Computing the distance between a nonlinear model and its linear approximation:: an L2 approach

被引:11
作者
Kihas, D [1 ]
Marquez, HJ [1 ]
机构
[1] Univ Alberta, Dept Elect & Comp Engn, Edmonton, AB T6G 2V4, Canada
关键词
nonlinear model; linearization; Hamilton-Jacobi inequality; input-output stability; input-to-state stability;
D O I
10.1016/j.compchemeng.2004.08.002
中图分类号
TP39 [计算机的应用];
学科分类号
081203 ; 0835 ;
摘要
In this paper we consider the following problem: viewing both a nonlinear system model and its linearization as mappings from input-to-state, we define the error between the state of the original nonlinear system and that of the linearization and find the region of the state space where this error is norm-bounded, in the integral-square (or L-2-norm) sense. Using the Hamilton-Jacobi inequality we define the distance between these two systems as the upper bound of this error. (C) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2659 / 2666
页数:8
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