基于观测器的飞机环控系统控制组件故障检测

控制组件作为飞机环境控制系统的重要组成部分,对其进行故障诊断具有重要意义。本文以环控系统的传感增益漂移和活门卡死故障为例,在Simulink仿真环境下建立其正常和故障模型,采用基于状态观测器的方法进行故障检测。仿真实验结果证明了该方法的有效性,且当上述两类故障发生时,基于观测器和仿真模型输出之间的残差特征分析,可以判别出所发生的故障类型。

Fault Detection of Control Component in Aircraft Environmental Control System Based on Observer

Control component is an important part of aircraft environmental control system (ECS),and it is very significant to diagnose its faults.Aiming at sensor gain drift and valve block of ECS,the normal and fault state models under Simulink simulation platform are established,and the faults are detected based on state observer.Simulation results show that the corresponding fault can be identified based on the residual error characteristic between state observer and simulation model output when the above faults o...