Unknown Input Observer-Based Design for a Class of Nonlinear System with Time-Variable Delay

Journal of control, automation and electrical systems

article

Triki, Ikram¹  Massaoud, Ramzi Ben²  Bouani, Faouzi¹ 

[1] Université de Tunis El Manar, Ecole Nationale d’Ingénieurs de Tunis, LR11ES20 Laboratoire d’Analyse;Laboratoire de Nanomateriaux et des Systèmes pour les Ènergies Renouvelables, Centre de Recherches et des Technologies de l’Energie

关键词: Nonlinear observer;    Unknown input;    Nonlinear time-delay system;    Stability;    State estimation;   

DOI  :  10.1007/s40313-020-00605-9

学科分类：自动化工程

来源: Springer

【 摘 要 】

This paper addresses the problem of state estimation for nonlinear delay systems by proposing an unknown inputs observer. The observer design is based on using Taylor’s first-order development. The stability study has been proven using a modified Lyapunov–Krasovskii functional without reference to a linear matrix inequality. For the validation of the proposed approach, three examples are proposed. The first one is about comparative simulation, the second one treats the chaotic time-delay system and the final example considered the time-delay system with measurement noise.

【 授权许可】

CC BY