Reconfigurable Stationary Battery with Adaptive Cell Switching for Electric Vehicle Fast-Charging

Engelhardt, Jan; Gabderakhmanova, Tatiana; Rohde, Gunnar; Marinelli, Mattia

doi:10.1109/upec49904.2020.9209774

Cited by 14 publications

(11 citation statements)

References 9 publications

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“…Furthermore, it can conduct current in both forward and reverse directions [536]. Therefore, MOSFETs are widely used for IBS-functionalities in the literature [371,375,377,379,380,400,401,441,442,456,460,463,[529][530][531][543][544][545][546][547][548][549][550][551].…”

Section: Current Capabilitymentioning

confidence: 99%

Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

et al. 2021

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This review provides an overview of new strategies to address the current challenges of automotive battery systems: Intelligent Battery Systems. They have the potential to make battery systems more performant and future-proof for coming generations of electric vehicles. The essential features of Intelligent Battery Systems are the accurate and robust determination of cell individual states and the ability to control the current of each cell by reconfiguration. They enable high-level functions like fault diagnostics, multi-objective balancing strategies, multilevel inverters, and hybrid energy storage systems. State of the art and recent advances in these topics are compiled and critically discussed in this article. A comprising, critical discussion of the implementation aspects of Intelligent Battery Systems complements the review. We touch on sensing, battery topologies and management, switching elements, communication architecture, and impact on the single-cell. This review contributes to transferring the best technologies from research to product development.

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Section: Current Capabilitymentioning

confidence: 99%

Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

et al. 2021

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“…One of the project use cases, that takes place on the Danish island of Bornholm, is dedicated to the demonstration of a DC microgrid, comprised of a 624 kW / 312 kWh innovative reconfigurable battery, two 175 kW EV fast chargers, and a 61 kW PV facility. The battery technology is based on a novel approach, which provides a possibility to repeatedly engage/disengage individual battery cells in a real-time fashion, and by this form a topology that can meet the request of the specific appliance it is connected to [7], [8].…”

Section: ) Insulaementioning

confidence: 99%

Battery Storage Demonstration Projects An Overview Across Europe

Divshali

Mäki

Evens

et al. 2021

2021 IEEE PES Innovative Smart Grid Technologies Europe (ISGT Europe)

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This paper summarises results and experiences from several demonstration projects across European countries in the field of battery energy storage system (BESS) integration to the power system. These research projects are selected among research institutes and universities that are part of the European Energy Research Alliance (EERA) Joint Program on Smart Grids. The paper categorizes these projects according to the demonstrated applications of BESS and then reviews specific aspects of each project. This paper provides an opportunity to find out the summary of the most recent results as well as challenges and open research questions in projects focusing on different BESS application in the power system.

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“…Within the research projects INSULAE and TOPChargE, we explore the benefits of a novel battery that has the intrinsic capability to adapt its voltage during operation. The cells of this battery are equipped with semiconductor switches that can engage or bypass individual cells, achieving a reconfigurable topology [11]. Besides advanced cell balancing capabilities [10], this design allows to actively control the power flow to and from the battery by changing the total number of active cells.…”

Section: Introductionmentioning

confidence: 99%

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

Engelhardt

Zepter

Gabderakhmanova

et al. 2022

2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)

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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.

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Reconfigurable Stationary Battery with Adaptive Cell Switching for Electric Vehicle Fast-Charging

Cited by 14 publications

References 9 publications

Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

Critical Review of Intelligent Battery Systems: Challenges, Implementation, and Potential for Electric Vehicles

Battery Storage Demonstration Projects An Overview Across Europe

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

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