新型内嵌式地线融冰电流计算
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引用本文:胡杨昊,易灵芝,赵纯.新型内嵌式地线融冰电流计算[J].计算技术与自动化,2015,(2):56-59
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作者单位
胡杨昊,易灵芝,赵纯 (1.国网湖南省电力公司电力科学研究院湖南 长沙410007
2.湘潭大学 信息工程学院湖南 湘潭411005) 
中文摘要:针对湖南电网研发的新型内嵌式地线地线新型直流融冰技术,提出地线直流融冰的所涉及的两个重要的参数(临界融冰电流和最大融冰电流)概念和计算方法。基于有限元法,以GJ-70电线为模型,建立3D热-电耦合仿真模型,仿真得出不同气候、温度条件下的临界融冰电流,以及地线正常运行所允许的最大电流,与试验人员得出的实验数据进行对比,进一步验证这种融冰技术的优越性,并为运行人员有效的融冰电流范围提供了参考依据。
中文关键词:有限元  直流融冰  新型地线  临界融冰电流  最大融冰电流
 
Current Calculation Model Embedded Wire Melting Ice
Abstract:In this paper, novel embedded ground wire in Hunan power system research and development of new DC ice melting technology, put forward two important parameters involved ground DC ice melting(the least ice-melting current and the max allowed current)concept and calculation method. According to the configuration GJ-70 wire, a 3D thermal-electric coupled simulation model of wire covered with ice was constructed based on finite element method(FEM) using ANSYS software. Simulation of the ice melting current critical different climate, temperature, and maximum current allows the ground running, compared with experimental data obtained by test personnel, further verify the superiority of the ice melting technology, and for the operating personnel effective ice melting current range offers reference.
keywords:FEM  DC ice-melting  earth wire  the least ice-melting current  the max allowed current
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