摘要
为解决单向单线电能传输系统的电磁安全性问题,首先搭建了单向单线电能传输系统和含有重要器官的人体模型;其次根据国内电磁场限值标准仿真研究了系统周围电磁场强度的限值范围,并探究了系统不同位置处的电磁场对体内重要器官的电场强度、磁场强度、电流密度和比吸收率(SAR值)最大值的影响程度;最后通过三维电磁场测量装置探测了单向单线电能传输实验系统周围的电磁场分布,得出了系统的限值距离,并与仿真限值距离进行了对比分析。结果表明:发射端和接收端的电磁场强度高于单导线周围的电磁场强度,右肾在发射端、接收端、单线处的的磁场强度分别为0.86、0.81和0.18 A/m;发射端和接收端对体内重要器官的影响程度明显大于单导线。实验与仿真所得的电磁场强度限值距离具有良好的一致性,证明了系统电磁安全性研究的正确性。
To solve the problem of electromagnetic safety of one-way single-wire power transfer system,firstly,a one-way single-wire power transfer system and a human body model with critical organs were built.Secondly,the limit range of electromagnetic field strength around the system was studied according to the domestic electromagnetic field limit standard simulation,and the degree of influence of electromagnetic field at different locations of the system on the maximum value of electric field strength,magnetic field strength,current density and specific absorption ratio(SAR)of vital organs in the body was investigated.Finally,the electromagnetic field distribution around the one-way single-wire power transfer experimental system was detected by a three-dimensional electromagnetic field measurement device,and the limit distance of the system was derived and compared with the simulated limit distance for analysis.The results show that the electromagnetic field strength at the transmitter and receiver are higher than the electromagnetic field strength around the single conductor.The electromagnetic field intensity of the right kidney on the transmitter,receiver and single conductor are 0.86,0.81,and 0.18 A/m,respectively,and the degree of influence of the transmitter and receiver on the vital organs in the body are obviously higher than that of the single conductor.The electromagnetic field strength limit distances obtained from the experiments and simulations has excellent agreement,which proves the correctness of the system electromagnetic safety of the study.
作者
李阳
胡涛成
翟宇洁
汪学亮
黄文鑫
娄志刚
LI Yang;HU Taocheng;ZHAI Yujie;WANG Xueliang;HUANG Wenxin;LOU Zhigang(School of Electrical Engineering,Tiangong University,Tianjin 300387,China;Tianjin Key Laboratory of New Energy Power Conversion,Transmission and Intelligent Control,Tianjin University of Technology,Tianjin 300384,China)
出处
《天津工业大学学报》
CAS
北大核心
2024年第5期66-74,共9页
Journal of Tiangong University
基金
国家自然科学基金面上项目(51877151)
天津市应用基础及前沿技术研究计划(自然科学基金)面上项目(23JCYBJC00400)。
关键词
单向单线电能传输
电磁安全
限值距离
one-way single-wire power transfer
electromagnetic safety
limit distance
作者简介
通信作者:李阳(1979-),男,博士,教授,主要研究方向为无线电能传输理论与应用。E-mail:liyang@tiangong.edu.cn。
