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World Electric Vehicle Journal is published by MDPI from Volume 9 issue 1 (2018). Articles in this Issue were published by The World Electric Vehicle Association (WEVA) and its member the European Association for e-Mobility (AVERE), the Electric Drive Transportation Association (EDTA), and the Electric Vehicle Association of Asia Pacific (EVAAP). They are hosted by MDPI on mdpi.com as a courtesy and upon agreement with AVERE.
Open AccessArticle

Realising Serial Hybrid Energy Storage Systems (sHESS) by Implementing Switching Circuits on Battery Cell Level

Chair of Electrical Energy Storage Technology (EES), Technical University of Munich (TUM), Arcisstr. 21, 80333 Munich, Germany
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World Electr. Veh. J. 2016, 8(2), 371-378; https://doi.org/10.3390/wevj8020371
Published: 24 June 2016
PDF [873 KB, uploaded 15 May 2018]

Abstract

One approach to influence the current flow through the battery pack is to implement switching circuits. Two switching elements are necessary for each cell-stage to be bypassed or activated. This allows active load management. Thus the utilisation of the battery pack can be maximised in every situation. Adaptive control algorithms allow several kinds of operating strategies. Furthermore, dynamic output voltage can be generated to serve the best output for the downstream voltage level. A battery pack with an additional connection at its central point allows the generation of sine-shaped output voltages. As consequence of individual load management, different types of batteries or even different kinds of energy storages can be interconnected to built serial hybrid electrical energy storages. This novel approach allows precisely tailored battery packs for each application to enhance performance and energy supply.
Keywords: load management; BMS (Battery Management System); lithium battery; charge equalization; DC-AC load management; BMS (Battery Management System); lithium battery; charge equalization; DC-AC
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Horsche, M.F.; Sturm, M.; Jossen, A. Realising Serial Hybrid Energy Storage Systems (sHESS) by Implementing Switching Circuits on Battery Cell Level. World Electr. Veh. J. 2016, 8, 371-378.

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