事件触发通信机制下的有限频故障检测

Fault Detection in the Finite Frequency Domain with an Event-triggered Communication Scheme

研究事件触发通信机制下的网络化有限频故障检测问题.在事件触发通信机制下,网络化有限频故障检测系统被建模为一个双模切换线性系统.依据有限频不等式的时域解释,定义有限频输入.结合Finlser引理和有限频输入的特性,给出高频扰动和低频故障输入下的故障观测器与传输机制的联合设计算法.最后,通过数值算例说明本文所提出方法的有效性.

This paper investigates networked fault detection in a finite frequency domain with an event-triggered communication scheme.Under the event-triggered communication scheme,the networked fault detection system is modelled as a two-mode switched linear system.The finite frequency input is defined on the basis of the timedomain interpretation of finite frequency inequality.By applying Finsler＇s lemma and the property of finite frequency input assembly,this co-design approach is proposed for fault observation and communication under highfrequency disturbance and low-frequency fault input.Finally,a numerical example is given to illustrate the effectiveness of the presented approach.