基于半桥式发送器的车载无线充电研究

Research on Vehicle Wireless Charging Based on Half Bridge Transmitter

无线充电技术可以为电动汽车提供非接触式的充电方式,更加安全、方便.无线充电器包含发射部分和接收部分两个部分,发射部分使用一个高频逆变器来获得高频电压和电流,接受部分使用整流器将接收到的交流电转换成直流电.本文研究了一种使用半桥式逆变器作为反射部分高频逆变器的车载无线充电器,可以应用于小功率的无线充电场合.首先给出了无线充电器的拓扑结构,然后简要分析了其工作原理.之后使用PSIM软件对无线充电器进行了仿真研究.最后为了验证其可行性,建立了一个实验样机,并进行了实验研究.仿真和实验结果表明该种无线充电器具有一定的可行性.

Wireless charging technology can provide a non-contact charging method for electric vehicles,which is safer and more convenient.The wireless charger includes a transmitting portion and a receiving portion.The transmitting portion uses a high frequency inverter to obtain a high frequency voltage and current,and the receiving portion converts the received AC power into a DC power using a rectifier.In this paper,we study fl car wireless charger that uses a half-bridge inverter as the high-frequency inverter of the receiving portion,which can be applied to low-power wireless charging applications.Firstly,the topology of the wireless charger is given,and then its working principle is briefly analyzed.The wireless charger was then simulated using PSIM software.Finally。in order to verify its feasibility,an experimental prototype was established and an experimental study was carried out.Simulation and experimental results show that this kind of wireless charger has certain feasibility.