换流变压器局部放电检测与特性研究综述  

Review of Partial Discharge Detection and Characteristics of Converter Transformer

作　　者：高树国 赵军 乔辉 田源 王亚林[3] 尹毅[3] GAO Shuguo;ZHAO Jun;QIAO Hui;TIAN Yuan;WANG Yalin;YIN Yi(Hebei Electric Power Research Institute,State Grid Hebei Electric Power Supply Co.,Ltd.,Shijiazhuang 050021,China;State Grid Hebei Electric Power Co.,Ltd.,Shijiazhuang 050022,China;Department of Electrical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]国网河北省电力有限公司电力科学研究院,河北石家庄050021 [2]国网河北省电力有限公司,河北石家庄050022 [3]上海交通大学电气工程系,上海200240

出　　处：《绝缘材料》2022年第7期1-9,共9页Insulating Materials

基　　金：国网河北省电力有限公司科技项目(kjcb2020-013)。

摘　　要：随着我国特高压直流输电系统工程的发展,换流变压器的电压等级越来越高,绝缘问题也越来越突出。局部放电的研究对于换流变压器绝缘状况的判断以及设备寿命的评估具有重要的意义。本文介绍了换流变压器的绝缘特点、现场试验的过程、局部放电的检测方法及其注意事项,回顾了中外专家学者对换流变压器局部放电研究的成果,最后展望了换流变压器局部放电的研究方向,为换流变压器的运行维护和学术研究提供参考。With the development of UHV DC transmission system engineering in China,the voltage level of converter transformers is getting higher and higher,and insulation problems are becoming more and more prominent.The study of partial discharge is of great significance to the insulation condition judgment and equipment life evaluation of converter transformer.In this paper,the insulation characteristics,the process of field tests,and the detection methods of partial discharges and their precautions of converter transformer were introduced,the research achievements of experts and scholars at home and abroad on the partial discharge of converter transformer were reviewed,and the research directions of partial discharge of converter transformer were prospected,which provided a reference for the operation,maintenance,and research of converter transformers.

关 键 词：换流变压器 局部放电 交直流电压 油纸绝缘 

分 类 号：TM835[电气工程—高电压与绝缘技术]