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基于SOC快速均衡的两级超级电容充电均衡器的研究

更新时间:2020-11-01 05:21:15 大小:2M 上传用户:zhengdai查看TA发布的资源 标签:soc超级电容 下载积分:2分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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采用超级电容器作为牵引动力唯一来源的新型储能车正处于快速发展时期。为了满足新型储能装置的工作电压要求,需要将数百个超级电容器串联连接。这种情况下,在快速充电过程中由于能量存储速率的不同极易出现单体电压不平衡现象,从而导致能量存储装置的能量效率和使用寿命降低。论文提出了一种分层均衡方案来解决电压不平衡问题。首先,提出了一种单输入多输出同步整流均衡电路,以保证底部模组内串联超级电容器单体的电压一致性。同时,采用基于模组SOC的均衡策略来解决上部超级电容器模块的电压不平衡问题。Matlab / Saber协同仿真结果表明,分层均衡系统达到了快速平衡和高精度平衡的目标。

New energy storage vehicles which use supercapacitors(SCS) as the unique source of traction power are developing rapidly recently. To satisfy the operating voltage requirement of new energy storage vehicle, hundreds of SCS are needed to be connected in series. In this case, there is a voltage imbalance between the energy storage cells during rapid charging, resulting in reduced energy efficiency and service life of the energy storage device. A layered equalization scheme is proposed to solve the problem of voltage imbalance. First, A single-input multiple-output synchronous rectification equalizing circuit is proposed to ensure voltage consistency of series supercapacitor(SC) monomer in bottom module. Secondly, an equalization strategy based on module SOC is adopted to solve voltage imbalance problem of the upper SC module. The results of Matlab/Saber co-simulation demonstrate that the layered equalization system achieves the target of fast equilibrium and high precision balance.

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基于SOC快速均衡的两级超级电容充电均衡器的研究.pdf 2M

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