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


Manuel Kuder

Bundeswehr University Munich

Julian Schneider

STABL Energy GmbH

Bundeswehr University Munich

Anton Kersten

Chalmers, Electrical Engineering, Electric Power Engineering

Torbjörn Thiringer

Chalmers, Electrical Engineering, Electric Power Engineering

Richard Eckerle

Bundeswehr University Munich

Thomas Weyh

Bundeswehr University Munich

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
Nuremberg, Germany,

Loss and EMI reduction in electrified vehicle through the usage of a multilevel converter

Swedish Energy Agency (44807-1), 2017-07-01 -- 2021-12-31.

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Subject Categories

Vehicle Engineering

Electrical Engineering, Electronic Engineering, Information Engineering

Energy Systems

Control Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering

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