无线电力传输中的超材料综述

A Review of Metamaterials in Wireless Power Transfer.

作者信息

Rong Cancan, Yan Lihui, Li Long, Li Yunhui, Liu Minghai

机构信息

Jiangsu Province Laboratory of Mining Electric and Automation, China University of Mining and Technology, Xuzhou 221008, China.

Key Laboratory of High-Speed Circuit Design and EMC of Ministry of Education, School of Electronic Engineering, Xidian University, Xi'an 710071, China.

出版信息

Materials (Basel). 2023 Aug 31;16(17):6008. doi: 10.3390/ma16176008.

DOI:10.3390/ma16176008

PMID:37687701

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10488467/

Abstract

Wireless power transfer (WPT) is a technology that enables energy transmission without physical contact, utilizing magnetic and electric fields as soft media. While WPT has numerous applications, the increasing power transfer distance often results in a decrease in transmission efficiency, as well as the urgent need for addressing safety concerns. Metamaterials offer a promising way for improving efficiency and reducing the flux density in WPT systems. This paper provides an overview of the current status and technical challenges of metamaterial-based WPT systems. The basic principles of magnetic coupling resonant wireless power transfer (MCR-WPT) are presented, followed by a detailed description of the metamaterial design theory and its application in WPT. The paper then reviews the metamaterial-based wireless energy transmission system from three perspectives: transmission efficiency, misalignment tolerance, and electromagnetic shielding. Finally, the paper summarizes the development trends and technical challenges of metamaterial-based WPT systems.

摘要

无线电力传输（WPT）是一种能够在无物理接触的情况下实现能量传输的技术，它利用磁场和电场作为软介质。虽然WPT有众多应用，但随着电力传输距离的增加，传输效率往往会降低，同时迫切需要解决安全问题。超材料为提高WPT系统的效率和降低磁通密度提供了一种很有前景的方法。本文概述了基于超材料的WPT系统的现状和技术挑战。介绍了磁耦合谐振无线电力传输（MCR-WPT）的基本原理，随后详细描述了超材料设计理论及其在WPT中的应用。然后，本文从传输效率、失准容忍度和电磁屏蔽三个角度对基于超材料的无线能量传输系统进行了综述。最后，本文总结了基于超材料的WPT系统的发展趋势和技术挑战。