用于井下电磁能量收集的功率传输模型

刘晓明; 满忠诚; 赵端

doi:10.13272/j.issn.1671-251x.2016.05.013

用于井下电磁能量收集的功率传输模型

doi: 10.13272/j.issn.1671-251x.2016.05.013

刘晓明^{1, 2, 3, 4},
满忠诚¹,
赵端^{1, 2, 3, 4}

1.
中国矿业大学信息与电气工程学院，江苏徐州221008
2.
中国矿业大学物联网(感知矿山)研究中心，江苏徐州221008
3.
矿山互联网应用技术国家地方联合工程实验室，江苏徐州221008
4.
江苏省感知矿山物联网工程

基金项目:

中国矿业大学大学生创新训练计划项目（X1029015058）

详细信息

中图分类号: TD65
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出版历程
- 刊出日期: 2016-05-10

Power transfer model of electromagnetic energy harvesting used in mine tunnels

LIU Xiaoming^{1, 2, 3, 4},
MAN Zhongcheng¹,
ZHAO Duan^{1, 2, 3, 4}

1.
School of Information and Electrical Engineering, China University of Mining and Technology, Xuzhou 221008, China
2.
IoT Perception Mine Research Center, China University of Mining and Technology, X

摘要

摘要: 为了将电磁能量收集技术应用到煤矿井下，采用实验测量和统计分析的方法对电磁能量收集的功率传输特性进行了研究，建立了微波在巷道中路径损耗的一般表达式；提出了一种用于井下巷道的功率传输模型，有效解决矩形、拱形巷道内近距离电磁能量传输效率的计算问题。仿真和实验分析证明了该模型的正确性，同时表明，功率衰减受路径衰减指数的影响较大，提升发射功率不是提升充电效果的最佳选择，在实际应用中，为了获得最佳接收功率，应根据接收机所处位置合理选取天线极化方式。
- 电磁能量收集 /
- 功率传输模型 /
- 路径衰减
Abstract: In order to apply electromagnetic energy harvesting technology in mine tunnels, the power transfer characteristics of electromagnetic energy harvesting were studied using experimental measurement and statistical analysis method. The expression of microwave path loss in tunnel was established, thus the power transfer model of energy harvesting used in mine tunnels was deduced, which is able to calculate power transfer efficiency in both arched and rectangular tunnels in short distance. Simulation and experimental analysis shows correctness of the model, and shows that the power attenuation is affected by the path loss exponent, and improving transmitted power continually is not the optimal choice to promote the charging efficiency, in practical application, different locations should adopt reasonable antenna polarizations to gain the maximal power.
- electromagnetic energy harvesting /
- power transfer model /
- path loss