Fast Calculation Method for Steady Temperature Rise of Buried Cable Group Based on Transfer Matrix

FU Chenzhao; SI Wenrong; ZHU Lingyu; LI Honglei; YAO Zhoufei

doi:10.13296/j.1001-1609.hva.2017.12.022

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Fast Calculation Method for Steady Temperature Rise of Buried Cable Group Based on Transfer Matrix

更新时间：2025-04-26

- Fast Calculation Method for Steady Temperature Rise of Buried Cable Group Based on Transfer Matrix
- High VoltageApparatus Vol. 53, Issue 12, Pages: 134-139(2017)
- 作者机构：
  
  1. 国网上海市电力公司电力科学研究院
  2. 西安交通大学
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.12.022
  CLC： TM75
- Published：2017
- 稿件说明：
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[1]傅晨钊,司文荣,祝令瑜,李红雷,姚周飞.基于转移矩阵的土壤直埋电缆群稳态温升快速算法研究[J].高压电器,2017,53(12):134-139.

FU Chenzhao, SI Wenrong, ZHU Lingyu, et al. Fast Calculation Method for Steady Temperature Rise of Buried Cable Group Based on Transfer Matrix[J]. High voltageapparatus, 2017, 53(12): 134-139.
[1]傅晨钊,司文荣,祝令瑜,李红雷,姚周飞.基于转移矩阵的土壤直埋电缆群稳态温升快速算法研究[J].高压电器,2017,53(12):134-139. DOI： 10.13296/j.1001-1609.hva.2017.12.022.

FU Chenzhao, SI Wenrong, ZHU Lingyu, et al. Fast Calculation Method for Steady Temperature Rise of Buried Cable Group Based on Transfer Matrix[J]. High voltageapparatus, 2017, 53(12): 134-139. DOI： 10.13296/j.1001-1609.hva.2017.12.022.

摘要

文中研究了一种基于转移矩阵和热传导场可叠加原理的方法

以实现对复杂土壤直埋电缆群稳态温升的快速计算。将电缆群的共同作用离散为多根电缆单独作用的组合

两两间的相互影响利用转移系数描述

进而通过有限元计算获得表征电缆群热学特性的转移矩阵

从而实现快速计算。在算例验证中

分别用有限元方法和文中所述方法计算了6根直埋土壤电缆群的温升

并对结果进行对比

证明了基于转移矩阵快速算法求解的准确性。之后利用有限元计算和通用软件CYMCAP提取转移矩阵后计算温升

进一步验证了方法的有效性。

Abstract

To realize rapid calculation of steady temperature rise of complex buried cable group

a method based on the transfer matrix and the superposition principle of heat conductive field is proposed.The combined effect of the cable group is discretized into independent effects of multiple conductors.Then

the transfer matrix characterizing the thermal properties of the cable group can be obtained with the finite element calculation.In an example

the temperature rise of a buried cable group with six cables is calculated with the finite element method and the proposed method

respectively.The result obtained by the proposed fast calculation method based on transfer matrix is consistent with that by the finite element method

which verifies the accuracy of the proposed method.Besides

the software CYMCAP is adopted to extract the transfer matrix and then calculate the temperature rise

and comparison of thethus obtained resultwith that of the finite element method further verifies the availability of the proposed fast calculation method.

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