Simulation of Temperature Field and Ampacity of Underground Cable System Based on Finite Element Method

ZHANG Hong-lin1; TANG Jun2; CHEN Wei-gen1; WANG You-yuan1

doi:10.13296/j.1001-1609.hva.2010.02.013

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Simulation of Temperature Field and Ampacity of Underground Cable System Based on Finite Element Method

更新时间：2025-04-26

- Simulation of Temperature Field and Ampacity of Underground Cable System Based on Finite Element Method
- High VoltageApparatus Vol. 46, Issue 2, Pages: 42-45+51(2010)
- 作者机构：
  
  1. 重庆大学输配电装备及系统安全与新技术国家重点实验室
  2. 四川省自贡市电业局
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2010.02.013
  CLC： TM757
- Published：2010
- 稿件说明：
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[1]张洪麟,唐军,陈伟根,王有元.基于有限元法的地下电缆群温度场及载流量的仿真计算[J].高压电器,2010,46(02):42-45+51.

ZHANG Hong-lin1, TANG Jun2, CHEN Wei-gen1, et al. Simulation of Temperature Field and Ampacity of Underground Cable System Based on Finite Element Method[J]. High voltageapparatus, 2010, 46(2): 42-45+51.
[1]张洪麟,唐军,陈伟根,王有元.基于有限元法的地下电缆群温度场及载流量的仿真计算[J].高压电器,2010,46(02):42-45+51. DOI： 10.13296/j.1001-1609.hva.2010.02.013.

ZHANG Hong-lin1, TANG Jun2, CHEN Wei-gen1, et al. Simulation of Temperature Field and Ampacity of Underground Cable System Based on Finite Element Method[J]. High voltageapparatus, 2010, 46(2): 42-45+51. DOI： 10.13296/j.1001-1609.hva.2010.02.013.

摘要

结合传热学知识对地下直埋电缆温度场进行分析

构造出热传导方程和边界条件后

采用专业有限元软件建立了3根直埋单芯电缆的温度场模型

计算区域采用三角形单元剖分法。对电缆温度场分布及载流量的确定采用对分法进行迭代求解。通过仿真

分析了影响土壤直埋电缆载流量的各个因素以及各因素对载流量的影响规律

为工程实际提供了参考依据。

Abstract

Temperature distributions of buried cables are analyzed according to the knowledge of heat transfer.Heat conduction equation and boundary condition are established

and a model of three single core buried cables is built using the professional FEM software.The calculation region is divided with triangle format.The temperature field distributions and ampacities of the cables are calculated with bisection method.The factors effecting ampacity of buried cable and the variation rule of ampacity with each factor are analyzed via simulation.

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