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Assessment of Nonlinear Predictive Control Techniques for dc-dc Converters

Author(s):

Mircea Lazar, W.P.M.H. Heemels, G. Papafotiou, M. Morari
Conference/Journal:

IFAC Nonlinear Control Design Symposium, Pretoria, South Africa
Abstract:

This article focuses on the application of two nonlinear predictive control strategies to fixed frequency switch-mode dc-dc converters. The first approach uses an averaged nonlinear model for predictions and provides an a priori robust stability guarantee for the resulting closed-loop system. The implementation of this scheme requires solving a single linear program on-line. The second approach employs a piecewise affine (PWA) approximation of the converter equations as prediction model and yields an explicit controller off-line, which allows for an a posteriori stability check. An assessment of the synthesis procedures and methodological characteristics is given and simulation results are shown to substantiate the effectiveness of the proposed approaches.

Year:

2007
Type of Publication:

(01)Article
Supervisor:



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% Autogenerated BibTeX entry
@InProceedings { LazEtal:2007:IFA_2923,
    author={Mircea Lazar and W.P.M.H. Heemels and G. Papafotiou and M. Morari},
    title={{Assessment of Nonlinear Predictive Control Techniques for
	  dc-dc Converters}},
    booktitle={IFAC Nonlinear Control Design Symposium},
    pages={},
    year={2007},
    address={Pretoria, South Africa},
    month=aug,
    url={http://control.ee.ethz.ch/index.cgi?page=publications;action=details;id=2923}
}
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