电瓷避雷器Issue(4)：1-9,9.DOI:10.16188/j.isa.1003-8337.2024.04.001
±550 kV直流GIS多柱并联避雷器螺旋结构自生电感均流特性研究
Current Sharing Characteristics of Self-Generated Inductance of Spiral Structure of±550 kV DC GIS Multi-Column Parallel Arrester
摘要
Abstract
In order to solve the problem of uneven current distribution in multi-column parallel energy ab-sorption of±550 kV DC GIS arrester,a multi-column parallel arrester with spiral arrangement structure of zinc oxide resistor is proposed.The spiral arrangement of zinc oxide resistors can not only effectively shorten the length of arrester,but also reduce the stress impact of offshore platform vibration on DC GIS arrester.At the same time,the self-generated inductance of the spiral structure resistor can reduce the non-uniformity of the current distribution of each column when the multi-column parallel energy absorp-tion.Firstly,the spiral structure parameters of±550 kV DC GIS multi-column parallel arrester are de-signed,and the multi-physical field simulation model of the arrester is established.The self-generated in-ductance under the spiral arrangement structure of zinc oxide resistors is calculated.The influence of self-generated inductance on the current distribution when the multi-column parallel arrester absorbs energy is further studied.The research results show that the self-generated inductance of the single-column core spiral structure of the±550 kV DC GIS arrester is 4.6 μH,which can reduce the deviation coefficient of the current of each column when the multi-column parallel energy absorption of the arrester is reduced by 20％～65％,which verifies the effectiveness of the self-generated inductance current sharing of the multi-column parallel arrester spiral structure resistor.关键词
直流GIS避雷器/螺旋结构/并联均流/多物理场仿真Key words
DC GIS arrester/spiral structure/parallel current sharing/multi-physics simulation引用本文复制引用
刘思远,王柳丹,陈金超,陈奕帆..±550 kV直流GIS多柱并联避雷器螺旋结构自生电感均流特性研究[J].电瓷避雷器,2024,(4):1-9,9.基金项目
国家重点研发计划(编号:2021YFB2400604).Project supported by National Key R&D Program of China(No.2021YFB2400604). （编号:2021YFB2400604）
