Title
Structured model reduction for dynamical networked systems
Abstract
Mathematical models of networked systems usually take the form of large-scale, nonlinear differential equations. Model reduction is a commonly used technique for understanding and analyzing systems of this size, by producing simplified yet accurate descriptions for them. Most available reduction methods work well for linear system descriptions or small-scale nonlinear system descriptions but they usually involve a state transformation to `balance' the system before truncation. However, linear or nonlinear state combinations destroy the system structure that is important for drawing conclusions about the original networked system from the reduction. In this paper we propose an algorithmic methodology for model order reduction of nonlinear systems, without inducing state transformations. A priority list of states to be collapsed according to the estimated worst-case 2-norm of the error between the outputs of the original and reduced systems is produced. The main advantage of the method is that the states of the reduced system are a subset of the states of the original system.
Year
DOI
Venue
2010
10.1109/CDC.2010.5718017
Decision and Control
Keywords
Field
DocType
nonlinear control systems,nonlinear differential equations,reduced order systems,time-varying systems,dynamical networked systems,linear system descriptions,nonlinear differential equations,small-scale nonlinear system,structured model reduction
Truncation,Mathematical optimization,Nonlinear system,Polynomial,Linear system,Computer science,Model order reduction,Control theory,Nonlinear differential equations,Steady state,Mathematical model
Conference
ISSN
ISBN
Citations 
0743-1546
978-1-4244-7745-6
1
PageRank 
References 
Authors
0.37
12
4
Name
Order
Citations
PageRank
Antonis Papachristodoulou199090.01
Yo-Cheng Chang2231.63
Elias August3648.16
James Anderson4428.02