New Cross-Segmented Power Supply Rails for Roadway-Powered Electric Vehicles
New Cross-Segmented Power Supply Rails for Roadway-Powered Electric Vehicles
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DOI：
10.1109/tpel.2013.2247634
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发表时间：
2013-02
影响因子：
6.7
通讯作者：
Su Y. Choi;J. Huh;Wonji Lee;Seungwoo Lee;C. Rim
中科院分区：
文献类型：
--
作者：
Su Y. Choi;J. Huh;Wonji Lee;Seungwoo Lee;C. Rim
提出了一种新型的交叉分段供电轨道，用于公路供电的电动汽车，以降低建设成本和电动势。所提出的铁路由两对电力电缆，核心，双向电源开关，一个Transformer，电容器和线束。每根铁轨通过一个开关盒连接，开关盒可以改变一对电力电缆的电流方向。因此，将两对电力电缆的电流相加导致激活模式，而使其无效则导致静音模式。引入了一个带有两个电容的耦合Transformer来补偿由于电流方向的改变而引起的钢轨的可变线路电感。因此，可以通过使用逆变器选择性地接通和关断电源开关来同时激活多个轨。此外，如果使用双绞线电缆和铜线，静音模式的EMF会大幅降低，因此可以满足ICNIRP在20 kHz工作频率下的6.25 μT准则。提出的交叉分段电源轨进行了实验，并验证了实际应用。
New cross-segmented power supply rails for roadway-powered electric vehicles are proposed in this paper for reducing construction cost and EMF. The proposed rail consists of two pairs of power cables, core, bidirectional power switches, a transformer, capacitors, and harness. Each rail is connected through a switch box, which can change the current direction of a pair of power cables. Hence, adding the current of the two pairs of power cables results in the activation mode while nullifying it does the silence mode. A coupling transformer with two capacitors is introduced to compensate the variable line inductance of the rail due to the change of current direction. Therefore, multiple rails can be concurrently activated by selective turning-on and turning-off the power switches using an inverter. In addition, the EMF for the silence mode is drastically reduced if a twisted pair of power cables and copper nets is used, so that the ICNIRP guideline 6.25 μT at 20-kHz operating frequency can be met. The proposed cross-segmented power supply rail was implemented for experiments and verified for practical applications.