【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。更多还原

【Abstract】 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.更多还原