Modern Trends in Inductive Power Transfer for Transportation Applications
Modern Trends in Inductive Power Transfer for Transportation Applications
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DOI：
10.1109/jestpe.2013.2264473
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发表时间：
2013-03-01
影响因子：
5.5
通讯作者：
Boys, John Talbot
中科院分区：
文献类型：
--
作者：
Covic, Grant Anthony;Boys, John Talbot
感应电能传输（IPT）已发展成为一种配电系统，在现代自动化系统中，尤其是在严苛环境下，具有显著优势。在此，同样的技术既可以应用于非常恶劣的环境，也能用于洁净室制造。本文回顾了简单工厂自动化（FA）IPT系统的发展，涵盖当今复杂应用以及更具挑战性的应用——IPT车道。所有IPT技术的基础是两个强耦合线圈，它们在共振状态下高效传输电能。随着时间推移，气隙、效率、耦合系数和电能传输能力都有了显著提升。新的磁性理念被引入以允许一定程度的错位，使IPT系统从高架单轨转移到地面应用。然而，IPT车道的需求带来了巨大挑战。与最佳的工厂自动化实践相比，此处气隙需要增大100倍，功率水平要提高十倍以上，系统损耗需降低至十分之一以满足效率要求，并且不同制造商的系统必须在全运行范围内实现互操作。本文阐述了如何应对IPT车道面临的挑战，概述了仍然存在的问题以及设计者正在寻找的解决方案。
Inductive power transfer (IPT) has progressed to be a power distribution system offering significant benefits in modern automation systems and particularly so in stringent environments. Here, the same technology may be used in very dirty environments and in a clean room manufacture. This paper reviews the development of simple factory automation (FA) IPT systems for both today's complex applications and onward to a much more challenging application-IPT roadway. The underpinning of all IPT technology is two strongly coupled coils operating at resonance to transfer power efficiently. Over time the air-gap, efficiency, coupling factor, and power transfer capability have significantly improved. New magnetic concepts are introduced to allow misalignment, enabling IPT systems to migrate from overhead monorails to the floor. However, the demands of IPT roadway bring about significant challenges. Here, compared with the best FA practice, air-gaps need to be 100 times larger, power levels greater than ten times, system losses ten times lower to meet efficiency requirements, and systems from different manufacturers must be interoperable over the full range of operation. This paper describes how roadway challenges are being met and outlines the problems that still exist and the solutions designers are finding to them.