Battery charger based on a resonant converter for high-power LiFePO4 batteries

A new battery charger, based on a multiphase resonant converter, for a high-capacity 48 V LiFePO4 lithium-ion battery is presented. LiFePO4 batteries are among the most widely used today and offer high energy efficiency, high safety performance, very good temperature behavior, and a long cycle life....

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Autores: Brañas Reyes, Christian|||0000-0001-8632-7001, Viera Pérez, Juan Carlos, Azcondo Sánchez, Francisco Javier|||0000-0002-3200-5821, Casanueva Arpide, Rosario|||0000-0002-0754-8250, González Vega, Manuela, Díaz Rodríguez, Francisco Javier
Tipo de recurso: artículo
Fecha de publicación:2021
País:España
Institución:Universidad de Cantabria (UC)
Repositorio:UCrea Repositorio Abierto de la Universidad de Cantabria
Idioma:inglés
OAI Identifier:oai:repositorio.unican.es:10902/20612
Acceso en línea:http://hdl.handle.net/10902/20612
Access Level:acceso abierto
Palabra clave:Lithium-ion battery
Battery modeling
Battery chargers
Power supplies
Resonant inverters
Phase control
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spelling Battery charger based on a resonant converter for high-power LiFePO4 batteriesBrañas Reyes, Christian|||0000-0001-8632-7001Viera Pérez, Juan CarlosAzcondo Sánchez, Francisco Javier|||0000-0002-3200-5821Casanueva Arpide, Rosario|||0000-0002-0754-8250González Vega, ManuelaDíaz Rodríguez, Francisco JavierLithium-ion batteryBattery modelingBattery chargersPower suppliesResonant invertersPhase controlA new battery charger, based on a multiphase resonant converter, for a high-capacity 48 V LiFePO4 lithium-ion battery is presented. LiFePO4 batteries are among the most widely used today and offer high energy efficiency, high safety performance, very good temperature behavior, and a long cycle life. An accurate control of the charging current is necessary to preserve the battery health. The design of the charger is presented in a tight correlation with a battery model based on experimental data obtained at the laboratory. With the aim of reducing conduction losses, the general analysis of the inverter stage obtained from the parallel connection of N class D LCpCs resonant inverters is carried out. The study provides criteria for proper selection of the transistors and diodes as well as the value of the DC-link voltage. The effect of the leakage inductance of the transformer on the resonant circuit is also evaluated, and a design solution to cancel it is proposed. The output stage is based on a multi-winding current-doubler rectifier. The converter is designed to operate in open-loop operation as an input voltage-dependent current source, but in closed-loop operation, it behaves as a voltage source with an inherent maximum output current limitation, which provides high reliability throughout the whole charging process. The curve of efficiency of the proposed charger exhibits a wide flat zone that includes light load conditions.This work was funded by the Spanish Ministry of Science and the EU through the projects RTI2018-095138-B-C31: “Power Electronics for the Grid and Industry Applications”, TEC2016-80700-R (AEI/FEDER/UE), PID2019-110955RB-I00, and by the Principality of Asturias via Project FC-IDI/2018/000226.MDPIUniversidad de Cantabria20212021-01-23journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articlehttp://hdl.handle.net/10902/20612Electronics, 2021, 10(3), 266reponame:UCrea Repositorio Abierto de la Universidad de Cantabriainstname:Universidad de Cantabria (UC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.unican.es:10902/206122026-06-02T12:39:31Z
dc.title.none.fl_str_mv Battery charger based on a resonant converter for high-power LiFePO4 batteries
title Battery charger based on a resonant converter for high-power LiFePO4 batteries
spellingShingle Battery charger based on a resonant converter for high-power LiFePO4 batteries
Brañas Reyes, Christian|||0000-0001-8632-7001
Lithium-ion battery
Battery modeling
Battery chargers
Power supplies
Resonant inverters
Phase control
title_short Battery charger based on a resonant converter for high-power LiFePO4 batteries
title_full Battery charger based on a resonant converter for high-power LiFePO4 batteries
title_fullStr Battery charger based on a resonant converter for high-power LiFePO4 batteries
title_full_unstemmed Battery charger based on a resonant converter for high-power LiFePO4 batteries
title_sort Battery charger based on a resonant converter for high-power LiFePO4 batteries
dc.creator.none.fl_str_mv Brañas Reyes, Christian|||0000-0001-8632-7001
Viera Pérez, Juan Carlos
Azcondo Sánchez, Francisco Javier|||0000-0002-3200-5821
Casanueva Arpide, Rosario|||0000-0002-0754-8250
González Vega, Manuela
Díaz Rodríguez, Francisco Javier
author Brañas Reyes, Christian|||0000-0001-8632-7001
author_facet Brañas Reyes, Christian|||0000-0001-8632-7001
Viera Pérez, Juan Carlos
Azcondo Sánchez, Francisco Javier|||0000-0002-3200-5821
Casanueva Arpide, Rosario|||0000-0002-0754-8250
González Vega, Manuela
Díaz Rodríguez, Francisco Javier
author_role author
author2 Viera Pérez, Juan Carlos
Azcondo Sánchez, Francisco Javier|||0000-0002-3200-5821
Casanueva Arpide, Rosario|||0000-0002-0754-8250
González Vega, Manuela
Díaz Rodríguez, Francisco Javier
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad de Cantabria
dc.subject.none.fl_str_mv Lithium-ion battery
Battery modeling
Battery chargers
Power supplies
Resonant inverters
Phase control
topic Lithium-ion battery
Battery modeling
Battery chargers
Power supplies
Resonant inverters
Phase control
description A new battery charger, based on a multiphase resonant converter, for a high-capacity 48 V LiFePO4 lithium-ion battery is presented. LiFePO4 batteries are among the most widely used today and offer high energy efficiency, high safety performance, very good temperature behavior, and a long cycle life. An accurate control of the charging current is necessary to preserve the battery health. The design of the charger is presented in a tight correlation with a battery model based on experimental data obtained at the laboratory. With the aim of reducing conduction losses, the general analysis of the inverter stage obtained from the parallel connection of N class D LCpCs resonant inverters is carried out. The study provides criteria for proper selection of the transistors and diodes as well as the value of the DC-link voltage. The effect of the leakage inductance of the transformer on the resonant circuit is also evaluated, and a design solution to cancel it is proposed. The output stage is based on a multi-winding current-doubler rectifier. The converter is designed to operate in open-loop operation as an input voltage-dependent current source, but in closed-loop operation, it behaves as a voltage source with an inherent maximum output current limitation, which provides high reliability throughout the whole charging process. The curve of efficiency of the proposed charger exhibits a wide flat zone that includes light load conditions.
publishDate 2021
dc.date.none.fl_str_mv 2021
2021-01-23
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10902/20612
url http://hdl.handle.net/10902/20612
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv Electronics, 2021, 10(3), 266
reponame:UCrea Repositorio Abierto de la Universidad de Cantabria
instname:Universidad de Cantabria (UC)
instname_str Universidad de Cantabria (UC)
reponame_str UCrea Repositorio Abierto de la Universidad de Cantabria
collection UCrea Repositorio Abierto de la Universidad de Cantabria
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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