@inproceedings{185fe1f27b184880945bbe69525e4124,
title = "Modular approach for continuous cell-level balancing to improve performance of large battery packs",
abstract = "Energy storage systems require battery cell balancing circuits to avoid divergence of cell state of charge (SOC). A modular approach based on distributed continuous cell-level control is presented that extends the balancing function to higher level pack performance objectives such as improving power capability and increasing pack lifetime. This is achieved by adding DC-DC converters in parallel with cells and using state estimation and control to autonomously bias individual cell SOC and SOC range, forcing healthier cells to be cycled deeper than weaker cells. The result is a pack with improved degradation characteristics and extended lifetime. The modular architecture and control concepts are developed and hardware results are demonstrated for a 91.2 Wh battery pack consisting of four series li-ion battery cells and four dual active bridge (DAB) bypass DC-DC converters.",
author = "{Ur. Rehman}, {M. Muneeb} and Michael Evzelman and Kelly Hathaway and Regan Zane and Plett, {Gregory L.} and Kandler Smith and Eric Wood and Dragan Maksimovic",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.",
year = "2014",
month = nov,
day = "11",
doi = "10.1109/ECCE.2014.6953991",
language = "English",
series = "2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014",
publisher = "Institute of Electrical and Electronics Engineers",
pages = "4327--4334",
booktitle = "2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014",
address = "United States",
}
