Impact of Coil Misalignment in Data Transmission over the Inductive Link of an EV Wireless Charger
Impact of Coil Misalignment in Data Transmission over the Inductive Link of an EV Wireless Charger
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DOI：
10.3390/en11030538
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发表时间：
2018-03-01
期刊：
影响因子：
3.2
通讯作者：
Aguado, Jose A.
中科院分区：
文献类型：
--
作者：
Trivino-Cabrera, Alicia;Lin, Zhengyu;Aguado, Jose A.
未来电动汽车的普及率将会有相对的提高，因此需要方便的充电方式。从这个意义上说，无线充电代表了一种安全的充电方法，最大限度地减少了用户的干预。与导电充电类似，出于安全和操作原因，无线充电需要在充电器一次侧和二次侧(电池)之间进行一些信息交换。因此，无线充电器依赖于通信系统来控制和正确运行。本文分析了一种无线电动汽车充电器的通信性能，其中通信设备是无线电能传输系统的一部分。特别是，这项工作研究了通信系统对电源线圈位移的反应，这些位移在通信系统的常规性能中经常出现。结果表明，为保证谐振运行而选择的补偿拓扑结构对通信性能有明显的影响。特别是，理论模型和仿真结果表明，非对称补偿拓扑在无线通信信道容量方面更加稳定。
The penetration rate of electric vehicles (EVs) will experience a relative increment in the future, so easy to use ways to recharge will be demanded. In this sense, wireless charging represents a safe charging method that minimises user intervention. In a similar way to conductive charge, wireless charging requires some information exchange between the charger primary side and secondary side (battery) for safety and operational reasons. Thus, wireless chargers depend on a communication system for their controlled and correct operation. This paper analysed the communication performance of a wireless EV charger in which the communiction device is part of the wireless power transfer system. Particularly, this work studies how the communication system reacts to power coil displacements, which commonly occur in their conventional performance. The results show that the compensation topology selected to ensure the resonant operation clearly impacts on the communication performance. In particular, the theoretical model and the simulation results demonstrate that the asymmetrical compensation topologies are more stable in terms of the wireless communication channel capacity.