湖北电力2025，Vol.49Issue(2)：71-77,7.DOI:10.3969/j.issn.1006-3986.2025.02.009
自适应变电站倒闸操作的新型母线保护方案研究及应用
Research and Application of a New-Type Busbar Protection Scheme for Adaptive Switching Operation in Substations
摘要
Abstract
The traditional busbar protection realizes busbar operation mode identification by connecting to a single-position contact of a branch switch.This method has risks such as the uncertainty of manual operation and the loss of protection selectivity during the busbar switching operation process.To this end,the paper proposes an adaptive busbar differential protection scheme based on dual-position memory confirmation of knife switches and comprehensive comparison of virtual differential currents.First,the differential current is calculated based on the single-position contact points of the knife switch.Then,the balance tests and checks are conducted on the two-section small differential current according to the double-position contact points of the knife switch,and comparative analyses are carried out on the virtual differential current comparison table,so as to realize the discrimination of the busbar operation mode.In addition,is developed a busbar simulation panel compatible with adaptive busbar differential protection.The implementation and operation results of the pilot project show that the scheme enhances the busbar protection's ability to identify the operating mode,thereby improving the safety and reliability of adaptive switching in substations.关键词
母线保护/隔离刀闸/电力系统/差动电流/刀闸位置校正/变电站/区域电网Key words
busbar protection/disconnector/electric power system/differential current/position correction of the knife switch/substation/regional power grid分类
信息技术与安全科学引用本文复制引用
JI Shengfei,ZHU Xiwen,WANG Junjie..自适应变电站倒闸操作的新型母线保护方案研究及应用[J].湖北电力,2025,49(2):71-77,7.基金项目
国家电网重点研发计划(项目编号:5100-202427024A-1-1-ZN). （项目编号:5100-202427024A-1-1-ZN）
