基于观测器的线性系统鲁棒故障检测器设计

Robust fault detector design for linear systems based on observer

系统地研究了线性系统鲁棒故障检测器的原理和设计方法 ,确定了使线性系统鲁棒故障检测器能够降维所必需的故障检测器的数目 ,并依此提出了一种基于观测器的鲁棒故障检测器的设计方法 ,并将此结果应用于双闭环直流调速系统的故障诊断 ,表明了该方法是行之有效的 .图 2 ,参

The principle and design method of robust fault detector of linear system are studied systematically in this paper.The necessary number of the fault detector which can decrease the dimension of robust fault detector is confirmed.A design project of the robust fault detector based on observer of linear system is put forward.The obtained results are used to fault diagnose of double loops DC speed regulating system.The experimental results show that our method is valid.2figs.,6refs.