不确定系统的鲁棒故障检测方法研究

Research on Robust Fault Detection Method for Uncertainty Systems

不确定系统主要指参数不确定和未知输入扰动也不确定的线性时不变系统,结合H∞/H-性能指标最优和标准的H∞模型匹配问题的鲁棒故障检测的方案,设计了残差产生器和故障检测观测器,利用LMI求解观测器增益矩阵,并分析了实验结果。

Uncertain system means both parametric uncertainty and unknown input disturbance. An integrative scheme of robust fault detection is proposed, which combine the optimal performance index and H∞ model-matching problem. Firstly, a residual generator and a fault detection observer are given. Then, a solution of the gain matrix of fault detection observer is calculated via several LMI formulations, and the experiment result is analyzed.