کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
690087 889681 2008 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A grey-box modeling approach for the reduction of nonlinear systems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
A grey-box modeling approach for the reduction of nonlinear systems
چکیده انگلیسی

A novel model reduction methodology is proposed to approximate large-scale nonlinear dynamical systems. The methodology amounts to finding computationally efficient substitute models for the nonlinear subsystems. Model reduction is pursued by viewing the system as a grey-box (or hybrid) model with a mechanistic (white-box) component and an empirical (black-box) component. Before identifying the substitute model, the mechanistic subsystem is reduced by projection using proper orthogonal decomposition. Subsequently, the empirical component is identified by parameter estimation to substitute the nonlinear subsystem. As a consequence, a reduced model with less nonlinear complexity is obtained. An example involving a distributed parameter system is provided.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Process Control - Volume 18, Issue 9, October 2008, Pages 906–914
نویسندگان
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