标题:An Optimized Mesh-Structured Switched-Capacitor Equalizer for Lithium-Ion Battery Strings
作者:Shang Y.; Zhang Q.; Cui N.; Duan B.; Zhang C.
作者机构:[Shang, Y] School of Control Science and Engineering, Shandong University, Jinan, 250061, China.;[ Zhang, Q] School of Control Science and Engineering 更多
来源:IEEE Transactions on Transportation Electrification
出版年:2018
DOI:10.1109/TTE.2018.2870971
关键词:Capacitors; Electric vehicles (EVs); Equalizers; equalizers; Lithium-ion batteries; lithium-ion batteries; mesh structures; Reliability; switched capacitors (SCs); Switches; Transportation
摘要:The existing switched-capacitor (SC)-based equalizers either have slow equalizing speed and low efficiency or have bulky volume and low reliability. Therefore, an optimized mesh-structured switched-capacitor (SC) equalizer (MSSCE) is introduced to achieve a trade-off between the equalization performances and size as well as cost. The proposed MSSCE achieves all the shortest balancing paths from one cell to any cell in a battery string, significantly improving the equalization speed and efficiency. The switching impedance of the proposed MSSCE is derived and analyzed, which provides a design guidance for the switching frequency and the capacitance. A four-cell prototype was set up. Experiment results confirm that the proposed MSSCE enhances the balancing speed with a high efficiency of 91.7%, moreover which is robust to the imbalanced cell voltages. IEEE
收录类别:SCOPUS
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85053625961&doi=10.1109%2fTTE.2018.2870971&partnerID=40&md5=93f07fbf9b08b9003796232c7869bdfa
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