扰动非线性系统的FDI:基于SOS技术的非线性UIO方法

2010 IEEE Conference on Cybernetics and Intelligent Systems Pub Date : 2010-06-28 DOI:10.1109/ICCIS.2010.5518549

Jun Xu, K. Lum, Lihua Xie, A. Loh

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引用次数: 0

摘要

针对一类具有扰动的非线性仿射系统的故障检测与隔离问题，提出了一种新的未知输入观测器设计方法。以李氏几何和平方和理论为主要工具，提出了一种简单系统的设计方法。与传统的UIO设计相比，秩约束大大放宽。同时，我们证明了使用SOS公式可以很容易地从L2增益结果中获得阈值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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FDI of disturbed nonlinear systems: A nonlinear UIO approach with SOS techniques

This paper presents a novel unknown input observer (UIO) design method for fault detection and isolation (FDI) of a class of nonlinear affine systems with disturbance. By using Lie geometry and sum-of-squares (SOS) theory as the main tools, a simple and systematic design procedure is proposed. Compared with the traditional UIO design, the rank constraint is much relaxed. Meanwhile, we show that the threshold can be easily obtained from a L2 gain result using a SOS formulation.

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2010 IEEE Conference on Cybernetics and Intelligent Systems

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