基于传感器最优配置的故障检测观测器设计

A Design of Fault Detection Observer Based on Optimal Sensor Location

提出一种基于传感器最优配置的故障检测观测器设计方法.针对线性时不变动态系统,给出了故障检测观测器设计问题以及基于传感器最优配置的故障检测观测器设计问题的描述.通过最优地选择测量变量,使满足系统测量成本最低的情况下,达到对故障具有尽可能大的灵敏度,而同时对未知输入信号的影响具有尽可能强的鲁棒性目标.仿真算例说明了设计方法及算法的有效性.

A design of fault detection observer based on optimal sensor location is proposed. The problems in designing fault detection observer and its optimal design problems based on an optimal sensor location are formulated for the linear time invafiant system. Measurements are selected optimally, a minimum total measurement cost can be achieved when the system is designed to be as sensitive as possible to faults and simultaneously as robust as possible to the unknown inputs such as disturbance. The simulation results illustrate the effectiveness of the proposed approach.