磁谐振式无线电能传输特性及其空间电磁场对人体的影响研究

项目名称： 磁谐振式无线电能传输特性及其空间电磁场对人体的影响研究

项目编号： No.51477014

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 汪泉弟

作者单位： 重庆大学

项目金额： 84万元

中文摘要： 自2007年以来，磁谐振WPT技术成为该领域新的研究热点，但这种新型WPT技术的传输机理与特性尚不明确、多元化系统的建模方法有待提高、是否对人体产生影响的问题未能解决。针对近场感应区的复杂性，课题组将结合多种理论和方法开展研究工作。研究感应区发生磁谐振时的电磁现象，获得揭示感应区电磁过程的理论和方法，掌握空间电磁场量的分布与变化规律和电磁能量流动特性；研究多个（单一）接收线圈与单一（多个）发射线圈之间的距离和方位的关系，多个接收线圈或多个发射线圈在感应区中的最佳分布位置，建立以工程应用为目标的多元化磁谐振WPT系统的数学模型，通过该数学模型获得提高复杂系统空间电能传输效率的方法；建立三维电磁仿真人体模型、电磁-热耦合仿真人体模型，研究电动汽车无线充电时人体中的电磁场分布、电流密度分布、SAR及人体温升，依据ICNIRP导则评价磁谐振WPT技术的安全性。研究结果的正确性将通过实验进行验证。

中文关键词： 磁谐振无线电能传输；能量传输特性；电磁场分布；生物效应；传输效率

英文摘要： Since 2007, magnetic resonance wireless power transmission become a research focus in this field, but this kind of wireless power transmission have many issues need to be addressed, which include the mechanism and the characteristics of this new technology has not be clarified, the diversified system modeling approaches has not be perfected, the impact on the human body has not be solved and so on. For the complicated near-induction-electromagnetic field, our research team will carry out the research work by combining a variety of theories and methods. Firstly, we will research the electromagnetic characteristics when the system occur magnetic resonance around the near-induction-field, and obtain the theories and methods to reveal the process of the electromagnetic field in the near-induction-field, and obtain the rules of the electromagnetic field distribution, spatial variation, and the characteristics of electromagnetic energy flow. Secondly, we will study the relationship of the distance and the orientation between the a number of ( or a single ) lunch or receive coils, and the optimal distribution position of the multi launch or receiver coils, then establish a diversified mathematical model of the resonance WPT system, and which model aim at the practical application. By that model, we try to find a new way to improve the efficiency of power transfer. Thirdly, we will create a three-dimensional electromagnetic simulative mannequin and an electromagnetic-thermal coupling simulative human model to study the electromagnetic field distribution, the current density distribution, SAR and body temperature in the human body when the electric vehicle wireless charging which use magnetic resonance wireless power transmission technology. Then we will consult the ICNIRP guidelines to evaluate the safety of magnetic resonance WPT technology. The correctness of the results will be verified by experiment.

英文关键词： magnetic resonant wireless power transfer;Energy transfer characteristics;Electromagnetic field distribution;Biological effects;Transmission efficiency