电气技术2024，Vol.25Issue(3)：46-52,7.
±550kV直流气体绝缘金属封闭开关设备长期带电试验研究
Study on long-term live test for ±550kV DC gas insulated switchgear
姚璇 1南振乐 1杜文娟 1张博雅 2李奕萱2
作者信息
- 1. 西安西电开关电气有限公司,西安 710077
- 2. 西安交通大学电力设备电气绝缘国家重点实验室,西安 710049
- 折叠
摘要
Abstract
The existing converter platform of the offshore wind power all adopts conventional open equipment and electrical connection layout,which occupies the large space.In order to reduce the platform space and weight,the DC gas insulated switchgear(GIS)is used to replace the original open equipment.Insulation parts operate under the unipolar DC voltage for a long time,which generates surface charge accumulation,thus changing the electric field distribution and reducing the flashover voltage.There is no international and domestic standard for DC GIS,and systematic test guidance and operation experience are short.The long-term live test(prototype installation test)can effectively verify the reliability and stability of DC GIS.This paper focuses on the long-term test scheme and prototype,based on the multi-physical field coupling simulation,proposes the test scheme,and designs the prototype form.关键词
海上风电柔性直流输电/直流气体绝缘金属封闭开关设备(GIS)/表面电荷积聚/长期带电试验Key words
high voltage direct current transmission for offshore wind power/DC gas insulated switch(GIS)/surface charge accumulation/long-term live test引用本文复制引用
姚璇,南振乐,杜文娟,张博雅,李奕萱..±550kV直流气体绝缘金属封闭开关设备长期带电试验研究[J].电气技术,2024,25(3):46-52,7.
