一种用于80kV直流电源测试的50Hz/20kW负载  

A 50 Hz/20 kW Load for 80 kV DC Power Supply Test

作　　者：吕东辉 张瑜 禹伟荣 李锐[1] 程杰[1] 徐秀栋[1] 胡祥刚[1] 吴少彤 张楠 LYU Donghui;ZHANG Yu;YU Weirong;LI Rui;CHENG Jie;XU Xiudong;HU Xianggang;WU Shaotong;ZHANG Nan(Northwest Institute of Nuclear Technology,Xi’an 710024,China)

机构地区：[1]西北核技术研究所,西安710024

出　　处：《现代应用物理》2022年第4期119-124,共6页Modern Applied Physics

基　　金：自然科学基金资助项目(51790521,51790523)。

摘　　要：针对80 kV直流电源重复频率运行测试中出现的负载电容放电后形成反压导致电源重复频率充电起始基线漂移的问题,从理论和仿真2方面分析得出,水电阻负载在高压微秒脉冲下击穿后,形成反压并按过阻尼释放是上述问题形成的原因。为此,研制了一套重复频率运行大功率负载系统,包括触发气体开关和固态吸收电阻2部分,固态吸收电阻为100Ω,吸收功率大于20 kW,可50 Hz重复频率连续运行,电阻负载可耐受80 kV微秒量级放电电压,避免了传统水电阻负载易被击穿而形成反压的问题。实验结果表明,该重复频率大功率负载系统解决了80 kV直流电源重复频率充电起始基线漂移、负载充电时间延长导致充电不满的问题,提高了电源测试系统重复频率运行的稳定性。A set of high power load system with repetitive operation is developed,which is composed of triggered gas switch and solid state absorption resistor.The solid absorption resistance value is 100Ω,and the absorption power is greater than 20 kW.The repetitive high power load system can operate continuously at 50 Hz.The resistance load can withstand 80 kV microsecond discharge voltage,avoiding the problem that the traditional water resistance loads are easy to broken down and form back voltage.The test results show that the repetitive frequency high power load system solves the problem that the charging start-line drift of the 80 kV DC power supply PRF charge and the load charging time extension lead to the power supply not being fully charged,and improves the PRF operation stability of the power supply test system.

关 键 词：固态电阻负载 水电阻负载 绝缘 击穿 电源测试 

分 类 号：TM836[电气工程—高电压与绝缘技术] TL51[核科学技术—核技术及应用]