NDLI: Model approximation of multiple delay transfer function models using multiple-point step response fitting

Content Provider	Springer Nature Link
Author	Zhou, Ping Xiang, Bo Fu, Jun Chai, Tian You
Copyright Year	2012
Abstract	Compared with model approximation for general SISO transfer function models with or without a single constant delay, the approximation problem for SISO transfer function models with multiple delays has received much less attention. In this paper, we attack this problem and thus present a multiple-point step response fitting based approximation method to derive the reduced models. A simple frequency-domain weighted recursive least squares (RLS) algorithm is proposed to determine a set of parameters so that the reduced models can approximate the original models by minimizing the defined frequency-domain squared-error between the step responses of the original and the reduced model. Numerical examples have demonstrated that the proposed approximation approach can not only introduce less dynamic approximation error, but also yield zero steady-state error.
Starting Page	180
Ending Page	185
Page Count	6
File Format	PDF
ISSN	15986446
Journal	International Journal of Control, Automation and Systems
Volume Number	10
Issue Number	1
e-ISSN	20054092
Language	English
Publisher	Institute of Control, Robotics and Systems and The Korean Institute of Electrical Engineers
Publisher Date	2012-02-04
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Frequency-domain model approximation multiple delay transfer function models (MDTFM) multiple-point step response fitting weighted recursive least squares (RLS) Control, Robotics, Mechatronics
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Computer Science Applications

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