电器与能效管理技术Issue(1)：76-81,6.DOI:10.16628/j.cnki.2095-8188.2026.01.011
环保气体环网柜关键技术研究应用
Research and Application of Key Technologies for Environmentally Friendly Gas-Insulated Ring Main Units
廖天明 1赵金良 2沈金华 2王成祎3
作者信息
- 1. 国网上海市电力公司,上海 201122
- 2. 上海电气电力电子有限公司,上海 201906
- 3. 伊顿电力设备有限公司苏州分公司,江苏 苏州 215021
- 折叠
摘要
Abstract
With the large-scale integration of new energy sources represented by electric vehicle charging piles and distributed photovoltaics into the Shanghai distribution network,traditional sulfur hexafluoride(SF6)gas-insulated ring main units(RMUs)equipped with load switches are increasingly unable to meet the requirements of new energy connection.To meet the core demands of reliability and intelligence for environmentally friendly gas-insulated RMUs,research on structural optimization and key digital technologies is carried out.In terms of structural design,type tests at 0 bar gauge pressure are passed through the optimization of electric field fillets,shield rings,and the spatial arrangement of copper bars,thus improving the insulation reliability of environmentally friendly gases.For the development of the digital and intelligent system,a collaborative architecture of"cable fault indicator—TTU—IoT master station"is adopted,which enables active emergency repair responses within 1 minute after the occurrence of ring network faults.The results of 18 months of operation of the developed prototype in Shanghai show that the power supply reliability rate is increased by 0.08％,and the annual average operation and maintenance working hours are reduced by 32％.The research results provide an engineering practice paradigm for the selection of environmentally friendly switchgear in urban distribution networks under the"dual carbon"goals.关键词
新能源/环保环网柜/故障抢修/配电网Key words
new energy/environmentally friendly ring main unit/fault emergency repair/distribution network分类
信息技术与安全科学引用本文复制引用
廖天明,赵金良,沈金华,王成祎..环保气体环网柜关键技术研究应用[J].电器与能效管理技术,2026,(1):76-81,6.
