云南大理光伏±30 kV柔性直流输电工程过电压与绝缘配合研究  

Research on Overvoltage and Insulation Coordination for Converter Station of±30 kV Flexible DC Transmission Project in Dali of Yunnan

作　　者：陈卓 蒋艾町 梁亚博 夏雪 Chen Zhuo;Jiang Aiting;Liang Yabo;Xia Xue(CPECC Southwest Electric Power Design Institute Co., Ltd., Chengdu 610021, Sichuan, China)

机构地区：[1]中国电力工程顾问集团西南电力设计院有限公司,四川成都610021

出　　处：《四川电力技术》2021年第1期14-19,61,共7页Sichuan Electric Power Technology

摘　　要：为合理确定±30 kV低压柔性直流输电工程设备的绝缘水平和配置避雷器,基于云南大理光伏升压±30 kV柔性直流工程,利用PSCAD/EMTDC对工程换流站的暂态过电压进行了计算,并根据计算结果进行绝缘配合研究。研究结果对工程换流站设备的选型和制造具有指导意义,也为低压柔直输电工程的建设提供了参考依据。In order to decide the insulation level of the equipment in converter station of±30 kV flexible low voltage DC transmission project reasonably and configure the lightning arresters,based on±30 kV flexible DC project of Dali photovoltaic boost in Yunnan,the transient overvoltage of converter station is calculated with PSCAD/EMTDC.According to the calculation results,the insulation coordination is studied.The research results have a significance on guiding the type selection and manufacturing of converter station equipment,and also provide a reference for the construction of flexible low voltage direct transmission project.

关 键 词：低压柔性直流输电 ±30 kV 换流站 过电压计算 绝缘配合 

分 类 号：TM761[电气工程—电力系统及自动化]