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基于极简三电容补偿的单级式无线电池充电器
作者:
作者单位:

1.东南大学电气工程学院,江苏省南京市 210096;2.江苏省智能电网技术与装备重点实验室(东南大学),江苏省南京市 210096;3.南京南瑞继保电气有限公司,江苏省南京市 211102

摘要:

为适应锂电池的先恒流后恒压充电曲线,感应式无线电池充电器应提供其所需的输出,同时在整个充电过程中还应具备阻性输入阻抗,以降低器件应力、减少无功环流。针对4种基本补偿拓扑无法同时实现以上要求,而高阶补偿网络必须依赖更多器件实现上述需求的问题,系统地推导了具备阻性输入阻抗和恒定输出特性的基于极简三电容补偿的单级式无线电池充电器的设计自由度,分析其补偿参数与工作频率的约束条件。同时,对三电容补偿的串/串并(S/SP)和串/并串(S/PS)结构的输出特性进行分析和对比,分析补偿元件参数对输入阻抗角和输出增益的影响,以指导软开关设计。最后,搭建一台输出为48 V/2 A的单级式无线电池充电器以证明以上设计的可行性。

关键词:

基金项目:

国家自然科学基金资助项目(52077038);江苏省自然科学基金资助项目(BK20181280);中央高校基本科研业务费专项资金资助项目(2242020k1G007)。

通信作者:

作者简介:

郁继栋(1995—),男,硕士研究生,主要研究方向:无线电能传输。E-mail:220182755@seu.edu.cn
曲小慧(1981—),女,通信作者,博士,教授,博士生导师,主要研究方向:电子电子功率变换、无线电能传输。E-mail:xhqu@seu.edu.cn
王国雨(1995—),男,硕士研究生,主要研究方向:无线电能传输。E-mail:522558305@qq.com


Single-stage Inductive Power Transferred Battery Charger Based on Minimal Three-capacitor Compensation
Author:
Affiliation:

1.School of Electrical Engineering, Southeast University, Nanjing 210096, China;2.Jiangsu Key Laboratory of Smart Grid Technology and Equipment (Southeast University), Nanjing 210096, China;3.NR Electric Co., Ltd., Nanjing 211102, China

Abstract:

To adapt to the charging profile of lithium-ion battery consisting of an initial constant current (CC) and a subsequent constant voltage (CV), an inductive power transferred battery charger should provide the required output as well as resistive input impedance to reduce device stresses and reactive power during the whole charging process. In view of the fact that the four basic compensation topologies cannot meet the above requirements at the same time, and the high-order compensation network must rely on more devices to satisfy the above requirements, the design freedom of single-stage inductive power transferred battery chargers based on the minimal three-capacitor compensation is systematically derived, which has the characteristics of resistive input impedance and constant output, and the constraints of its compensation parameters and operation frequency are analyzed. Meanwhile, the output characteristics of the S/SP and S/PS structures of three-capacitor compensation are analyzed and compared, and the influence of the compensation component parameters on the input impedance angle and output gain is analyzed to guide the soft switch design. Finally, a single-stage inductive power transferred battery charger with an output of 48 V/2 A is built to verify the feasibility of the above design.

Keywords:

Foundation:
This work is supported by National Natural Science Foundation of China (No. 52077038), Jiangsu Provincial Natural Science Foundation of China (No. BK20181280) and Fundamental Research Funds for the Central Universities (No. 2242020k1G007).
引用本文
[1]郁继栋,曲小慧,王国雨,等.基于极简三电容补偿的单级式无线电池充电器[J].电力系统自动化,2021,45(14):165-172. DOI:10.7500/AEPS20201015003.
YU Jidong, QU Xiaohui, WANG Guoyu, et al. Single-stage Inductive Power Transferred Battery Charger Based on Minimal Three-capacitor Compensation[J]. Automation of Electric Power Systems, 2021, 45(14):165-172. DOI:10.7500/AEPS20201015003.
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  • 收稿日期:2020-10-15
  • 最后修改日期:2021-03-12
  • 录用日期:
  • 在线发布日期: 2021-07-21
  • 出版日期:
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