变时延网络控制系统的鲁棒故障检测

张颖昕; 王青; 吴振东; 董朝阳

变时延网络控制系统的鲁棒故障检测

1.
北京航空航天大学飞行器控制一体化技术重点实验室, 北京 100191
2. 北京航空航天大学航空科学与工程学院, 北京 100191

基金项目: 国家自然科学基金资助项目（60974014，61074207）

详细信息

中图分类号: TP273
计量
- 文章访问数: 1249
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- 被引次数: 0
出版历程
- 收稿日期: 2012-12-18
- 网络出版日期: 2013-11-30

Robust fault detection for network-based system with time-varying delay

1.
Science and Technology on Aircraft Control Laboratory, Beijing University of Aeronautics and Astronautics, Beijing 100191, China
2. School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

摘要

摘要: 针对具有时变时延的网络控制系统故障检测问题，提出了一种基于鲁棒H_∞思想的故障检测滤波器设计方法.将鲁棒H_∞故障检测问题归结为寻找滤波器参数矩阵，使得滤波系统内稳定并且满足鲁棒H_∞性能指标.根据残差评价函数和故障阈值判断系统是否存在故障.假设时变时延的上下界已知.基于时延相关Lyapunov-Krasovskii泛函方法给出了系统内稳定并且具有H_∞指标的时延相关条件.在外部控制输入、外界干扰和故障信号有界的情况下，所设计的故障检测滤波器能够保证生成的残差信号有界.针对HiMAT（Highly Maneuverable Technology）飞行器设计了故障检测滤波器，并通过仿真分析验证了所提出方法的有效性.
- 网络控制 /
- 故障检测 /
- 时变时延 /
- 滤波器
Abstract: For network-based system with time-varying delay, the fault detection filter design approach based on robust H_∞ theory was proposed. The robust H_∞ fault detection problem was converted into design parameter matrices of the filter which guarantees the internal stability and the robust H_∞ performance index. Faults were detected based on the residual error evaluation function and the fault threshold. It was assumed that the time-varying delay was bounded and the upper and lower bounds were known. The delay-dependent Lyapunov-Krasovskii functional was chosen to derive the delay-dependent condition for the existence of the fault detection filter. The parameters of the corresponding fault detection filter were obtained by solving the delay-dependent condition. Under bounded control inputs, external disturbances and fault signals, the fault detection filter can guarantee the boundedeness of the resultant residual error. The effectiveness of the proposed approach was demonstrated by the application to the highly maneuverable technology (HiMAT) vehicle flight control system.
- network-based system /
- fault detection /
- time-varying delay /
- filter

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参考文献(11)

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