用于小型电动汽车的电容式无线充电器的计算机和物理模拟

V.B. Pavlov, O. D. Podoltsev, V. Pavlenko
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引用次数: 0

摘要

这项工作考虑了创建电容式无线充电器的可能方法之一,该充电器可对小型车辆(电动车、电动滑板车、电动代步车)的电池进行非接触式充电。这种设备的开发基础是混合直流-直流转换器电路的运行,它以高频率(550 千赫)运行,利用两个电容元件将能量转移到充电电路,并允许接收负载上的恒定调节电压,该电压可以是较低或较高的输入直流电压。这种设备的原型已经开发出来,并给出了实验研究结果,证实了使用这种方案为电池无线充电的可能性。我们还开发了这种设备的 Simulink 计算机模型,该模型考虑了所开发原型的所有参数的实际值,并使用了锂离子电池的基本模型。根据计算结果可以确定,对于所开发的电容式设备(最大损耗发生在电感线圈中),在其充电初始阶段(当电池 SOC 状态参数 =50% 时),效率值(表征将电能从主电源传输至电池过程的效率)为 80%。参考文献 10,图 5。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
COMPUTER AND PHYSICAL SIMULATION OF CAPACITIVE TYPE WIRELESS CHARGER FOR SMALL ELECTRIC VEHICLE
The work considers one of the possible approaches to the creation of a capacitive type wireless charger, which allows for non-contact charging of batteries of small-sized vehicles: electric carts, electric scooters, electric scooters. The basis of the development of such a device is the operation of the hybrid DC-DC converter circuit, which operates at a high frequency (550 kHz), transfers energy to the charging circuit using two capacitive elements and allows receiving a constant regulated voltage on the load, which can be either lower or and more input DC voltage. A prototype of such a device has been developed and the results of its experimental research are given, which confirm the possibility of using this scheme for wireless charging of the battery. A Simulink computer model of such a device has been developed, which takes into account the real values of all parameters of the developed prototype and uses the basic model of a lithium-ion battery. According to the results of the calculations, it was determined that for the developed device of the capacitive type, and the largest losses occur in the inductor coils, the value of efficiency, which characterizes the efficiency of the process of transferring electrical energy from the primary power source to the battery, at the initial stage of its charging (when the parameter of the state of the battery SOC =50%) is 80%. References 10, figures 5.
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