Dynamic wireless power transfer system for electric vehicles to simplify ground facilities - power control and efficiency maximization on the secondary side
Dynamic wireless power transfer system for electric vehicles to simplify ground facilities - power control and efficiency maximization on the secondary side
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DOI：
10.1109/apec.2016.7468101
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发表时间：
2016-03
期刊：
影响因子：
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通讯作者：
Katsuhiro Hata;T. Imura;Y. Hori
中科院分区：
文献类型：
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作者：
Katsuhiro Hata;T. Imura;Y. Hori
用于电动汽车的动态无线电力传输（WPT）系统可以延长其续航距离并减小其能量存储系统的尺寸。 WPT的功率控制和效率最大化优选在次级侧进行控制，因为必须简化动态充电系统的地面设施。尽管之前的研究提出了最大效率和所需功率的次级侧同步控制，但电池充电电流无法直接控制。本文提出了一种用于功率控制和效率最大化的新型次级侧控制方法。电池充电功率由DC-DC转换器控制，并通过半有源整流器最大化传输效率。这些控制策略和控制器设计是基于WPT电路分析和功率转换器模型提出的。通过仿真和实验验证了该方法的有效性。
A dynamic wireless power transfer (WPT) system for electric vehicles can extend their cruising distance and reduce the size of their energy storage system. Power control and efficiency maximization of WPT are preferable to be controlled on the secondary side because ground facilities of the dynamic charging system have to be simplified. Although previous research has proposed a secondary-side simultaneous control of the maximum efficiency and the desired power, the battery charging current cannot be controlled directly. In this paper, a novel secondary-side control method for power control and efficiency maximization is proposed. The battery charging power is controlled by the DC-DC converter and the transmitting efficiency is maximized by Half Active Rectifier. These control strategies and the controller design are proposed based on the WPT circuit analysis and the power converter model. The effectiveness of the proposed method is verified by simulation and experiment.