Simultaneous interval estimation of actuator fault and state for a class of nonlinear systems by zonotope analysis

被引：0
作者：
Xu, Chi [1 ]
Wang, Zhenhua [1 ]
Puig, Vicenc [2 ]
Shen, Yi [1 ]
机构：
[1] Harbin Inst Technol, Dept Control Sci & Engn, Harbin 150001, Peoples R China
[2] Univ Politecn Catalunya BarcelonaTech UPC, Adv Control Syst SAC Res Grp, Automat Control Dept ESAII, Inst Robot & Informat Ind IRI,CSIC,UPC, Barcelona, Spain
来源：
JOURNAL OF PROCESS CONTROL | 2024年 / 142卷
基金：
中国国家自然科学基金;
关键词：
Interval estimation; Fault estimation; Nonlinear systems; Zonotope analysis; Observer design; KALMAN FILTER; OBSERVERS;
D O I：
10.1016/j.jprocont.2024.103303
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In this paper, an actuator fault and state interval estimation method for a class of nonlinear systems is proposed by integrating observer design and zonotope analysis. For the considered systems, we present a novel unknown input observer structure with broad applications. The design procedure is based on H infinity infinity method to decrease the influence of unknown but bounded process disturbances and measurement noise. Moreover, a novel interval estimation method is presented based on zonotope analysis to obtain tighter intervals. Numerical simulations of a quadruple-tank system are conducted to assess the performance of the proposed approach.
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页数：11
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