基于事件触发的Delta算子网络控制系统故障检测

doi:10.16180/j.cnki.issn1007-7820.2024.05.011

电子科技 ›› 2024, Vol. 37 ›› Issue (5): 79-87.doi: 10.16180/j.cnki.issn1007-7820.2024.05.011

基于事件触发的Delta算子网络控制系统故障检测

葛晓伟, 周颖

南京邮电大学自动化学院,江苏南京 210023

收稿日期:2022-04-06 出版日期:2024-05-15 发布日期:2024-05-21
作者简介:葛晓伟(1997-),男,硕士研究生。研究方向:网络控制系统、故障诊断、Delta算子。
周颖(1978-),女,博士,副教授。研究方向:线性系统理论、故障诊断、复杂网络、离散系统。
基金资助:
国家自然科学基金(62073172)

Event-Triggered Fault Detection for Delta Operator Network Control Systems

GE Xiaowei, ZHOU Ying

College of Automation,Nanjing University of Posts and Telecommunications,Nanjing 210023,China

Received:2022-04-06 Online:2024-05-15 Published:2024-05-21
Supported by:
National Natural Science Foundation ofChina(62073172)

摘要/Abstract

摘要：

针对网络控制系统在高速采样情况下,网络中由于通信网络带宽受限发生时延和丢包所引起的故障问题,文中采用了基于事件触发机制和Delta算子相结合的故障检测方法。在对故障检测滤波器和控制器进行协同设计的同时,在Delta算子滤波器模型中加入构造向量,避免了参数设计时双线性项的产生。构造δ域的Lyapunov-Krasovskii泛函,对残差系统的稳定性和H_∞性能进行分析。数值仿真实例验证了文中所提事件触发机制的有效性,并通过残差评价函数证明了其对故障的灵敏度较高。

关键词: 网络控制系统, 故障检测, Delta算子, 网络时延, 网络丢包, 事件触发机制, 残差系统, H_∞ 性能, 残差评价函数

Abstract:

A fault detection method based on a combination of event-triggered mechanism and Delta operator is used for the fault problems caused by time delay and packet loss in the network due to bandwidth limitation of the communication network in the case of high-speed sampling of the network control system. In this study, while co-designing the fault detection filter and the controller, the construction vector is added to the Delta operator filter model to avoid the generation of bilinear terms in the parameter design. Constructing Lyapunov-Krasovskii generalized connotations of the δ-domain for the stability and H_∞ performance of the residual system. The numerical simulation example verifies the effectiveness of the proposed event triggering mechanism and demonstrates its high sensitivity to faults by the residual evaluation function.

Key words: network control system, fault detection, Delta operator, network delay, network packet loss, event triggering mechanism, residual system, H_∞ performance, residual evaluation function

中图分类号:

TP273

葛晓伟, 周颖. 基于事件触发的Delta算子网络控制系统故障检测[J]. 电子科技, 2024, 37(5): 79-87.

GE Xiaowei, ZHOU Ying. Event-Triggered Fault Detection for Delta Operator Network Control Systems[J]. Electronic Science and Technology, 2024, 37(5): 79-87.

图/表 6

参考文献 21

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基于事件触发的Delta算子网络控制系统故障检测

Event-Triggered Fault Detection for Delta Operator Network Control Systems

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