Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries

Due to the rapid development and widespread usage of Electric Vehicles (EVs), there will be more and more retired batteries in the future. These retired batteries can be used in energy storage systems to stabilize smart grid operation with high penetration of renewable energy. The battery modules us...

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Autores principales:	Jenhao Teng, Posheng Shen, Bohsien Liu, Siwei Chen
Formato:	article
Lenguaje:	EN
Publicado:	IEEE 2021
Materias:	Electric vehicle bidirectional DC-DC converter retired battery circuit configurable two-phase interleaved half-bridge circuit voltage-doubler circuit Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/c8077313475a433cb03cbfa1d7e20c1a
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spelling	oai:doaj.org-article:c8077313475a433cb03cbfa1d7e20c1a2021-12-01T00:00:40ZCircuit Configurable Bidirectional DC-DC Converter for Retired Batteries2169-353610.1109/ACCESS.2021.3129249https://doaj.org/article/c8077313475a433cb03cbfa1d7e20c1a2021-01-01T00:00:00Zhttps://ieeexplore.ieee.org/document/9620040/https://doaj.org/toc/2169-3536Due to the rapid development and widespread usage of Electric Vehicles (EVs), there will be more and more retired batteries in the future. These retired batteries can be used in energy storage systems to stabilize smart grid operation with high penetration of renewable energy. The battery modules used in EVs are equipped with dedicated bidirectional converters. However, if a dedicated bidirectional converter is required for a retired battery, it will cause resource waste and increase the difficulty of reuse. Therefore, it is vital to design and develop a bidirectional DC-DC converter with a wide-range voltage conversion ratio due to the various voltage levels of retired batteries. Especially, the designed converter should have the bidirectional voltage boost and buck abilities to change the different voltage levels of retired batteries for different application scenarios. A circuit configurable bidirectional DC-DC converter for retired batteries is proposed in this paper. The proposed converter is constituted by cascading a two-phase interleaved half-bridge circuit and a voltage-doubler circuit and can be operated in the interleaved boost/buck mode, single boost/buck mode, cascaded-buck-boost mode, or single buck/boost mode concerning the voltage levels at the terminals of the proposed converter. Due to the circuit configurable design of the proposed converter, a wide-range voltage conversion ratio and bidirectional buck and boost abilities can be achieved. A prototype circuit for the proposed bidirectional DC-DC converter with a rated voltage of 150V at the terminal of two-phase interleaved half-bridge circuit, a rated voltage between 25V and 1050V at the terminal of voltage-doubler circuit, and a rated power of 1100W is designed and implemented. Experimental results show that the proposed converter can be configured into the diverse operating modes for different voltage levels and above 98% of the maximum conversion efficiency can be realized.Jenhao TengPosheng ShenBohsien LiuSiwei ChenIEEEarticleElectric vehiclebidirectional DC-DC converterretired batterycircuit configurabletwo-phase interleaved half-bridge circuitvoltage-doubler circuitElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENIEEE Access, Vol 9, Pp 156187-156199 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electric vehicle bidirectional DC-DC converter retired battery circuit configurable two-phase interleaved half-bridge circuit voltage-doubler circuit Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	Electric vehicle bidirectional DC-DC converter retired battery circuit configurable two-phase interleaved half-bridge circuit voltage-doubler circuit Electrical engineering. Electronics. Nuclear engineering TK1-9971 Jenhao Teng Posheng Shen Bohsien Liu Siwei Chen Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries
description	Due to the rapid development and widespread usage of Electric Vehicles (EVs), there will be more and more retired batteries in the future. These retired batteries can be used in energy storage systems to stabilize smart grid operation with high penetration of renewable energy. The battery modules used in EVs are equipped with dedicated bidirectional converters. However, if a dedicated bidirectional converter is required for a retired battery, it will cause resource waste and increase the difficulty of reuse. Therefore, it is vital to design and develop a bidirectional DC-DC converter with a wide-range voltage conversion ratio due to the various voltage levels of retired batteries. Especially, the designed converter should have the bidirectional voltage boost and buck abilities to change the different voltage levels of retired batteries for different application scenarios. A circuit configurable bidirectional DC-DC converter for retired batteries is proposed in this paper. The proposed converter is constituted by cascading a two-phase interleaved half-bridge circuit and a voltage-doubler circuit and can be operated in the interleaved boost/buck mode, single boost/buck mode, cascaded-buck-boost mode, or single buck/boost mode concerning the voltage levels at the terminals of the proposed converter. Due to the circuit configurable design of the proposed converter, a wide-range voltage conversion ratio and bidirectional buck and boost abilities can be achieved. A prototype circuit for the proposed bidirectional DC-DC converter with a rated voltage of 150V at the terminal of two-phase interleaved half-bridge circuit, a rated voltage between 25V and 1050V at the terminal of voltage-doubler circuit, and a rated power of 1100W is designed and implemented. Experimental results show that the proposed converter can be configured into the diverse operating modes for different voltage levels and above 98% of the maximum conversion efficiency can be realized.
format	article
author	Jenhao Teng Posheng Shen Bohsien Liu Siwei Chen
author_facet	Jenhao Teng Posheng Shen Bohsien Liu Siwei Chen
author_sort	Jenhao Teng
title	Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries
title_short	Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries
title_full	Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries
title_fullStr	Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries
title_full_unstemmed	Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries
title_sort	circuit configurable bidirectional dc-dc converter for retired batteries
publisher	IEEE
publishDate	2021
url	https://doaj.org/article/c8077313475a433cb03cbfa1d7e20c1a
work_keys_str_mv	AT jenhaoteng circuitconfigurablebidirectionaldcdcconverterforretiredbatteries AT poshengshen circuitconfigurablebidirectionaldcdcconverterforretiredbatteries AT bohsienliu circuitconfigurablebidirectionaldcdcconverterforretiredbatteries AT siweichen circuitconfigurablebidirectionaldcdcconverterforretiredbatteries
_version_	1718406163637207040

Circuit Configurable Bidirectional DC-DC Converter for Retired Batteries

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