架空线路金具能耗研究Research on Energy Consumption of Overhead Line Fittings
叶成,余虹云,连云飞
YE Cheng,YU Hongyun,LIAN Yunfei
摘要(Abstract)：
针对线路金具的能耗机理进行了研究,开展了铸铁及铝合金金具的能耗对比试验,同时进行了上述两类金具的三维涡流场有限元仿真分析,并提出了金具节能的新方案,即保留铸铁船体,采用低磁或无磁材料替换部分组件。结果表明:铸铁金具能耗远远高于铝合金金具,通过阻断闭合磁通回路即可显著降低金具能耗,新方案节能效果显著。
In this paper the energy consumption mechanism of the line fittings is studied, and comparison test of energy consumption of cast iron and aluminum alloy fittings is conducted. At the same time, the finite element simulation analysis on the three-dimensional eddy current field of the above two kinds of fittings is carried out, and a new scheme of energy saving for fittings is put forward, namely retention of cast iron hull and replacement of parts with low magnetic or non-magnetic materials. The results show that the energy consumption of cast iron fittings is much higher than that of aluminum alloy fittings, and the energy consumption of the fittings can be significantly reduced by blocking the closed flux loop. The energy saving effect of the new scheme is remarkable.
关键词(KeyWords)：
线路金具;能耗试验;涡流场仿真
line fittings;energy consumption test;eddy current field simulation
基金项目(Foundation): 国家电网公司总部科技项目(52110416001Z)
作者(Author):
叶成,余虹云,连云飞
YE Cheng,YU Hongyun,LIAN Yunfei
DOI: 10.19585/j.zjdl.201903014
参考文献(References)：
- [1]董吉谔.电力金具手册[M].北京:中国电力出版社,2010.
- [2]电力金具名词术语:GB/T 5075-2001[S].北京:中国电力出版社,2001.
- [3]厉天威,黄文京,何民,等.有限元法在高压输电线路线夹能量损耗计算中的应用[J].电网技术,2001,35(4):218-222.
- [4]汪海洋.基于输电线路金具的节能降耗[J].低碳世界,2016(7):71-72.
- [5]高虹瑞.输配电线路节能技术[J].电子技术与软件工程,2017(4):241.
- [6]程志光,高生.钢中涡流和磁滞损耗问题[J].变压器,1999(9):1-5.
- [7]梁永春,柴进爱,李彦明,等.有限元法计算交联电缆涡流损耗[J].高电压技术,2007,33(9):196-199.
- [8]潘启军,马伟明,赵治华,等.磁场测量方法的发展及应用[J].电工技术学报,2005,20(3):7-13.
- [9]李钟泽.关于计算感应电动势的三个公式[J].洛阳大学学报:自然科学版,1995(2):86-89.
- [10]李琳,张元禄.电力变压器三维漏磁场及铁芯拉板涡流损耗的计算[J].中国电机工程学报,1999,19(6):33-36.
- [11]屈文斌.变压器空载损耗中的涡流损耗和磁滞损耗研究[J].中国新技术新产品,2010(3):150.
- [12]杨庆新.工程涡流损耗和磁滞损耗的分析计算及磁损耗分离技术研究[D].天津:河北工业大学,1997.
- [13]严密,彭晓领.磁学基础与磁性材料[M].杭州:浙江大学,2006.
- [14]张松华.Fe-Mn基奥氏体无磁钢在节能电力金具上的应用研究[D],镇江:江苏大学,2006.
- [15]谢德鑫,白保东,等.三维涡流场的有限元分析[M].北京:机械工业出版社,2001.
- [16]LABRIDIS D,DOKOPOULOS P.Finite Element Computation of Eddy Current Losses in Nonlinear Ferromagnetic Sheaths of Three-phase power Cables[J].IEEE Transactions on Magnetics,1994,30(4):1407-1415.
- [17]PYUNGWOO J,BONGHAN L.Effects of Insulator Resistivity on Eddy Current Loss of Compressed Powder Cores Studied by FEM[J].IEEE Transactions on Magnetics,2009,45(6):2781-2783.