新型组合式验电器的设计与实现

王宁; 刘云华; 闫振宏; 张莉; 姚睿哲; 张龙飞; 吴艳莉

引用本文:	王宁,刘云华,闫振宏,等.新型组合式验电器的设计与实现[J].电力系统保护与控制,2019,47(19):164-170.
	WANG Ning,LIU Yunhua,YAN Zhenhong,et al.Design and implementation of a new combined electroscope[J].Power System Protection and Control,2019,47(19):164-170

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新型组合式验电器的设计与实现
王宁¹,刘云华¹,闫振宏¹,张莉²,姚睿哲²,张龙飞²,吴艳莉²
(1.大连理工大学电气工程学院，辽宁大连 116026;2.辽宁东科电力有限公司，辽宁沈阳 110000)

摘要:

为设计一款具有接触式与非接触式验电功能的10 kV高精确度验电器，提出一种新型高压验电方法。利用空间杂散电容分压原理和平板电容型电场传感器的电荷感应原理研制出一种10 kV新型组合式验电器。分析了工频电场分布，研究了空间杂散电容的分压原理并推导电场传感器的感应电压计算公式。利用Ansoft Maxwell对多种验电环境下的电磁场进行仿真并进行抗干扰能力分析，同时设计硬件电路和软件程序。在搭建的高压试验平台下进行接触式验电试验和非接触式验电试验。试验结果表明，在高电压输电环境下，非接触式验电的感应电压变化符合电场强度的变化规律，接触式验电和非接触式验电具有较高的验电准确度。

关键词: 验电器非接触式电场强度电磁仿真

DOI：10.19783/j.cnki.pspc.181283

分类号:

基金项目:国家自然科学基金项目资助(51577022)

Design and implementation of a new combined electroscope

WANG Ning¹,LIU Yunhua¹,YAN Zhenhong¹,ZHANG Li²,YAO Ruizhe²,ZHANG Longfei²,WU Yanli²

(1. School of Electrical Engineering, Dalian University of Technology, Dalian 116026, China;2. Liaoning Dongke Electric Power Co., Ltd., Shenyang 110000, China)

Abstract:

In order to design a 10 kV high-precision electroscope with contact and non-contact power inspection functions,a new high-voltage power inspection method is proposed. A 10 kV new combined electroscope is developed by using the partial voltage principle of stray capacitance and the charge-sensing principle of the planar capacitive electric field sensor. In this paper, the power frequency electric field distribution is analyzed, the voltage division principle of the spatial stray capacitance and the inductive voltage calculation formula of the electric field sensor are derived. Ansoft Maxwell is used to simulate electromagnetic fields in a variety of electrical environments and analyze the anti-jamming capability. The hardware circuit and software program are designed simultaneously. The contact electricity inspection test and the non-contact electricity inspection test are carried out under the built high-voltage test platform. The results show that under the high-voltage transmission environments, the variation of induced voltage of non-contact electroscope conforms to the variation law of electric field strength, and contact and non-contact electroscope have higher accuracy of electroscope. This work is supported by National Natural Science Foundation of China (No. 51577022).

Key words: electroscope non-contact electric field strength electromagnetic simulation

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