Design of an Energy Extraction Power Supply for Video Monitoring of Transmission Lines

CHENG Yu; ZENG Xiangjun; MA Zhaoyu; LUO Yiping; TIAN Haoyang; WU Tianyi

doi:10.13296/j.1001-1609.hva.2024.10.016

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Design of an Energy Extraction Power Supply for Video Monitoring of Transmission Lines

Research & Analysis | 更新时间：2025-04-26

- Design of an Energy Extraction Power Supply for Video Monitoring of Transmission Lines
- High Voltage Apparatus Vol. 60, Issue 10, Pages: 156-163(2024)
- 作者机构：
  
  1.西安交通大学电气工程学院，西安　 710049
  2.国网上海市电力公司电力科学研究院，上海　 200437
- 作者简介：
- 基金信息：
  
  Science and Technology Project of the State Grid Corporation of China (Research on Key Technologies of Self-powered Sensing for Energy Internet)
- DOI：10.13296/j.1001-1609.hva.2024.10.016
  CLC：
- Received：15 May 2024，
  
  Revised：03 August 2024，
  
  Published：16 October 2024
- 稿件说明：
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CHENG Yu, ZENG Xiangjun, MA Zhaoyu, et al. Design of an Energy Extraction Power Supply for Video Monitoring of Transmission Lines[J]. High voltage apparatus, 2024, 60(10): 156-163.
DOI：

CHENG Yu, ZENG Xiangjun, MA Zhaoyu, et al. Design of an Energy Extraction Power Supply for Video Monitoring of Transmission Lines[J]. High voltage apparatus, 2024, 60(10): 156-163. DOI： 10.13296/j.1001-1609.hva.2024.10.016.

摘要

供电电源是保证高压输电线路在线监测装置稳定运行的关键，文中提出了一种基于高压电场感应取能技术的取能电源，并分别对其功率电路和控制电路进行分析设计。感应极板产生的位移电流作为取能电源的输入，直接决定着取能电源的输入功率，文中利用Comsol软件研究了感应极板尺寸对位移电流的影响，确定了感应极板的尺寸，并和实测数据进行对比，验证了仿真的正确性。基于此，文中研制了一套视频监测装置，通过感应极板和取能电源实现装置的自取能，拍摄输电线及周围环境视频并发送到远程终端。最后，通过实验确定了当视频监测装置应用在110 kV电压等级下时，远程终端接收到的单次视频时长为2.2 min，视频间隔为54.9 min。

Abstract

Power supply is the key to ensure stable operation of on-line monitoring device of high-voltage transmission line. In this paper

a kind of energy extraction power supply based on the high-voltage electric field induction energy extraction technology is proposed

and its power circuit and control circuit are analyzed and designed respectively. The displacement current generated by the inductor pole plate as the input of the energy extraction power supply directly determines the input power of the energy extraction power supply. The influence of the size of the inductor pole plate on the displacement current is investigated by using the Comsol software

the size of the inductor pole plate is determined and compared with actually measured data so to verify the correctness of the simulation. Based on this

a set of video monitoring device is developed in the paper

which realizes the self-energy extraction of the device through the inductor pole plate and the energy extraction power supply

shoots the video of the transmission line and the surrounding environment and sends it to the remote terminal. Finally

it is experimentally determined that when the video monitoring device is applied at voltage level at 110 kV

the duration of a single video received by the remote terminal is 2.2 min

and the video interval is 54.9 min.

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