华南理工大学学报（自然科学版） ›› 2015, Vol. 43 ›› Issue (4): 119-125.doi: 10.3969/j.issn.1000-565X.2015.04.017

• 动力与电气工程 • 上一篇    下一篇

交流输电线路杆塔侧的电势能采集可行性研究

赵东生1 戴栋1† 邓红雷1 李立浧1 翟少磊2 曹敏2   

  1. 1． 华南理工大学 电力学院，广东 广州 510640;2． 云南电力试验研究院(集团)有限公司 电力研究院，云南 昆明 650217
  • 收稿日期:2014-10-28 修回日期:2014-12-09 出版日期:2015-04-25 发布日期:2015-03-03
  • 通信作者: 戴栋(1976-)，男，教授，博士生导师，主要从事输电线路在线监测技术、非线性理论研究． E-mail:ddai@scut.edu.cn
  • 作者简介:赵东生(1980-)，男，博士生，主要从事输电线路在线监测技术研究． E-mail: zds_gz@126． com
  • 基金资助:

    国家“863”计划项目(2011AA05A120)

Feasibility Study on Energy Harvesting Around AC Transmission Line Based on Electric Potential

Zhao Dong-sheng1 Dai Dong1 Deng Hong-lei1 Li Li-cheng1 Zhai Shao-lei2 Cao Min2   

  1. 1． School of Electric Power，South China University of Technology，Guangzhou 510640，Guangdong，China;2． Electric Power Ｒesearch Institute，Yunnan Electric Power Test ＆ Ｒesearch Institute Group Co． ，Ltd． ，Kunming 650217，Yunnan，China
  • Received:2014-10-28 Revised:2014-12-09 Online:2015-04-25 Published:2015-03-03
  • Contact: 戴栋(1976-)，男，教授，博士生导师，主要从事输电线路在线监测技术、非线性理论研究． E-mail:ddai@scut.edu.cn
  • About author:赵东生(1980-)，男，博士生，主要从事输电线路在线监测技术研究． E-mail: zds_gz@126． com
  • Supported by:
    Supported by the National High-tech R＆D Program of China (863 Program)(2011AA05A120)

PDF

1025

被引次数

4

摘要： 基于电容式电势能采集器采集交流输电杆塔周围空间的电势能，为安装于杆塔上的输电线路在线监测装置供电． 文中首先分析了电容式电势能采集的电路模型和负载阻值对采集器输出功率的影响，得到了获取最大能量的条件． 然后针对交流双回 500 kV干字型输电杆塔的塔头电场分布情况进行了数值仿真，得到电势能采集器适合的安装位置． 最后通过实验测量到直径 40 cm、间距 15 cm 的电容式采集器在电场发生单元工频电压为 50kV 时，24s 内采集的能量为 5mJ，可以等效为 208 μW 的输出功率，满足无线传感器的最小功率要求． 实际的架空输电线路运行电压更高，如能在杆塔上有效利用高场强区域，优化电容采集器结构，则完全可能实现更高的功率输出，并最终为安装于杆塔上的在线监测装置供电．

关键词: 输电线路, 杆塔, 电势能, 能量采集

Abstract: Proposed in this paper is a method of utilizing a capacitive transducer to harvest the electric potential energy stored in the space around the AC transmission line，which helps to supply power to the on-line -monitoring system installed on a transmission tower． First，the circuit model of the potential energy-harvesting system and the relationship between the load resistance and the output power are analyzed，and a way to harvesting the maximum energy is presented． Then，the electric field distribution at the tower head of a 500kV AC double-loop transmission line is simulated，and the places suitable for transducer installation are determined． Finally，an experiment is con-ducted by adopting a capacitive transducer with a radius of 40cm and an interval of 15cm，and about 5mJ of energy is obtained at 50kV in 24s，which means that the capacitive transducer can afford an output power of 208 μW to meet the minimum power limit of wireless sensor nodes． In practically application，there is higher operating voltage compared with the experiment，by utilizing the high-intensity electric field efficiently on the tower with optimized capacitive transducer，enough energy will be harvested to power the on-line -monitoring system．

Key words: electric transmission line, tower, electric potential energy, energy harvesting

中图分类号: 

总访问量
今日访问
在线人数
粤ICP备05084312号
版权所有 © 华南理工大学学报编辑部
地址：广州 五山 华南理工大学17号楼 　邮编：510640
电 话：020-87111794　E-mail : journal@scut.edu.cn
  • 微信号：Journalscut
  • QQ群：699235083