四川电网移动直流融冰装置设计及现场融冰  

Dseign of Movable DC De-icer and Field Ice-melting for Sichuan Power Grid

作　　者：杨琳[1] 刘凡[1] 马小敏[1] 邓元实[1] 梁一桥 宋墩坊 李龙江[3] 

机构地区：[1]国网四川省电力公司电力科学研究院,四川成都610072 [2]浙江桂容谐平科技股份有限公司,浙江杭州310000 [3]国网四川省电力公司,四川成都610041

出　　处：《四川电力技术》2013年第5期64-68,94,共6页Sichuan Electric Power Technology

摘　　要：给出了四川电网220 kV及以下覆冰输电线路移动直流融冰装置设计、建设、现场融冰技术方案。移动直流融冰装置采用6脉动可控硅整流、强制风冷技术,经紧凑设计后整体尺寸为3.6 m×1.6 m×2.4 m,可满足四川电网多条220 kV及以下、100 km以内覆冰输电线路融冰需求。融冰装置设计考虑了谐波对公网及一、二次设备的影响,提出融冰现场安全控制策略。该装置在110 kV线路完成了大电流调试试验,并成功对220 kV线路进行现场融冰,取得了较好的工程应用效果,可为类似的融冰工作提供参考。The schemes for the design, construction and field test technology of movable DC de - icer for 220 kV and below ice - coating transmission lines in Sichuan Power Grid are proposed. The movable DC de - icer adopts 6 - pulse tbyristor rectifier and the forced air - cooling technology, its overall size is 3.6 m ×1. 6 m ×2.4 m after the compact design, so it can meet the requirements of several ice - coating transmission lines of 220 kV and below within 100 km in Sichuan Power Grid. The influ- ence of harmonic on the public network and the primary/secondary equipment is considered in the design of de - icer, and the security control strategy in the field is proposed. The high - current commissioning test in 110 kV transmission line and the field ice - melting in 220 kV transmission line are completed with good application effects, which can provide a reference for the similar ice -melting project.

关 键 词：直流融冰装置 谐波 现场调试 融冰电流 可控硅整流装置 

分 类 号：TM422[电气工程—电器]