电动汽车电磁耦合谐振无线电能传输系统性能分析

Performance Analysis of Electromagnetic Coupled Resonant Radio Energy Transmissior System for Electric Vehicles

电磁耦合谐振无线电能传输是一种新型的无线供电技术,具有效率高、距离远的特点。设计了一种电动汽车电磁耦合谐振无线充电系统,并开展性能实验分析。一对一线圈传输实验表明增大线圈直径与共振频率后有助于获得更大发射功率,达到更大的发射距离。多方向电能接收实验表明优化后线圈可以使接收端从不同方向接收能量,通过三维线圈为电动汽车传感器提供所需电能。该研究有助于提高电动汽车长距离许航能力,进而提高行驶效率。

Electromagnetic coupled resonant radio energy transmission is a new type of wireless power supply technology,which has the characteristics of high efficiency and long distance.An electromagnetic coupling resonant wireless charging system for electric vehicles is designed and its performance is analyzed experimentally.One to one coil transmission experiment shows that increasing the coil diameter and resonance frequency is helpful to obtain more transmiting power and reach a larger transmitting distance.The multi-direction electric energy receiving experiment shows that the optimized coil can make the receiving end receive energy from different directions,and provide the required electric energy for the electric vehicle sensor through the three-dimensional coil.The research is helpful to improve the long-distance endurance of electric vehicles and thus improve the driving efficiency.