变压器串联的配电网线路交流融冰方法研究与应用  

Research on AC Ice-melting Method for Distribution Network Lines with Double Transformers in Series

作　　者：邓元实[1] 宋静文[2] 张燃[1] 薛志航[1] 

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]国网四川省电力公司技能培训中心,四川成都611133

出　　处：《四川电力技术》2016年第6期29-31,40,共4页Sichuan Electric Power Technology

摘　　要：冬季配电网线路覆冰时,可以采用交流融冰的方法对线路全线进行融冰作业。传统交流融冰采用变电站内10 k V母线作为融冰电源,常出现由于线路阻抗不匹配,导致融冰电流小于最小融冰电流或大于线路最大融冰电流,从而无法进行交流融冰的情况。提出了一种基于变压器串联的配电网线路交流融冰方法,作为传统交流融冰方法的有效补充,提升了配电网线路交流融冰适用率。技术人员应用该方法成功对10 k V桃铁线进行现场融冰,取得了较好的工程应用效果,可为类似的配电网线路交流融冰提供参考。When the distribution network lines are iced in winter, the AC ice -melting method is usually adopted. 10 kV bus in substation is selected as the power supply of AC ice - melting in the traditional AC ice - mehing, but it has some restrictions because of the incompatible line impedance. A new AC ice - melting method using double transformers in series is proposed. As an effective supplement, it can improve the applicability of AC ice - melting. AC ice - melting in 10 kV Taotie line has been successfully completed with the proposed method, which obtains a good application effect. It can provide a reference for the similar distribution network line when AC ice - melting is needed.

关 键 词：配电网线路 交流融冰 双变压器串联 

分 类 号：TM726[电气工程—电力系统及自动化]