Design of Electric Vehicle Wireless Charging System with Automatic Charging Mode Alteration at Secondary Side

被引：0
|
作者：
Ji L. [1 ,2 ]
Wang L. [1 ,3 ]
Liao C. [1 ,3 ]
Li S. [1 ,2 ]
机构：
[1] Key Laboratory of Power Electronics and Electric Drive of Chinese Academy of Sciences, Institute of Electrical Engineering, Chinese Academy of Sciences, Beijing
[2] University of Chinese Academy of Sciences, Beijing
[3] Collaborative Innovation Center for Electric Vehicles in Beijing, Beijing
来源：
Dianli Xitong Zidonghue | / 23卷 / 137-142期
关键词：
Battery charging; Constant current charging; Constant voltage charging; Resonant compensation network;
D O I：
10.7500/AEPS20170609006
中图分类号：
学科分类号：
摘要：
In the process of wireless charging for electric vehicles, the constant current (CC) mode must be changed to constant voltage (CV) mode immediately and smoothly in order to ensure the safety of batteries, which always needs wireless communication between the primary side and the secondary side and complex control methods at the primary side. This paper proposed a method automatically and rapidly changed between the CC mode and the CV mode by changing the resonant compensation network at the secondary side without communication and complex control process. Additionally, a method for designing the parameters at the secondary side is proposed to ensure the stability of the battery voltage at the changing moment. By an example of changing from LCC-LCC to LCC-S resonant compensation network, the proposed design methods are analyzed and verified. The experiment results show that the output current and voltage with the change of load are almost constant by using the proposed methods, and the process of changing from the CC mode to the CV mode is stable, which meet the charging requirement of electric vehicle. © 2017 Automation of Electric Power Systems Press.
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页码：137 / 142
页数：5
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