基于有限元法的电缆接头温度场仿真

doi:10.3969/j.issn.1000-7229.2016.02.021

摘要/Abstract

摘要：

为了简化计算，在对电缆接头进行温度场仿真时，一般会利用其轴对称性来建立模型，但该模型与电缆实际敷设情况相比存在差异，导致仿真结果不准确。利用有限元软件Ansys分别仿真了轴对称模型下和实际敷设情况下电缆的温度场，通过对比分析，可以发现，用一定半径的环形土壤可以模拟实际土壤情况。将该半径应用到电缆接头的温度场仿真中，结果显示，用一定半径的环形土壤来模拟电缆实际敷设土壤情况，可以在轴对称模型下使电缆接头的温度场仿真结果更加准确。

关键词: 电缆接头, 温度场仿真, 温度差异, 有限元法（FEM）

Abstract:

In order to simplify the calculation, generally, the model of cable joints is established with its axial symmetry during the temperature field simulation. But this model is different from the actual laying situation, as a result, the simulation is not accurate. We simulate the temperature fields of the cables under the axial symmetric model and the actual laying conditions respectively with using finite element software Ansys. Through the comparison and analysis, it can be found that a certain radius of the annular soil can be used to simulate the actual soil conditions. The radius is applied to the temperature field simulation of cable joints. Based on the proposed method of using a certain radius of the annular soil to simulate the actual cable laying soil conditions, we can make the temperature field simulation of cable joints more accurate under the axial symmetry model.

Key words: cable joint, temperature field simulation, temperature difference, finite element method （FEM）

中图分类号:

TM 247

唐科，文武，丁俊杰，詹清华，肖微，刘超. 基于有限元法的电缆接头温度场仿真[J]. 电力建设, 2016, 37(2): 145-150.

TANG Ke, WEN Wu, DING Junjie, ZHAN Qinghua, XIAO Wei, LIU Chao. Temperature Field Simulation of Cable Joints Based on FEM[J]. Electric Power Construction, 2016, 37(2): 145-150.

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