Robust Observers for a Class of Nonlinear Systems Using PEM Fuel Cells as a Simulated Case Study
Robust Observers for a Class of Nonlinear Systems Using PEM Fuel Cells as a Simulated Case Study
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DOI：
10.1109/tcst.2017.2658181
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发表时间：
2018
影响因子：
4.8
通讯作者：
M. Benallouch;R. Outbib;M. Boutayeb;E. Laroche
中科院分区：
文献类型：
--
作者：
M. Benallouch;R. Outbib;M. Boutayeb;E. Laroche
本文针对一类非线性系统，在系统动态和输出均存在扰动的情况下，提出了一种未知输入观测器的设计方法。本文的理论结果可以看作是文献[1]和[2]的推广，文献[1]和[2]是专门用于估计系统状态和未知输入的观测器设计的。通过正则变换，将鲁棒观测器设计问题转化为线性矩阵不等式可行性问题。本简报的主要动机之一是开发质子交换膜燃料电池堆系统的状态估计器。更确切地说，这简要解决了问题的观测器设计估计的主要变量的燃料电池系统。仿真结果突出了良好的收敛性能的观测器建议。
This brief presents an unknown input observer design method for a class of nonlinear systems in the presence of disturbances in both the system dynamics and the output. The theoretical result proposed can be considered as an extension of those established in [1] and [2], which are dedicated to observer design for estimating both the state of the system and an unknown input. By means of regular transformations, the robust observer design problem is turned into a linear matrix inequality feasibility problem. One of the main motivations of this brief is to develop a state estimator for proton exchange membrane fuel cell stack systems. More precisely, this brief addresses the problem of observer design for estimating the main variables of the fuel cell systems. Simulation results are presented to highlight the good convergence properties of the observers proposed.