近场谐振与感应耦合协同式无线电能传输的几个关键问题研究

项目名称： 近场谐振与感应耦合协同式无线电能传输的几个关键问题研究

项目编号： No.51307120

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 电工技术

项目作者： 张献

作者单位： 天津工业大学

项目金额： 27万元

中文摘要： 无线电能传输技术特别适于不宜拖带电线的用电场合。给运动中的电动汽车直接进行无线供电具有十分诱人的应用前景。近场谐振与感应耦合协同工作是目前解决大功率无线供电问题的最佳方式。而在这种移动式大功率协同无线电能传输方法中，协同工作方式、磁屏蔽、远距离及大功率供电等均为需要解决的关键基础问题。本课题研究近场谐振与感应耦合的"紧-强"协同工作模式，建立协同工作模型，充分发挥近场谐振传输距离较远、感应耦合传输功率大的优势，实现较远距离(1米)和较大功率(20kW)的无线传输；分析传输与接收系统之外的物体对无线电能传输的扰动机理及损耗影响，通过非对称电磁耦合结构的研究解决接收端移动无线供电问题；为了将传输能量约束在有效区域，提出研究解决磁屏蔽问题的新方法。本课题的研究成果将给运动中的电动汽车直接进行无线供电奠定理论基础。因此，本课题研究具有重要的理论意义和实用价值。

中文关键词： 无线电能传输；协同工作模式；紧强耦合；金属障碍物；动态无线充电

英文摘要： It is more convenient for power transmission by use of wireless transmission technology in the situations which are not suitable for towing wires. There is a very attractive prospect for supplying power directly and wirelessly to movable electric vehicles. At present, it is the best way to solve the high-capacity wireless charging problem by use of cooperative operating mode of near-field resonance and inductively coupling. In this movable high-power cooperative wireless power transmission method, cooperative operating mode, magnetic shielding, long-distance and high-capacity power supply are the key foundation issues that need to be resolved. In this project, a novel cooperative operating mode of the two technologies is intensively studied under a kind of "tightly and strongly" coupling state. It is to put forward a novel model of cooperative operating mode and give full play the advantages of long-distance of near-field resonance and high-capacity of inductively coupling, that stable 20kW power is provided to the moving load within one meter spacing distance. The disturbance mechanism and loss influence of objects outside system is analyzed and movable wireless charging problem is by asymmetric electromagnetic coupling structure. In order to constraint energy supply in a limited area, a novel method with magne

英文关键词： wireless power transmission；cooperative operating mode；tigh-strong coupling；metal obstacles；dynamic wireless charging