H∞ State and Parameter Estimation for Lipschitz Nonlinear Systems

被引：0

作者：

Alvarado-Mendez, Pedro Eusebio ^{[1
]}

Astorga-Zaragoza, Carlos M. ^{[1
]}

Osorio-Gordillo, Gloria L. ^{[1
]}

Aguilera-Gonzalez, Adriana ^{[2
]}

Vargas-Mendez, Rodolfo ^{[1
]}

Reyes-Reyes, Juan ^{[1
]}

机构：

[1] Tecnol Nacl Mexico, CENIDET, Interior Internado Palmira S-N, Cuernavaca 62490, Morelos, Mexico

[2] Univ Bordeaux, ESTIA Inst Technol, F-64210 Bidart, France

来源：

MATHEMATICAL AND COMPUTATIONAL APPLICATIONS | 2024年 / 29卷 / 04期

关键词：

adaptive observer; nonlinear system; Lipschitz nonlinearities; ADAPTIVE-OBSERVER DESIGN; FAULT; DISTURBANCE;

D O I：

10.3390/mca29040051

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

A H-infinity robust adaptive nonlinear observer for state and parameter estimation of a class of Lipschitz nonlinear systems with disturbances is presented in this work. The objective is to estimate parameters and monitor the performance of nonlinear processes with model uncertainties. The behavior of the observer in the presence of disturbances is analyzed using Lyapunov stability theory and by considering an H-infinity performance criterion. Numerical simulations were carried out to demonstrate the applicability of this observer for a semi-active car suspension. The adaptive observer performed well in estimating the tire rigidity (as an unknown parameter) and induced disturbances representing damage to the damper. The main contribution is the proposal of an alternative methodology for simultaneous parameter and actuator disturbance estimation for a more general class of nonlinear systems.

引用

页数：15

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