奉贤换流站换流变压器直流饱和保护分析  

Analysis on the Transformer Saturation Protection in Fengxian Converter Station

作　　者：李跃婷[1] 郝跃东[1] 李腾亮[1] 

机构地区：[1]国家电网公司运行分公司上海管理处,上海201413

出　　处：《南方电网技术》2012年第6期44-48,共5页Southern Power System Technology

摘　　要：奉贤换流站是±800 kV向家坝—上海特高压直流输电工程的受端变电站,在不平衡运行方式下该站的换流变压器充电时曾经出现过换流变压器饱和保护动作告警、甚至跳闸的情况。对奉贤换流站的换流变压器饱和保护原理进行介绍,并分析其动作逻辑、定值是否合理,然后讨论可能导致饱和保护误动的原因和生产厂家的解决方案。Fengxian Station is the receiving end of ±800 kV Xiangjiaba-Shanghai UHVDC transmission project, and the transformer DC saturation protection （TSP） in the station has alarmed and even triped under the unbalanced operation mode while the transformer was charged. This paper introduces the operation principle of TSP, and analyzes its action logic and the rationality of its settings, and then discusses the cause of leading to TSP maloperation and related solution for the manufacturer.

关 键 词：±800kV向上特高压直流输电工程 换流变压器 换流变压器直流饱和保护 

分 类 号：TM721.1[电气工程—电力系统及自动化] TM43