直流电容器实际运行工况下的老化试验研究  

Study on Aging Test of DC Container under Actual Operating Conditions

作　　者：胡啸宇 张晨晨 杨海涛 丁国成 吴杰 程璐[2] HU Xiaoyu;ZHANG Chenchen;YANG Haitao;DING Guochen;WU Jie;CHENG Lu(Electric Power Research Institute,State Grid Anhui Electric Power Co.,Ltd.,Hefei 230022,China;School of Electrical Engineering,Xi′an Jiaotong University,Xi′an 710049,China)

机构地区：[1]国网安徽省电力有限公司电力科学研究院,安徽合肥230022 [2]西安交通大学电气工程学院,陕西西安710049

出　　处：《电工技术》2022年第18期95-97,100,共4页Electric Engineering

摘　　要：针对换流站直流滤波电容器在实际工况下的老化问题,搭建了直流叠加谐波老化试验平台,对电容器元件施加不同参数的直流叠加谐波电压,得到不同电应力下老化后的电容器,进而获得电容器劣化曲线。通过对比分析多组电容器电容量的衰减,得到导致直流电容器性能劣化的重要影响因素,为换流站直流电容器的寿命评估提供了理论研究基础。In this paper,aiming at the aging problem of DC filter capacitors in the converter station under actual working conditions,a DC superimposed harmonic aging test platform is built,and different parameters of DC superimposed harmonic voltages are applied to capacitor components to obtain the aging capacitors under different electrical stresses.Then,the deterioration curve of capacitors is obtained.By comparing and analyzing the capacitance decay of several groups of capacitors,the important factors that lead to the deterioration of DC container performance are obtained,which provides a theoretical basis for the life evaluation of DC container in converter station.

关 键 词：直流电容器 老化试验 谐波电压 劣化因素 

分 类 号：TM53[电气工程—电器]