王赢聪
WANG Yingcong

• 1:国网浙江省电力有限公司金华供电公司

摘要(Abstract)：

DWPT(动态磁耦合无线电能传输技术)是解决电动汽车续航问题的有效手段。提出了基于接收线圈位置检测的相邻两发射线圈的激活策略,并由此建立其动态理论模型。根据推导的发射电流和接收电流的控制方程,对行车速度和电池充电状态带来的影响进行分析。结果表明,行车速度会改变包络电流的频率,而电池等效电阻会改变包络电流的幅值,通过适当降低发射线圈的本征频率可以有效提高各工况下的传输效率,为动态系统的优化设计提供理论依据。
DWPT(dynamic wireless power transfer) can boost the insufficient battery life of electric vehicles.This paper proposes an activation strategy for two adjacent transmitting coils based on position detection of the receiving coil and builds a dynamic theoretical model. The paper also analyzes the impact of driving speed and the charging state in accordance with the governing equations of transmitting current and receiving current. The result shows that driving speed can change the frequency of envelope current, while equivalent resistance of battery changes the amplitude of envelope current. By proper reduction of the intrinsic frequency of transmitting coils, transfer efficiency can be effectively improved, providing a theoretical basis for optimization and design of the dynamic system.

关键词(KeyWords)： 动态;无线电能传输;行车速度;电池充电;本征频率
dynamic;wireless power transfer;driving speed;battery charging;intrinsic frequency

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金（51477014）

作者(Author): 王赢聪
WANG Yingcong

DOI: 10.19585/j.zjdl.202101014

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