基于IGBT串联脉冲功率法的氧化锌避雷器电流均衡性现场测试技术  

Field Test Technique of Zinc Oxide Arrester Current Balance Based on IGBT Series Pulse Power Method

作　　者：张耘溢 马磊 刘焱 裴晓元 骆一萍[2] 曾翔君[2] ZHANG Yunyi;MA Lei;LIU Yan;PEI Xiaoyuan;LUO Yiping;ZENG Xiangjun(State Grid:Ningxia Electric Power Co.,Ltd.,Yinchuan 750001,China;School of Electrical Engineering,Xi′an Jiaotong University,Xi′an 710049,China)

机构地区：[1]国网宁夏电力有限公司检修公司,银川750001 [2]西安交通大学电气工程学院,西安710049

出　　处：《电瓷避雷器》2022年第5期79-85,共7页Insulators and Surge Arresters

摘　　要：由氧化锌避雷器并联阀柱伏安特性不一致导致的爆炸事故在各等级电网中普遍存在,为此提出了一种能够应用于现场检测以及定期停电检测的氧化锌避雷器并联阀柱电流均衡性测试方法,通过IGBT串联技术构造高压直流开关,通过脉冲功率法释放能量进行检测,摆脱了传统方法对大功率测试电源的需求,大大减少了无源器件的重量和体积,搭建了低电压-电流等级实验平台,并进行了原理验证。结果表明,该方法能够有效地对避雷器各并联阀柱电流均衡性进行检测,且能够方便地应用于现场检测,对电力系统及电力设备的经济安全运行具有重要意义。Explosion accidents caused by the inconsistent volt-ampere characteristics of the parallel spools of zinc oxide arresters are common in all levels of power grids. For this reason, a method for testing the current balance of the parallel spools of zinc oxide arresters is proposed, which can be applied to on-site detection and regular power failure detection. The high-voltage DC switch is constructed through IGBT series technology, and the pulse power method is used to release energy for detection. This eliminates the need for high-power test power supplies in traditional methods, greatly reduces the weight and volume of passive components, and establishes low voltage-current level experiments. The principle of the platform is verified, and the results show that the method can effectively detect the current balance of each parallel spool of the arrester, and can be easily applied to field detection, which is of great signi-ficance to the economic and safe operation of power systems and power equipment.

关 键 词：氧化锌避雷器 电流均衡性 IGBT串联 高压脉冲 

分 类 号：TM862[电气工程—高电压与绝缘技术]