The invention provides a dynamic wireless charging system with multiple transmitting coils connected in parallel, the system comprises a main power circuit and an auxiliary circuit used for detecting the position of an electric vehicle, the main power circuit comprises a Buck-Boost converter, a full-bridge inverter and a plurality of daisy chain type transformers which are connected in sequence, each daisy chain type transformer is connected with a main power circuit transmitting coil, each main power circuit transmitting coil is provided with a compensation capacitor and a follow current loop, and the auxiliary circuit for detecting the position of the electric vehicle sends a control signal to control the on-off of the corresponding follow current loop after detecting the position of the electric vehicle. According to the system, a multi-transmitting-coil parallel connection type framework is adopted, the laying number of inverters in a road is reduced, the infrastructure input cost is reduced, the working state of the main power transmitting coil below the electric vehicle can be switched in time by detecting the position of the electric vehicle, and electromagnetic radiation and energy loss at the road surface end are reduced.
本发明提供一种多发射线圈并联的动态无线充电系统,该系统包括主功率电路和用于电动汽车位置检测的辅助电路,所述主功率电路包括依次连接的Buck‑Boost变换器、全桥逆变器和多个菊花链式变压器,每个菊花链式变压器均连接一个主功率电路发射线圈,每个主功率电路发射线圈配设一个补偿电容和一个续流回路,所述用于电动汽车位置检测的辅助电路检测电动汽车位置后发送控制信号控制对应续流回路的通断。本系统采用多发射线圈并联型的架构,减少了道路中逆变器的铺设数量,降低了基础设施投入成本,通过检测电动汽车的位置,能适时地对电动汽车下方的主功率发射线圈工作状态进行切换,减小了路面端的电磁辐射和能量损耗。
Dynamic wireless charging system with multiple transmitting coils connected in parallel
一种多发射线圈并联的动态无线充电系统
2022-12-23
Patent
Electronic Resource
Chinese
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