Low-Cost, Precision Battery Management System with Active Balancing up to ±10 A

Conference: PCIM Europe 2014 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/20/2014 - 05/22/2014 at Nürnberg, Deutschland

Proceedings: PCIM Europe 2014

Pages: 8Language: englishTyp: PDF

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Maier, Wenzel (Graz University of Technology, Austria)
Carneiro Bastos, Izabella (Federal University of Alfenas, Brazil)
Schmid, Andreas (University of Leoben, Austria)

Advanced technology development of an electronic unit for monitoring and active balancing of large battery systems, such as those used in electro-mobility or emergency power supplies. By the new concept and its corresponding implementation (soft- and hardware), an accurate cell-voltage measurement and therefore a condition-monitoring of each series-connected battery cells can be done. The innovative design enables to charge and discharge each cell with an efficiency of about 80 %. The costs could be reduced about 2,5 - 3,5 € per cell which is desirable by the industrial markets.