带有丢包和时变延迟的事件触发故障滤波检测

doi:10.16180/j.cnki.issn1007-7820.2021.07.002

电子科技 ›› 2021, Vol. 34 ›› Issue (7): 7-12.doi: 10.16180/j.cnki.issn1007-7820.2021.07.002

带有丢包和时变延迟的事件触发故障滤波检测

黄玥程,童东兵

上海工程技术大学电子电气工程学院,上海 201620

收稿日期:2020-03-09 出版日期:2021-07-15 发布日期:2021-07-05
作者简介:黄玥程(1994-),男,硕士研究生。研究方向:复杂网络、模型降阶、嵌入式系统。|童东兵(1979-),男,博士,副教授。研究方向:嵌入式系统、复杂网络、模型降阶。
基金资助:
国家自然科学基金(61673257);国家自然科学基金(11501367);中国博士后科学基金面上项目(2019M661322)

Event-Based Fault Detection Filter with Packet Loss and Time-Varying Delay

HUANG Yuecheng,TONG Dongbing

School of Electronic and Electrical Engineering,Shanghai University of Engineering Science,Shanghai 201620,China

Received:2020-03-09 Online:2021-07-15 Published:2021-07-05
Supported by:
National Natural Science Foundation of China(61673257);National Natural Science Foundation of China(11501367);General Program of China Postdoctoral Science Foundation(2019M661322)

摘要/Abstract

摘要：

针对连续时间网络控制系统的事件触发故障检测滤波器和控制器协调设计问题,文中通过综合考虑网络控制系统中的网络诱导延迟和丢包,建立了包含事件触发机制和故障滤波检测器的输出反馈闭环模型。为了降低系统的保守性,运用了Jensen’s不等式的方法。与现有基于Wirtinger的积分不等式方法相比,该方法保守性低,因此设计的故障滤波检测和控制器可以保证残差信号对故障的敏感性。数值仿真结果验证了所提出的事件触发机制的有效性,并通过残差评价函数曲线证明故障检测滤波器可以快速检测系统故障。

关键词: 网络控制系统, 事件触发机制, 故障检测滤波器, 网络诱导延迟, 丢包, 输出反馈, 残差信号, 残差评价函数

Abstract:

In view of at the problem of coordinated design of event-triggered fault detection filters and controllers in continuous-time network control systems, by considering the network induced delay and the packet loss in networked control systems, an output feedback closed-loop model including the event-triggered mechanism and fault detection filter is established. In order to reduce the conservativeness of the system, Jensen's inequality is used. Compared with Wirtinger inequality, Jensen's inequality is not conservative. Thus, the sensitivity of residual signals for faults can be ensured by the designed fault detection filter and the controller. The effectiveness of the proposed event-triggered mechanism is verified by the simulation, and the residual evaluation function curve proves that system faults can be detected quickly by the fault detection filter.

Key words: networked control systems, event-triggered mechanism, fault detection filter, network induced delay, packet loss, output feedback, residual signals, residual evaluation function

中图分类号:

TP391

黄玥程,童东兵. 带有丢包和时变延迟的事件触发故障滤波检测[J]. 电子科技, 2021, 34(7): 7-12.

HUANG Yuecheng,TONG Dongbing. Event-Based Fault Detection Filter with Packet Loss and Time-Varying Delay[J]. Electronic Science and Technology, 2021, 34(7): 7-12.

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带有丢包和时变延迟的事件触发故障滤波检测

Event-Based Fault Detection Filter with Packet Loss and Time-Varying Delay

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