Ultraslim S-Type Power Supply Rails for Roadway-Powered Electric Vehicles Generalized Models on Self-Decoupled Dual Pick-Up Coils for a Large Lateral Tolerance
Ultraslim S-Type Power Supply Rails for Roadway-Powered Electric Vehicles Generalized Models on Self-Decoupled Dual Pick-Up Coils for a Large Lateral Tolerance
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DOI：
10.1109/tpel.2015.2444894
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发表时间：
2015-11-01
影响因子：
6.7
通讯作者：
Rim, Chun T.
中科院分区：
文献类型：
--
作者：
Choi, Su Y.;Jeong, Seog Y.;Rim, Chun T.
提出了一种用于公路供电电动汽车（RPEVs）的超窄S型供电轨，其宽度仅为4cm。芯的横截面具有薄的S形，并且垂直缠绕的多匝线圈在芯内移位。通过这种方式，设计了最薄的电源轨，这对于RPEV的商业化至关重要。道路基础设施的建设占RPEV总部署成本的80%以上，当供电轨道的宽度如此之小时，道路基础设施的建设可以变得更加容易。为了增加便携性并最小化构造时间，还提出了一种可折叠电源模块，其中柔性电力电缆连接每个可折叠电源模块，使得在部署期间不需要连接器。提出了一种有效的缠绕方法，以最大限度地减少电缆的长度，和建议的电源轨的最佳芯厚度是通过有限元模拟确定的，并验证了原型电源模块。由于超细长的形状，在20 cm的气隙下实验获得了30 cm的大横向位移，这比I型电源轨的横向位移大6 cm。除了较大的横向位移外，据估计，S型的电动势比I型的电动势低，这是因为S型的宽度比I型的宽度窄。不包括逆变器的最大效率为91%，拾取功率为22 kW。
An ultraslim S-type power supply rail, which has a width of only 4 cm, for roadway-powered electric vehicles (RPEVs) is proposed in this paper. The cross section of the core has a thin S-shape, and a vertically-wound multiturn coil is displaced inside the core. In this way, the most slim power supply rail is designed, which is crucial for the commercialization of RPEVs. The construction of roadway infrastructure, which is responsible for more than 80% of the total deployment cost for RPEVs, can be much easier when the width of the power supply rail is so small. To increase portability and to minimize construction time, a foldable power supply module is also proposed in which flexible power cables connect each foldable power supply module such that no connectors are needed during deployment. An effective winding method for minimizing the cable length is proposed, and an optimum core thickness of the proposed power supply rail is determined by FEA simulations and verified by a prototype power supply module. By virtue of the ultraslim shape, a large lateral displacement of 30 cm at an air gap of 20 cm was experimentally obtained, which is 6 cm larger than that of the I-type power supply rail. In addition to the larger lateral displacement, it is estimated that the S-type one has lower EMF than the I-type one because the width of the S-type one is narrower than that of I-type one. The maximum efficiency, excluding the inverter, was 91%, and the pick-up power was 22 kW.