Set-Point Control of a Spatially Distributed Buck Converter

The classical buck converter is a very common DC–DC converter, which reduces an higher input supply voltage to a lower output load voltage. Replacing the inductor and the capacitor by a transmission line, we obtain a distributed buck converter, which can be described by partial differential equation...

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Main Authors: Klaus Röbenack, Stefan Palis
Format: Article
Language:English
Published: MDPI AG 2023-01-01
Series:Algorithms
Subjects:
Online Access:https://www.mdpi.com/1999-4893/16/1/55
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author Klaus Röbenack
Stefan Palis
author_facet Klaus Röbenack
Stefan Palis
author_sort Klaus Röbenack
collection DOAJ
description The classical buck converter is a very common DC–DC converter, which reduces an higher input supply voltage to a lower output load voltage. Replacing the inductor and the capacitor by a transmission line, we obtain a distributed buck converter, which can be described by partial differential equations. Therefore, we obtain a completely new class of model. This new topology can be used if the load is operated at some spatial distance from the power supply, where the power supply line is directly used as a reactive network element of the converter. In addition to the analysis and simulation we will also investigate the control of such a converter. In this contribution, we employ a discrepancy-based control technique. Approximating the theoretically derived feedback law yields an easy to implement sliding mode control scheme. The controller design is based on an ideal circuit model and verified by numerical simulation.
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spelling doaj.art-34b16abe6b414e749a24ecb824ed91d62023-11-30T20:51:48ZengMDPI AGAlgorithms1999-48932023-01-011615510.3390/a16010055Set-Point Control of a Spatially Distributed Buck ConverterKlaus Röbenack0Stefan Palis1Institute of Control Theory, Faculty of Electrical and Computer Engineering, Technische Universität Dresden, 01062 Dresden, GermanyIT & Technology, Electrical Engineering, IU International University of Applied Sciences, 99084 Erfurt, GermanyThe classical buck converter is a very common DC–DC converter, which reduces an higher input supply voltage to a lower output load voltage. Replacing the inductor and the capacitor by a transmission line, we obtain a distributed buck converter, which can be described by partial differential equations. Therefore, we obtain a completely new class of model. This new topology can be used if the load is operated at some spatial distance from the power supply, where the power supply line is directly used as a reactive network element of the converter. In addition to the analysis and simulation we will also investigate the control of such a converter. In this contribution, we employ a discrepancy-based control technique. Approximating the theoretically derived feedback law yields an easy to implement sliding mode control scheme. The controller design is based on an ideal circuit model and verified by numerical simulation.https://www.mdpi.com/1999-4893/16/1/55buck converterdistributed modeltransmission linediscrepancy-based controlsliding mode control
spellingShingle Klaus Röbenack
Stefan Palis
Set-Point Control of a Spatially Distributed Buck Converter
Algorithms
buck converter
distributed model
transmission line
discrepancy-based control
sliding mode control
title Set-Point Control of a Spatially Distributed Buck Converter
title_full Set-Point Control of a Spatially Distributed Buck Converter
title_fullStr Set-Point Control of a Spatially Distributed Buck Converter
title_full_unstemmed Set-Point Control of a Spatially Distributed Buck Converter
title_short Set-Point Control of a Spatially Distributed Buck Converter
title_sort set point control of a spatially distributed buck converter
topic buck converter
distributed model
transmission line
discrepancy-based control
sliding mode control
url https://www.mdpi.com/1999-4893/16/1/55
work_keys_str_mv AT klausrobenack setpointcontrolofaspatiallydistributedbuckconverter
AT stefanpalis setpointcontrolofaspatiallydistributedbuckconverter