动态无线充电电动汽车研究现状与核心技术(3)
来源：电力系统自动化 作者：朱春波;姜金海;宋凯;
发布于：2017-02-20 共10048字
3电动汽车动态无线充电技术亟待解决的关键问题
1）高性能耦合机构设计问题
与单极性长线圈型导轨相比，双极供电导轨具有功率密度高、尺寸紧凑、侧移适应性强、对轨道两侧磁场暴露水平低等特点，且地面施工难度小、磁极磁芯用量少、施工成本低，适合大规模工程应用，但是双极性导轨磁场分布不均匀，存在耦合零点问题，造成能量传输不连续，不仅影响系统稳定性，还会降低能量传输功率与效率，还需要对其结构进行进一步优化设计，提升动态无线供电平均传输效率与平均传输功率。
2）能量传输鲁棒控制问题
双极型供电导轨动态无线供电系统中，由于耦合机构相对位置变化、分段导轨间磁场的不均匀分布、路基介质不同等多参数扰动的影响，能量传输处于快速非线性变化过程，如何提高系统稳定性，提升系统响应速度成为动态无线能量传输系统控制策略的研究目标。
3）电磁兼容问题
电磁兼容问题与能量传输的质量、对系统造成的电磁干扰、对人体造成的影响等方面息息相关，只有有效地解决电磁兼容问题才能保证系统安全、可靠、稳定的运行。可见，如何在最小限度影响系统效率的情况下，高效、可靠地保证系统的电磁兼容性成为研究的主要内容。
4结语
本文对国内外学者及研究机构对动态无线充电技术的研究进展做了简要介绍，重点介绍了动态无线充电技术所面临的瓶颈问题以及解决方案，可以看出，国内外针对电动汽车动态无线充电技术的研究还处于不断发展和完善阶段，虽然取得一定的理论研究和实验成果，但是此项技术的工程化、商业化还有很多问题需要解决。
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原文出处：朱春波,姜金海,宋凯,张千帆. 电动汽车动态无线充电关键技术研究进展[J]. 电力系统自动化,2017,02:60-65+72.
