基于未知输入集员滤波器的不确定系统故障诊断  

Fault Diagnosis for Uncertain Systems Based on Unknown Input Set-membership Filters

作　　者：汤文涛 王振华[1] 王烨 沈毅[1] TANG Wen-Tao;WANG Zhen-Hua;WANG Ye;SHEN Yi(School of Astronautics,Harbin Institute of Technology,Harbin 150001,China;Institutde Roboticai Informatica Industrial（IRI）,CSIC-UPC,Universitat Politecnica de Catalunya,Barcelona C/.Llorensi Artigas 4-6,08028,Spain)

机构地区：[1]哈尔滨工业大学航天学院,中国哈尔滨150001 [2]西班牙加泰罗尼亚理工大学机器人与工业信息研究所巴塞罗那C/.Llorensi Artigas 4-6,西班牙08028

出　　处：《自动化学报》2018年第9期1717-1724,共8页Acta Automatica Sinica

基　　金：国家自然科学基金(61403104,61273162); 机器人学国家重点实验室开放课题(2014-O04); 中央高校基本科研业务费专项资金(HIT.KLOF.2015.076)资助

摘　　要：针对一类具有参数不确定性和未知扰动的线性系统,提出了一种新的执行器故障诊断方法.将指定执行器故障视为未知输入,利用全对称多胞形近似状态边界,本文设计了一种未知输入全对称多胞形集员滤波器,以估计测量输出的上下边界.在此基础上,提出了一种利用一组未知输入滤波器的故障检测与分离策略.通过一个飞行控制系统的数值仿真验证了所提出方法的有效性.This paper proposes a novel actuator fault diagnosis method for linear systems subject to parametric uncertainties and unknown disturbances. By considering the specified actuator faults as unknown inputs and approximating the boundaries of state by zonotopes, an unknown input zonotopic setmembership filter is designed to obtain the upper and lower boundaries of the output. Based on the proposed design, a fault detection and isolation strategy using a bank of unknown input set-membership filters is presented. Numerical simulation of a flight control system is given to illustrate the effectiveness of the proposed approach.

关 键 词：故障诊断 集员估计 参数不确定系统 未知输入滤波器 全对称多胞形 

分 类 号：TN713[电子电信—电路与系统]