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Analysis of resonant coupling coil configurations of EV wireless charging system: a simulation study

机译:电动汽车无线充电系统的谐振耦合线圈配置分析:仿真研究

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Nowadays, internal combustion engine vehicles are considered as one of the major contributors to air pollution. To make transportation more environmentally friendly, plug-in electric vehicles (PEVs) have been proposed. However, with an increase in the number of PEVs, the drawbacks associated with the cost and size, as well as charging cables of batteries have arisen. To address these challenges, a novel technology named wireless charging system has been recently recommended. This technology rapidly evolves and becomes very attractive for charging operations of electric vehicles. Currently, wireless charging systems offer highly efficient power transfer over the distances ranging from several millimeters to several hundred millimeters. This paper is focused on analyzing electromagnetically coupled resonant wireless technique used for the charging of EVs. The resonant wireless charging system for EVs is modeled, simulated, and then examined by changing different key parameters to evaluate how transfer distance, load, and coil's geometry, precisely number of coil's turns, coil's shape, and inter-turn distance, influence the efficiency of the charging process. The simulation results are analyzed and critical dimensions are discussed. It is revealed that a proper choice of the dimensions, inter-turn distance, and transfer distance between the coils can result in a significant improvement in charging efficiency. Furthermore, the influence of the transfer distance, frequency, load, as well as the number of the rums of the coil on the performance of wireless charging system is the main focus of this paper.
机译:如今,内燃机汽车被认为是造成空气污染的主要因素之一。为了使运输更加环境友好,已经提出了插入式电动车辆(PEV)。然而,随着PEV数量的增加,出现了与成本和尺寸相关的缺点以及电池的充电电缆。为了解决这些挑战,最近已经推荐了一种称为无线充电系统的新颖技术。这项技术发展迅速,对电动汽车的充电操作非常有吸引力。当前,无线充电系统可在几毫米到几百毫米的距离范围内提供高效的功率传输。本文着重分析用于电动汽车充电的电磁耦合共振无线技术。对电动汽车的谐振无线充电系统进行建模,仿真,然后通过更改不同的关键参数进行检查,以评估传输距离,负载和线圈的几何形状,精确的线圈匝数,线圈形状和匝间距离如何影响效率充电过程。分析了仿真结果并讨论了关键尺寸。揭示了适当选择尺寸,匝间距离和线圈之间的传递距离可以导致充电效率的显着提高。此外,传输距离,频率,负载以及线圈的朗姆数对无线充电系统性能的影响也是本文的重点。

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