测器的基础上,提出了一种容错控制律,既能稳定闭环系统,又能补偿故障的影响。然后,利用切换Lyapunov函数和平均停留时间(ADT)的概念,导出了一些充分条件,并应用于构建基于观测器的切换自适应状态反馈控制器。通过求解线性矩阵不等式(LMI)约束的优化问题,得到观测器和控制器的增益矩阵。最后,给出了一个开关电气系统的仿真结果,验证了所提设计方法的有效性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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