Analysis of transmission efficiency of the superconducting resonance coil according the materials of cooling system

IF 0.2 Q4 PHYSICS, APPLIED

Progress in Superconductivity and Cryogenics Pub Date : 2016-03-31 DOI:10.9714/PSAC.2016.18.1.046

Yu-kyeong Lee, Junwon Hwang, Hyosang Choi

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引用次数: 0

Abstract

The wireless power transfer (WPT) system using a magnetic resonance was based on magnetic resonance coupling of the transmission and the receiver coils. In these system, it is important to maintain a high quality-factor (Q-factor) to increase the transmission efficiency of WPT system. Our research team used a superconducting coil to increase the Q-factor of the magnetic resonance coil in WPT system. When the superconductor is applied in these system, we confirmed that transmission efficiency of WPT system was higher than normal conductor coil through a preceding study. The efficiency of the transmission and the receiver coil is affected by the magnetic shielding effect of materials around the coils. The magnetic shielding effect is dependent on the type, thickness, frequency, distance, shape of materials. Therefore, it is necessary to study the WPT system on the basis of these conditions. In this paper, the magnetic shield properties of the cooling system were analyzed using the High-Frequency Structure Simulation (HFSS, Ansys) program. We have used the shielding materials such as plastic, aluminum and iron, etc. As a result, when we applied the fiber reinforced polymer (FRP), the transmission efficiency of WPT was not affected because electromagnetic waves went through the FRP. On the other hand, in case of a iron and aluminum, transmission efficiency was decreased because of their electromagnetic shielding effect. Based on these results, the research to improve the transmission efficiency and reliability of WPT system is continuously necessary.

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根据冷却系统材料对超导共振线圈的传输效率进行了分析

基于磁共振的无线电力传输(WPT)系统是基于发射线圈和接收线圈的磁共振耦合。在这些系统中，保持高质量因子(q因子)是提高WPT系统传输效率的重要因素。本课题组采用超导线圈来提高WPT系统中磁共振线圈的q系数。当超导体应用于这些系统时，我们通过之前的研究证实了WPT系统的传输效率高于普通导体线圈。发射线圈和接收线圈的效率受到线圈周围材料的磁屏蔽效应的影响。磁屏蔽效果取决于材料的种类、厚度、频率、距离、形状等。因此，有必要在这些条件的基础上对WPT系统进行研究。本文利用Ansys高频结构仿真软件(HFSS)对冷却系统的磁屏蔽特性进行了分析。我们采用了塑料、铝、铁等屏蔽材料。因此，当我们使用纤维增强聚合物(FRP)时，由于电磁波穿过FRP而不影响WPT的传输效率。另一方面，在铁和铝的情况下，由于它们的电磁屏蔽作用，传输效率降低。基于这些结果，提高WPT系统的传输效率和可靠性的研究仍是必要的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Progress in Superconductivity and Cryogenics PHYSICS, APPLIED-

CiteScore

0.40

自引率

33.30%

发文量

期刊介绍： Progress in Superconductivity and Cryogenics is the official publication of The Korea Institute of Applied Superconductivity and Cryogenics and the Korean Superconductivity Society. It was launched in 1999, and accepts original research articles and review papers on research on superconductivity and related fields of physics, electronic devices, materials science, large-scale applications for magnets, power and energy, and cryogenics. The Journal is published quarterly in March, June, September, and December each year. Supplemental issues are published occasionally. The official title of the journal is ''Progress in Superconductivity and Cryogenics'' and the abbreviated title is ''Prog. Supercond. Cryog.'' All submitted manuscripts are peer-reviewed by two reviewers. The text must be written in English. All the articles in this journal are KCI and SCOPUS as of 2015. The URL address of the journal is http://psac.kisac.org where full text is available. This work was supported by the Korean Federation of Science and Technology Societies grant funded by the Korea government.