摘要
针对状态含有时滞的故障系统,给出一种故障诊断设计方法。通过对系统设计未知输入观测器,利用观测的状态得到残差方程,从而诊断出时滞系统的故障,并能对传感器故障和执行器故障进行分离,最后给出故障诊断系统阈值的选取原则。
Fault detection problem for linear systems with state delay is investigated. Residual signal is obtained by using an unknown input observer, sensor and actuator's fault can be detected and isolated. The rules for the choice of threshold in the design procedure are also given.
出处
《化工自动化及仪表》
EI
CAS
北大核心
2004年第5期7-9,共3页
Control and Instruments in Chemical Industry
基金
国家自然科学基金资助项目(60274058)
关键词
故障诊断
观测器
残差信号
时滞
fault diagnosis
observer
residual signal
time-delay
