Robust Fault Detection and Isolation Based on Finite-frequency H_/H∞ Unknown Input Observers and Zonotopic Threshold Analysis

Meng Zhou; Zhengcai Cao; Ye Wang

首页> 外文期刊>自动化学报（英文版） >Robust Fault Detection and Isolation Based on Finite-frequency H_/H∞ Unknown Input Observers and Zonotopic Threshold Analysis

【24h】

Robust Fault Detection and Isolation Based on Finite-frequency H_/H∞ Unknown Input Observers and Zonotopic Threshold Analysis

机译：基于有限频率H_ /H∞未知输入观测器和地带阈值分析的鲁棒故障检测与隔离

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

This work proposes a robust fault detection and isolation scheme for discrete-time systems subject to actuator faults,in which a bank ofH_/H∞ fault detection unknown input observers (UIOs) and a zonotopic threshold analysis strategy are considered.In observer design,finite-frequency H_ index based on the generalized Kalman-Yakubovich-Popov lemma and H∞ technique are utilized to evaluate worst-case fault sensitivity and disturbance attenuation performance,respectively.The proposed H_/H∞ fault detection observers are designed to be insensitive to the corresponding actuator fault only,but sensitive to others.Then,to overcome the weakness of predefining threshold for FDI decision-making,this work proposes a zonotopic threshold analysis method to evaluate the generated residuals.The FDI decision-making relies on the evaluation with a dynamical zonotopic threshold.Finally,numerical simulations are provided to show the feasibility of the proposed scheme.

机译：这项工作提出了一种针对执行器故障的离散时间系统的鲁棒故障检测和隔离方案，其中考虑了一组H_ /H∞故障检测未知输入观测器（UIO）和区域局部阈值分析策略。在观测器设计中，有限基于广义Kalman-Yakubovich-Popov引理和H∞技术的高频H_指数分别用于评估最坏情况下的故障敏感性和扰动衰减性能。然后，为克服FDI决策中预先确定阈值的缺点，本文提出了一种区域局部阈值分析方法，对产生的残差进行评估。最后，通过数值模拟验证了所提方案的可行性。

著录项

来源
《自动化学报（英文版）》 |2019年第3期|750-759|共10页
作者
Meng Zhou; Zhengcai Cao; Ye Wang;
展开▼
作者单位

College of Information Science & Technology, Beijing University of Chemical Technology, Beijing 100029,China;

College of Information Science & Technology, Beijing University of Chemical Technology, Beijing 100029,China;

College of Automation, Harbin Engineering University,Harbin 150001, China;

展开▼
收录信息中国科学引文数据库(CSCD);
原文格式 PDF
正文语种 eng
中图分类
关键词

Robust Fault Detection and Isolation Based on Finite-frequency H_/H∞ Unknown Input Observers and Zonotopic Threshold Analysis

摘要

著录项

相关主题

期刊订阅