2014
DOI: 10.1109/itec-ap.2014.6941187
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Abstract: In this paper, battery balancing algorithm for serial multi-module UPS system is proposed. The battery balancing algorithm is performed by the output power control of each UPS modules for eliminating SOC difference of batteries respectively. So, the coulomb counting method is used to estimate SOC of the batteries. The reference is compensated with SOC difference and according to magnitude order of SOC . Finally, the output voltage becomes sum of output voltage of UPS modules and the utilization of the battery…

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