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[1]刘征宇,孙庆,马亚东,等.基于 Buck-Boost 电路的能量转移型均衡方案[J].电机与控制学报,2017,21(09):73-79.[doi:10.15938/j.emc.2017.09.010]
 LIU Zheng-yu,SUN Qing,MA Ya-dong,et al.Energy-transferring equalization scheme based on Boost-Buck circuit[J].,2017,21(09):73-79.[doi:10.15938/j.emc.2017.09.010]
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基于 Buck-Boost 电路的能量转移型均衡方案(PDF)
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《电机与控制学报》[ISSN:1007-449X/CN:23-1 408/TM]

卷:
21
期数:
2017年09
页码:
73-79
栏目:
出版日期:
2017-09-01

文章信息/Info

Title:
Energy-transferring equalization scheme based on Boost-Buck circuit
作者:
?刘征宇12 孙庆1 马亚东1 汤伟1 王雪松1
?(1. 合肥工业大学 机械工程学院,安徽 合肥 230009; 2. 安全关键工业测控技术教育部工程研究中心,安徽 合肥 230009)
Author(s):
?LIU Zheng-yu12 SUN Qing1 MA Ya-dong1 TANG Wei1 WANG Xue-song1
?(1. School of Mechanical Engineering,Hefei University of Technology,Hefei 230009,China; 2. Engineering Research Center of Safety Critical Industry Measurement and Control Technology of Ministry of Education,Hefei 230009,China)
关键词:
均衡充放电 能量流向 升降压电路 储能通道 泄荷通道
Keywords:
charge and discharge equalization energy-transferring direction Boost-Buck circuit energy storage channel unloading channel
分类号:
TM 315
DOI:
10.15938/j.emc.2017.09.010
文献标志码:
A
摘要:
?提出了一种基于 Buck-Boost 电路的新型均衡电路,实现了锂离子串联电池组充放电均衡。根据均衡能量流向,采取两种不同的均衡策略: 电池组放电时,均衡能量由电池组向组内荷电状态 ( state of charge,SOC) 较低的单体电池转移; 电池组充电时,均衡能量由电池组中 SOC 较高的单体电池向电池组转移。以单体电池开路电压在线估计为基础,运用开路电压法估算 SOC,选取 SOC 值在一定阈值范围之外的单体电池作为均衡对象,对 6 节串联的磷酸铁锂电池进行了充放电均衡实验。实验结果表明,该方案可以有效减小单体电池间的不一致性,提升电池组的整体性,同时提高了电池组充放电容量。
Abstract:
?A new equalization circuit based on Boost-Buck circuit was proposed,which realizes the charge and discharge equalization of series-connected lithium-ion batteries. Two different balancing strategies were used respectively according to the balanced energy-transferring direction. When battery pack was discharging,the balanced energy was transferred from the battery pack to the batteries with lower stage of charge (SOC); When battery pack was charging,the balanced energy was transferred from the higher SOC batteries to the battery pack. The scheme were based on online estimation of open circuit voltage (OCV)of single cell,which takes advantage of OCV-SOC curve to estimate the stage of charge( SOC), balanced objects were selected whose SOC are outside a certain range and an experiment was performed for six serially connected LiFeP04 battery cells. Experimental results confirm that the inconsistency between the single cells is validly reduced,the integrity of the battery pack is improved and the charging and discharging of battery pack is increased.

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备注/Memo

备注/Memo:
?收稿日期: 2016 - 02 - 22
?基金项目: 国家国际科技合作专项资助项目( 2012DFB10060) ; 合肥工业大学应用科技培养计划项目
作者简介: 刘征宇( 1979—) ,男,副教授,研究方向为新能源汽车能量系统建模与控制、工业物联网; 孙 庆( 1991—) ,男,硕士,研究方向为新能源汽车能量系统建模与控制; 马亚东( 1991—) ,男,硕士,研究方向为新能源汽车能量系统建模与控制; 汤 伟( 1990—) ,男,硕士,研究方向为新能源汽车能量系统建模与控制; 王雪松( 1990—) ,男,硕士,研究方向为新能源汽车能量系统建模与控制。
更新日期/Last Update: 2018-02-06