Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal Control

In this paper, we study the time optimal control problem in a DC-DC buck converter in the underdamped oscillatory regime. In particular, we derive analytic expressions for the admissible regions in the state space, satisfying the condition that every point within the region is reachable in optimal t...

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Main Authors: Ilya Dikariev, Fabiola Angulo, David Angulo-Garcia
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Micromachines
Subjects:
Online Access:https://www.mdpi.com/2072-666X/11/9/834
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author Ilya Dikariev
Fabiola Angulo
David Angulo-Garcia
author_facet Ilya Dikariev
Fabiola Angulo
David Angulo-Garcia
author_sort Ilya Dikariev
collection DOAJ
description In this paper, we study the time optimal control problem in a DC-DC buck converter in the underdamped oscillatory regime. In particular, we derive analytic expressions for the admissible regions in the state space, satisfying the condition that every point within the region is reachable in optimal time with a single switching action. We then make use of the general result to establish the minimum and maximum variation allowed to the load in two predefined design set-ups that fulfills the time optimal single switching criteria. Finally, we make use of numerical simulations to show the performance of the proposed control under changes in the reference voltage and load resistance.
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spelling doaj.art-b1bb4a5b29f44c2f91f5ed58b1735a542023-11-20T12:02:17ZengMDPI AGMicromachines2072-666X2020-08-0111983410.3390/mi11090834Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal ControlIlya Dikariev0Fabiola Angulo1David Angulo-Garcia2Department of Optimization, Campus Cottbus, Institute of Mathematics, Brandenburg University of Technology, Platz der Deutschen Einheit 1, 03046 Cottbus, GermanyDepartamento de Ingeniería Eléctrica, Electrónica y Computación—Bloque Q, Campus La Nubia, Facultad de Ingeniería y Arquitectura, Universidad Nacional de Colombia—Sede Manizales, Manizales 170003, ColombiaGrupo de Modelado Computacional—Dinámica y Complejidad de Sistemas, Instituto de Matemáticas Aplicadas, Universidad de Cartagena, Carrera 6 # 36-100, Cartagena de Indias 130001, ColombiaIn this paper, we study the time optimal control problem in a DC-DC buck converter in the underdamped oscillatory regime. In particular, we derive analytic expressions for the admissible regions in the state space, satisfying the condition that every point within the region is reachable in optimal time with a single switching action. We then make use of the general result to establish the minimum and maximum variation allowed to the load in two predefined design set-ups that fulfills the time optimal single switching criteria. Finally, we make use of numerical simulations to show the performance of the proposed control under changes in the reference voltage and load resistance.https://www.mdpi.com/2072-666X/11/9/834DC-DC synchronous buck convertertime optimal controlpontryagin maximum principlecontrol synthesis
spellingShingle Ilya Dikariev
Fabiola Angulo
David Angulo-Garcia
Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal Control
Micromachines
DC-DC synchronous buck converter
time optimal control
pontryagin maximum principle
control synthesis
title Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal Control
title_full Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal Control
title_fullStr Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal Control
title_full_unstemmed Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal Control
title_short Single-Switching Reachable Operation Points in a DC-DC Buck Converter: An Approximation from Time Optimal Control
title_sort single switching reachable operation points in a dc dc buck converter an approximation from time optimal control
topic DC-DC synchronous buck converter
time optimal control
pontryagin maximum principle
control synthesis
url https://www.mdpi.com/2072-666X/11/9/834
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AT fabiolaangulo singleswitchingreachableoperationpointsinadcdcbuckconverteranapproximationfromtimeoptimalcontrol
AT davidangulogarcia singleswitchingreachableoperationpointsinadcdcbuckconverteranapproximationfromtimeoptimalcontrol