基于放电法的高压电场感应取能技术

发布时间：2018-05-08 07:28

本文选题：隔离开关 + 触头温度在线测量　；参考：《电力系统自动化》2015年08期

【摘要】：在高压电力线上安装的在线测量装置需要持续可靠的电能供应,提出了一种新的通过感应高压电场来获得能量的电源技术。这种技术的主要思想是通过安装在电力线与大地之间的一个金属极板来获得恒定的位移电流,使之向一个小容量的取能电容充电,进而通过一个放电电路将能量转移到一个大容量的储能电容上,当存储的能量达到一定水平,则提供给后端的测量装置。由于电力线的电压是稳定的,因此这种供电方式较少受到负载和环境的影响。文中详细介绍了放电法电场感应取能技术的主要原理和优化设计方法,并将之应用于一种隔离开关触头温度在线测量和无线传输装置中,该系统已经在110kV变电站中成功挂网运行,从而验证了技术的有效性。
[Abstract]:The on-line measuring device installed on the high voltage power line needs continuous and reliable power supply. This paper presents a new power supply technology to obtain energy through induction high voltage electric field. The main idea of this technique is to obtain a constant displacement current by installing a metal plate between the power line and the earth, so that it can be charged to a small capacitance. Then the energy is transferred to a large capacity energy storage capacitor through a discharge circuit. When the stored energy reaches a certain level, it is provided to the measuring device at the back end. Because the voltage of power line is stable, this power supply mode is less affected by load and environment. In this paper, the main principle and optimization design method of electric field induction energy acquisition technology by discharge method are introduced in detail, and it is applied to the on-line measurement of contact temperature of isolating switch and wireless transmission device. The system has been successfully running in 110kV substation, which verifies the effectiveness of the technology.
【作者单位】：西安交通大学电气工程学院;国网宁夏电力公司银川供电局;
【基金】：国家自然科学基金资助项目(51477134)~~
【分类号】：TM72

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