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Hybrid modeling and control of switching DC-DC converters via MLD systems
KTH, School of Electrical Engineering (EES), Electric Power Systems.
2011 (English)In: IEEE Int. Conf. Autom. Sci. Eng., 2011, 714-719 p.Conference paper, Published paper (Refereed)
Abstract [en]

Modeling and control of DC-DC converters is a non trivial problem in power electronics. Such converters exhibit both autonomous and non-autonomous switching phenomena which are commonly modeled by general classes of hybrid systems. This paper addresses the modeling and control of a DC-DC buck converter via Mixed Logical Dynamical (MLD) systems and hybrid predictive control based on Mixed Integer Quadratic Programming. The main contribution of the paper is the novel concept of Forward MLD as opposed to the classical modeling approach that we call Backward MLD. The advantage of the proposed method is to introduce a prediction of the continuous behavior at a the switching instant. This results in a more accurate model and allowing to reduce by one step the prediction horizon necessary to compute the optimal control. The proposed technique reduces the complexity of the resulting MIQP program. The transient and steady state performances of the closed-loop control system over a wide range of operating points show satisfactory operation of the proposed modeling and control scheme.

Place, publisher, year, edition, pages
2011. 714-719 p.
Series
IEEE International Conference on Automation Science and Engineering, ISSN 2161-8070
Keyword [en]
Classical modeling, DC-DC buck converter, General class, Hybrid modeling, Mixed integer quadratic programming, Mixed logical dynamical systems, Modeling and control, Non trivial problems, Nonautonomous, Novel concept, One step, Operating points, Optimal controls, Prediction horizon, Predictive control, Steady state performance, Switching instants, Switching phenomenon, DC power transmission, Hybrid systems, Integer programming, Power electronics, DC-DC converters
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-150658DOI: 10.1109/CASE.2011.6042522Scopus ID: 2-s2.0-82455171722ISBN: 9781457717307 (print)OAI: oai:DiVA.org:kth-150658DiVA: diva2:746263
Conference
2011 7th IEEE International Conference on Automation Science and Engineering, CASE 2011, 24-27 August 2011, Trieste, Italy
Note

QC 20140912

Available from: 2014-09-12 Created: 2014-09-08 Last updated: 2014-09-12Bibliographically approved

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CiteExportLink to record
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  • apa
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Output format
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