摘要
本文讨论故障系统的状态估计问题.文中给出了在故障检测滤波器误差方程基础上,利用未知输入观测器或逆系统算法,根据输出误差估计状态误差,从而得到故障系统状态的估计方法.文中还给出了一个数字仿真例子.
This paper is devoted to the state estimation for faulty systems.An estimation method is proposed.Itapplies the unknown input observer and inverse system method to the error equations of the failure detec-tion filter to estimate the state variable errors with the output residua being known;therefore,the states ofthe faulty system are obtained.A simulation example is given to illustrate the method proposed.
出处
《信息与控制》
CSCD
北大核心
1991年第2期19-25,共7页
Information and Control
关键词
控制系统
故障检测
状态估计
fault detection
failure detection filter
state estimation
unknown input observer
inverse system
