A Switched-Coupling-Capacitor Equalizer for Series-Connected Battery Strings
A Switched-Coupling-Capacitor Equalizer for Series-Connected Battery Strings
复制标题
串联电池组的开关耦合电容均衡器
DOI：
10.1109/tpel.2016.2638318
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发表时间：
2017-10
影响因子：
6.7
通讯作者：
Mi Chunting Chris
中科院分区：
文献类型：
--
作者：
Shang Yunlong;Xia Bing;Lu Fei;Zhang Chenghui;Cui Naxin;Mi Chunting Chris
开关电容均衡器具有成本低、体积小、易于控制等优点，在各种有源电池均衡方法中具有广阔的应用前景。然而，当SC均衡器应用于长电池串时，均衡速度通常较慢，均衡效率严重低下。为此，提出了一种自动开关耦合电容均衡器（SCCE），可实现电池组任意单元间的均衡。每个电池单元仅需要两个开关和一个电容器。所有MOS管由一对互补脉宽调制信号控制，能量可以自动地直接从任何较高电压的电池传递到任何较低电压的电池，而不需要电池监测电路，导致高平衡效率和速度与电池数量和初始电池电压无关。与传统的均衡器使用额外的组件进行模块之间的均衡相反，所提出的均衡器共享单个转换器用于单元和模块之间的均衡，从而导致更小的尺寸和更低的成本。四个锂电池单元的原型实现，和建议SCCE和传统的SC均衡器之间的实验比较。实验结果表明，所提出的拓扑具有显着改善的平衡性能，测得的峰值效率为92.7%。
Due to the low cost, small size, and easy control, the switched-capacitor (SC) equalizer is promising among all types of active cell balancing methods. However, the balancing speed is generally slow and the balancing efficiency is seriously low when the SC equalizer is applied into a long battery string. Therefore, an automatic switched-coupling-capacitor equalizer (SCCE) is proposed, which can realize the any-cells-to-any-cells equalization for a battery string. Only two switches and one capacitor are required for each battery cell. All mosfets are controlled by one pair of complementary pulse width modulation signals, and energy can be automatically and directly delivered from any higher voltage cells to any lower voltage ones without the need of cell monitoring circuits, leading to a high balancing efficiency and speed independent of the cell number and the initial cell voltages. Contrary to the conventional equalizers using additional components for the equalization among modules, the proposed equalizer shares a single converter for the equalization among cells and modules, resulting in smaller size and lower cost. A prototype for four lithium battery cells is implemented, and an experimental comparison between the proposed SCCE and the conventional SC equalizer is presented. Experimental results show the proposed topology exhibits a substantially improved balancing performance, and the measured peak efficiency is 92.7%.
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影响因子：
6.7
作者：
Yuanmao Ye;K. W. E. Cheng;Y. Yeung
通讯作者：
Yuanmao Ye;K. W. E. Cheng;Y. Yeung
影响因子：
6.7
作者：
Zhiliang Zhang;Handong Gui;Dong-Jie Gu;Yang Yang-Yang;X. Ren
通讯作者：
Zhiliang Zhang;Handong Gui;Dong-Jie Gu;Yang Yang-Yang;X. Ren
影响因子：
6.7
作者：
Y. Chen;Xiaofang Liu;Yangyi Cui;Jiming Zou;Shiyan Yang
通讯作者：
Y. Chen;Xiaofang Liu;Yangyi Cui;Jiming Zou;Shiyan Yang
影响因子：
6.7
作者：
A. Imtiaz;Faisal Khan
通讯作者：
A. Imtiaz;Faisal Khan
DOI：
10.1109/jestpe.2015.2418339
发表时间：
2015-04
影响因子：
5.5
作者：
Yuanmao Ye;K. Cheng
通讯作者：
Yuanmao Ye;K. Cheng