南方电网技术
南方電網技術
남방전망기술
SOUTHERN POWER SYSTEM TECHNOLOGY
2012年
6期
44-48
,共5页
±800 kV 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
±800 kV 嚮上特高壓直流輸電工程%換流變壓器%換流變壓器直流飽和保護
±800 kV 향상특고압직류수전공정%환류변압기%환류변압기직류포화보호
±800 kV Xiangjiaba–Shanhai UHVDC project%converter transformer%converter transformer saturation protection
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.
奉賢換流站是±800 kV 嚮傢壩—上海特高壓直流輸電工程的受耑變電站,在不平衡運行方式下該站的換流變壓器充電時曾經齣現過換流變壓器飽和保護動作告警、甚至跳閘的情況.對奉賢換流站的換流變壓器飽和保護原理進行介紹,併分析其動作邏輯、定值是否閤理,然後討論可能導緻飽和保護誤動的原因和生產廠傢的解決方案.
봉현환류참시±800 kV 향가패—상해특고압직류수전공정적수단변전참,재불평형운행방식하해참적환류변압기충전시증경출현과환류변압기포화보호동작고경、심지도갑적정황.대봉현환류참적환류변압기포화보호원리진행개소,병분석기동작라집、정치시부합리,연후토론가능도치포화보호오동적원인화생산엄가적해결방안.
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.
