Charge equalization for an electric vehicle battery system |
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Authors: | Kutkut NH Wiegman HLN Divan DM Novotny DW |
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Institution: | Soft Switching Technol., Middleton, WI; |
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Abstract: | Charge equalization for series connected battery strings has important ramifications on battery life. It enhances the uniformity of the battery cells and hence improves the life of the battery as a whole. A new charge equalization technique for a series string of battery cells has been recently proposed by the authors. The basic technique utilizes a simple isolated dc-to-dc converter with a capacitive output filter along with a multiwinding transformer. The possibility of integrating the trickle charge function with the charge equalization function is potentially very attractive, as it can lead to an efficient and low cost implementation |
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