Battery modular multilevel management (Bm3) converter applied at battery cell level for electric vehicles and energy storages
Paper in proceedings, 2020

This paper introduces a modular battery system based on an integrated 3-switch inverter topology, referred to as Battery Modular Multilevel Management (BM3) system. The 3-switch topology can be directly applied on battery cell level. In interconnection with the other battery cells, series and parallel connections can be flexibly formed across the battery modules to synthesize any kind of output voltage. In this manner the BM3 topology can work as a flexible DC/AC or DC/DC converter. Furthermore, individual cells can be bypassed, so that each cell can be charged and drained according to their individual capacity. Thus, any additional passive or active balancing circuitry becomes obsolete. Within the frame of this paper’s analysis, the basic functionality of the BM3 topology is explained and the possible application as a DC/AC inverter is validated using a small scale prototype setup.

Author

Manuel Kuder

Universität Der Bundeswehr München

Julian Schneider

Universität Der Bundeswehr München

STABL Energy GmbH

Anton Kersten

Chalmers, Electrical Engineering, Electric Power Engineering, Electrical Machines and Power Electronics

Torbjörn Thiringer

Chalmers, Electrical Engineering, Electric Power Engineering, Electrical Machines and Power Electronics

Richard Eckerle

Universität Der Bundeswehr München

Thomas Weyh

Universität Der Bundeswehr München

PCIM Europe Conference Proceedings

21913358 (eISSN)

Vol. 1 1726-1733

International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, PCIM Europe 2020
Online, ,

Subject Categories

Other Chemical Engineering

Biomedical Laboratory Science/Technology

Other Electrical Engineering, Electronic Engineering, Information Engineering

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Latest update

1/4/2021 1