Efficiency Characteristic of a High-Power Reconfigurable Battery with Series-Connected Topology

Jan Engelhardt; Jan Martin Wilhelm Zepter; Tatiana Gabderakhmanova; Mattia Marinelli

doi:10.23919/IPEC-Himeji2022-ECCE53331.2022.9807176

Efficiency Characteristic of a High-Power Reconfigurable Battery with Series-Connected Topology

Jan Engelhardt^*, Jan Martin Wilhelm Zepter, Tatiana Gabderakhmanova, Mattia Marinelli

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

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Abstract

Reconfigurable batteries can change their cell topology in real time, which enables them to adapt their voltage during operation. This unique capability makes interfacing power converters redundant in applications where batteries are directly coupled with other DC components. The present paper characterizes a prototype of a reconfigurable battery for high power applications, and estimates the efficiency for the complete operating area. The results show that the efficiency is higher during charging and for higher voltage levels. The power losses of the battery components enabling the reconfigurable design only add a minor contribution to the overall losses. Furthermore, the highest efficiencies are achieved at low power values, where DC-DC converters generally show a steep decrease. Hence, this novel battery design is expected to have a better efficiency compared to a conventional battery with power converter.

Original language	English
Title of host publication	Proceedings of 2022 International Power Electronics Conference
Number of pages	7
Publisher	IEEE
Publication date	2022
Pages	2370-2376
ISBN (Electronic)	978-4-8868-6425-3
DOIs	https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807176
Publication status	Published - 2022
Event	International Power Electronics Conference 2022 - Himeji City Culture and Convention Center, Himeji, Japan Duration: 15 May 2022 → 19 May 2022 Conference number: 9 https://www.ipec2022.org/

Conference

Conference	International Power Electronics Conference 2022
Number	9
Location	Himeji City Culture and Convention Center
Country/Territory	Japan
City	Himeji
Period	15/05/2022 → 19/05/2022
Internet address	https://www.ipec2022.org/

Keywords

Battery characterization
Battery losses
Cell model
Cell balancing
Energy storage system
Thevenin equivalent

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@inproceedings{9176fca8f096492ea3e225445d730a61,

title = "Efficiency Characteristic of a High-Power Reconfigurable Battery with Series-Connected Topology",

abstract = "Reconfigurable batteries can change their cell topology in real time, which enables them to adapt their voltage during operation. This unique capability makes interfacing power converters redundant in applications where batteries are directly coupled with other DC components. The present paper characterizes a prototype of a reconfigurable battery for high power applications, and estimates the efficiency for the complete operating area. The results show that the efficiency is higher during charging and for higher voltage levels. The power losses of the battery components enabling the reconfigurable design only add a minor contribution to the overall losses. Furthermore, the highest efficiencies are achieved at low power values, where DC-DC converters generally show a steep decrease. Hence, this novel battery design is expected to have a better efficiency compared to a conventional battery with power converter.",

keywords = "Battery characterization, Battery losses, Cell model, Cell balancing, Energy storage system, Thevenin equivalent",

author = "Jan Engelhardt and Zepter, {Jan Martin Wilhelm} and Tatiana Gabderakhmanova and Mattia Marinelli",

year = "2022",

doi = "10.23919/IPEC-Himeji2022-ECCE53331.2022.9807176",

language = "English",

pages = "2370--2376",

booktitle = "Proceedings of 2022 International Power Electronics Conference",

publisher = "IEEE",

address = "United States",

note = "International Power Electronics Conference 2022 , IPEC2022 ECCE ASIA ; Conference date: 15-05-2022 Through 19-05-2022",

url = "https://www.ipec2022.org/",

}

Engelhardt, J , Zepter, JMW, Gabderakhmanova, T & Marinelli, M 2022, Efficiency Characteristic of a High-Power Reconfigurable Battery with Series-Connected Topology. in Proceedings of 2022 International Power Electronics Conference. IEEE, pp. 2370-2376, International Power Electronics Conference 2022 , Himeji, Japan, 15/05/2022. https://doi.org/10.23919/IPEC-Himeji2022-ECCE53331.2022.9807176

Efficiency Characteristic of a High-Power Reconfigurable Battery with Series-Connected Topology. / Engelhardt, Jan ; Zepter, Jan Martin Wilhelm; Gabderakhmanova, Tatiana et al.
Proceedings of 2022 International Power Electronics Conference. IEEE, 2022. p. 2370-2376.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Efficiency Characteristic of a High-Power Reconfigurable Battery with Series-Connected Topology

AU - Engelhardt, Jan

AU - Zepter, Jan Martin Wilhelm

AU - Gabderakhmanova, Tatiana

AU - Marinelli, Mattia

N1 - Conference code: 9

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N2 - Reconfigurable batteries can change their cell topology in real time, which enables them to adapt their voltage during operation. This unique capability makes interfacing power converters redundant in applications where batteries are directly coupled with other DC components. The present paper characterizes a prototype of a reconfigurable battery for high power applications, and estimates the efficiency for the complete operating area. The results show that the efficiency is higher during charging and for higher voltage levels. The power losses of the battery components enabling the reconfigurable design only add a minor contribution to the overall losses. Furthermore, the highest efficiencies are achieved at low power values, where DC-DC converters generally show a steep decrease. Hence, this novel battery design is expected to have a better efficiency compared to a conventional battery with power converter.

AB - Reconfigurable batteries can change their cell topology in real time, which enables them to adapt their voltage during operation. This unique capability makes interfacing power converters redundant in applications where batteries are directly coupled with other DC components. The present paper characterizes a prototype of a reconfigurable battery for high power applications, and estimates the efficiency for the complete operating area. The results show that the efficiency is higher during charging and for higher voltage levels. The power losses of the battery components enabling the reconfigurable design only add a minor contribution to the overall losses. Furthermore, the highest efficiencies are achieved at low power values, where DC-DC converters generally show a steep decrease. Hence, this novel battery design is expected to have a better efficiency compared to a conventional battery with power converter.

KW - Battery characterization

KW - Battery losses

KW - Cell model

KW - Cell balancing

KW - Energy storage system

KW - Thevenin equivalent

U2 - 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807176

DO - 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807176

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BT - Proceedings of 2022 International Power Electronics Conference

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T2 - International Power Electronics Conference 2022

Y2 - 15 May 2022 through 19 May 2022

ER -

Efficiency Characteristic of a High-Power Reconfigurable Battery with Series-Connected Topology

Abstract

Conference

Keywords

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