时滞依赖鲁棒故障诊断滤波器设计  

Design of Delay-dependent Robust Fault Detection Filter

作　　者：白雷石[1] 田作华[1] 施颂椒[1] 

机构地区：[1]上海交通大学自动化系,上海200240

出　　处：《系统仿真学报》2006年第8期2253-2255,2259,共4页Journal of System Simulation

摘　　要：研究具有扰动不确定性的状态时滞系统时滞依赖鲁棒故障诊断滤波器的设计问题。通过对系统传递函数输入输出通道的组合变换,引入一种新的能够同时体现残差对扰动信号鲁棒性和对故障信号灵敏性的性能指标。将基于状态观测器的鲁棒故障诊断滤波器设计问题转化为H∞优化设计问题,应用线性矩阵不等式技术,给出并证明了该设计问题时滞依赖解存在的条件和求解方法。最后,通过一个仿真算例来验证本方法的有效性。The delay-dependent robust fault detection filter design problem for state-delay systems with disturbance was studied, By combining the appropriate input/output channels, a new performance index was introduced, which took into account the robustness of the fault detection observer against disturbance and sensitivity to faults simultaneously. The observer-based robust fault detection filter problem was formulated as an H∞ optimization problem. Using linear matrix inequality （LMI） techniques, the delay-dependent condition of this optimization problem and the further solutions were derived. Finally, the validity of this approach was illustrated by a numerical example.

关 键 词：时滞依赖 故障诊断滤波器 性能指标 H∞优化 线性矩阵不等式(LMI) 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]