@inproceedings{9225bfce4cd944b59b6bc151035442b1,
title = "A Multiway Bidirectional Multiport-Ac-Coupled (MAC) Battery Balancer with Online Electrochemical Impedance Spectroscopy",
abstract = "Battery management systems (BMS) are key to various applications ranging from electric vehicles to grid-tied energy storage systems. Active battery balancers are needed for BMS in order to extend the battery lifetime and maintain high system performance. This paper presents a multiway bidirectional multiport-ac-coupled (MAC) battery balancer architecture based on a multi-active-bridge (MAB) converter. The operation, modeling, and power flow control of the MAC converter are detailed and analyzed. Magnetic models are used to further examine the multi-input multi-output (MIMO) power flow in the multi-winding transformer which couples all ports together. The converter is able to perform active battery balancing as well as online diagnostics through built-in electrochemical impedance spectroscopy (EIS). A 12-port MAC battery balancer was built and tested to verify the functionality and effectiveness of the proposed approach.",
keywords = "battery balancer, electro-chemical impedance spectroscopy, multiport converter, multiport-ac-coupled",
author = "Youssef Elasser and Yenan Chen and Ming Liu and Minjie Chen",
note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 35th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2020 ; Conference date: 15-03-2020 Through 19-03-2020",
year = "2020",
month = mar,
doi = "10.1109/APEC39645.2020.9124422",
language = "English (US)",
series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "1475--1482",
booktitle = "APEC 2020 - 35th Annual IEEE Applied Power Electronics Conference and Exposition",
address = "United States",
}