Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation

Due to the nonlinear characteristics of a photovoltaic (PV) array, its regulation is highly dependent on the operating point. Focusing on a dc-dc boost converter, this paper first shows how the PV voltage and inductor current controls are affected by the PV array. It then proposes to emulate an impe...

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Autores: Urtasun Erburu, Andoni, Samanes Pascual, Javier, Barrios Rípodas, Ernesto, Sanchis Gúrpide, Pablo, Marroyo Palomo, Luis
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2019
País:España
Institución:Universidad Pública de Navarra
Repositorio:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
OAI Identifier:oai:academica-e.unavarra.es:2454/33230
Acceso en línea:https://hdl.handle.net/2454/33230
Access Level:acceso abierto
Palabra clave:Dynamic resistance
Photovoltaic (PV) converters
Robust control
Small-signal modeling
Voltage control
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spelling Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulationUrtasun Erburu, AndoniSamanes Pascual, JavierBarrios Rípodas, ErnestoSanchis Gúrpide, PabloMarroyo Palomo, LuisDynamic resistancePhotovoltaic (PV) convertersRobust controlSmall-signal modelingVoltage controlDue to the nonlinear characteristics of a photovoltaic (PV) array, its regulation is highly dependent on the operating point. Focusing on a dc-dc boost converter, this paper first shows how the PV voltage and inductor current controls are affected by the PV array. It then proposes to emulate an impedance virtually connected to the PV array, making it possible to greatly improve the control robustness. Thanks to the proposed strategy, the crossover frequency variation for the whole operating range is reduced from 42 times for the traditional control to 3.5 times when emulating parallel resistance or to 1.4 times when emulating series and parallel resistances, all with simple implementation. Experimental results with a commercial PV inverter and a 4-kWp PV array validate the theoretical analysis and demonstrate the superior performance of the proposed control.This work was supported in part by Ingeteam Power Technology and in part by Spanish State Research Agency (AEI) FEDER-UE under Grant DPI2016-80641-R.IEEEIngeniería Eléctrica, Electrónica y de ComunicaciónIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren2019info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2454/33230reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarrainstname:Universidad Pública de NavarraInglésinfo:eu-repo/grantAgreement/AEI//DPI2016-80641-R© 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other workinfo:eu-repo/semantics/openAccessoai:academica-e.unavarra.es:2454/332302026-06-17T12:41:47Z
dc.title.none.fl_str_mv Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
title Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
spellingShingle Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
Urtasun Erburu, Andoni
Dynamic resistance
Photovoltaic (PV) converters
Robust control
Small-signal modeling
Voltage control
title_short Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
title_full Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
title_fullStr Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
title_full_unstemmed Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
title_sort Control of a photovoltaic array interfacing current-mode-controlled boost converter based on virtual impedance emulation
dc.creator.none.fl_str_mv Urtasun Erburu, Andoni
Samanes Pascual, Javier
Barrios Rípodas, Ernesto
Sanchis Gúrpide, Pablo
Marroyo Palomo, Luis
author Urtasun Erburu, Andoni
author_facet Urtasun Erburu, Andoni
Samanes Pascual, Javier
Barrios Rípodas, Ernesto
Sanchis Gúrpide, Pablo
Marroyo Palomo, Luis
author_role author
author2 Samanes Pascual, Javier
Barrios Rípodas, Ernesto
Sanchis Gúrpide, Pablo
Marroyo Palomo, Luis
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingeniería Eléctrica, Electrónica y de Comunicación
Ingeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzaren
dc.subject.none.fl_str_mv Dynamic resistance
Photovoltaic (PV) converters
Robust control
Small-signal modeling
Voltage control
topic Dynamic resistance
Photovoltaic (PV) converters
Robust control
Small-signal modeling
Voltage control
description Due to the nonlinear characteristics of a photovoltaic (PV) array, its regulation is highly dependent on the operating point. Focusing on a dc-dc boost converter, this paper first shows how the PV voltage and inductor current controls are affected by the PV array. It then proposes to emulate an impedance virtually connected to the PV array, making it possible to greatly improve the control robustness. Thanks to the proposed strategy, the crossover frequency variation for the whole operating range is reduced from 42 times for the traditional control to 3.5 times when emulating parallel resistance or to 1.4 times when emulating series and parallel resistances, all with simple implementation. Experimental results with a commercial PV inverter and a 4-kWp PV array validate the theoretical analysis and demonstrate the superior performance of the proposed control.
publishDate 2019
dc.date.none.fl_str_mv 2019
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2454/33230
url https://hdl.handle.net/2454/33230
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/AEI//DPI2016-80641-R
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv IEEE
publisher.none.fl_str_mv IEEE
dc.source.none.fl_str_mv reponame:Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
instname:Universidad Pública de Navarra
instname_str Universidad Pública de Navarra
reponame_str Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
collection Academica-e. Repositorio Institucional de la Universidad Pública de Navarra
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812455

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