Assisting Converter Based Integrated Battery Management System for Automotive Applications
Conference: PCIM Europe 2015 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/19/2015 - 05/20/2015 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2015
Pages: 8Language: englishTyp: PDF
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Authors:
Shousha, Mahmoud; Gong, Zhe; Prodic, Aleksandar (*Laboratory for Power Management and Integrated SMPS, ECE Department, University of Toronto, Canada)
Marten, Victor; Milios, John (Sendyne Corporation, New York, USA)
Abstract:
This paper introduces a new battery management architecture for automotive applications based on multi phase dual active bridge (DAB) converter. This new architecture integrates the voltage step-up, balancing, and charging functions inside a single converter topology to present a cost-effective and an energy efficient solution. The step-up function is obtained using assisting conversion concept and hence high power processing efficiency and small converter volume are achieved. The operation of the system is regulated by a hardware-efficient digital controller that provides control of all of the three functions at the same time. Experimental results obtained with a 24-to-48V, 200W, 100 KHz converter for small scooters demonstrate that the assisting DAB converter is capable of providing the three previously mentioned functions while running at a peak efficiency of 95.4% and processing only a 50% of the output power.