不确定系统鲁棒解析余度的最优设计

本文给出了鲁棒故障检测的性能指标，采用广义特征结构理论求解性能指标，可得出用于系统故障检测的最优和次最优鲁棒解析余度。文中针对喷气发动机在不同工作点运行的一组模型，采用本文方法对系统的故障进行了检测，仿真结果表明，对所有的工作点模型均能得到满意的检测效果。

Optimal Design of Robust Analytical Redundancy for Uncertain Systems

performance index for the robust fault detection is given in this paper. By using the theory of Generalized Eigenstructure the index can be solved to obtain optimal and sub-optimal robust redundancy relations for system fault detection. For a jet engine system with a set of model variants corresponding to different operation POints, robust redundancy relations are designed to detect system faults using the method in this paper. Simulation results show that satisfactory fault detection has been achieved for all model variants.