感应式无线电能传输系统抗偏移技术研究综述

Review of Anti-misalignment Technology in Inductive Wireless Power Transfer System

无线电能传输(wireless power transfer,WPT)的应用初衷是为了让供电更加灵活方便,倘若系统的抗偏移性能不足,则难以满足实际应用的需求,因此抗偏移技术一直都是WPT系统研究的热点。文章综述国内外感应式WPT系统抗偏移技术的研究现状。首先,概述标准中关于偏移的定义和要求,介绍研究抗偏移技术的主要团队;其次,分析线圈偏移对系统输出性能的影响规律,并列出不同类抗偏移的技术手段;接着,重点介绍不同种类抗偏移技术的基本原理和主要研究成果,并指出不足之处;最后,论述抗偏移技术的未来研究方向。

The original intention of the application of wireless power transfer is to make the power supply more flexible and convenient.If the anti-misalignment performance of the system is insufficient,it is difficult to satisfy the requirements of practical applications.Therefore,improving the misalignment tolerance has always been a hot spot in WPT system research.This paper reviews the current research status of anti-misalignment technology in inductive WPT systems at home and abroad.First,the definition and requirements of misalignment in the standards are outlined,and the main teams researching anti-misalignment technology are introduced.Secondly,the influence of coil misalignment on system output performance is analyzed and followed by the ways to improve misalignment tolerance.Then,the basic principles and main research results of different anti-offset technologies are introduced,and corresponding shortcomings are revealed.Finally,the future research directions of the anti-misalignment technology are discussed.