摘要
根据不同的高压输电线的电压等级进行危险电场预警的传感器的研究，做到精确、稳定预警，用来保证带电作业时的工作者的人身安全和输电线路的正常运行。通过简化的高压输电线的物理模型，运用模拟电荷法推出高压输电线周围的电场强度的数值计算模型。然后用MATLAB仿真分析同一电压等级下不同高度处的电场差值和高度差之间的关系。得出一种非接触式的电场预警方法；分析比较不同电压等级下同一个位置不同高度处电场差值和高度差值的关系，得出一种非接触式电压等级识别方法。最后两种理论相融合成为一种根据不同电压等级进行安全距离预警的方法，为实际中的高压输电线的带电作业安全预警传感器提供可行方案。
In this paper, study the dangerous electric field warning sensors of the high voltage transmission lines with different voltage levels and hope to ensure the safety of the workers and the normal operation of the transmission lines. By simplifying the physical model of the high voltage transmission line, the numerical calculation model of the electric field strength around the high voltage transmission line is introduced by using the analog charge method. Then using MATLAB simulation analysis of relationship between the electric field difference and the height difference at the same voltage level of different height, draw a non-contact electric field early warning method; Analysis comparison relationship between electric field difference and the height difference at the same positions and the different height of below different voltage levels. It concludes the method that non-contact type voltage grade identification. At last, the two kinds of theories are integrated into a safe distance early warning method based on different voltage levels, which provides a feasible scheme for the safe early warning sensors for the live line work of the high voltage transmission line.
作者
杨金东
陶晔
李周龙
YANG Jindong TAO Ye LI Zhoulong(Lincang Power Supply Company, Yunnan Power Grid Co., Ltd, Lincang, Yunnan 677000, Chin)
出处
《云南电力技术》
2017年第1期126-131,共6页
Yunnan Electric Power
关键词
模拟电荷法
电场预警
非接触式电压等级识别
高压输电线
simulation charge method
electric field early warning
the non-contact identification of high voltage level
high voltagetransmission lines
