Research on the Fast Calculation Model for Transient Temperature Rise of Soil Directly Buried Cable Group

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

doi:10.13296/j.1001-1609.hva.2018.02.026

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Research on the Fast Calculation Model for Transient Temperature Rise of Soil Directly Buried Cable Group

更新时间：2025-04-26

- Research on the Fast Calculation Model for Transient Temperature Rise of Soil Directly Buried Cable Group
- High VoltageApparatus Vol. 54, Issue 2, Pages: 158-165(2018)
- 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.2018.02.026
  CLC： TM75
- Published：2018
- 稿件说明：
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[1]傅晨钊,司文荣,祝令瑜,李红雷,姚周飞.土壤直埋电缆群暂态温升快速计算模型的研究[J].高压电器,2018,54(02):158-165.

FU Chenzhao, SI Wenrong, ZHU Lingyu, et al. Research on the Fast Calculation Model for Transient Temperature Rise of Soil Directly Buried Cable Group[J]. High voltageapparatus, 2018, 54(2): 158-165.
[1]傅晨钊,司文荣,祝令瑜,李红雷,姚周飞.土壤直埋电缆群暂态温升快速计算模型的研究[J].高压电器,2018,54(02):158-165. DOI： 10.13296/j.1001-1609.hva.2018.02.026.

FU Chenzhao, SI Wenrong, ZHU Lingyu, et al. Research on the Fast Calculation Model for Transient Temperature Rise of Soil Directly Buried Cable Group[J]. High voltageapparatus, 2018, 54(2): 158-165. DOI： 10.13296/j.1001-1609.hva.2018.02.026.

摘要

文中研究了一种基于时域响应和热传导场可叠加原理的方法

以实现对土壤直埋电缆群暂态温升的快速计算。首先将电缆群的共同作用离散为多根电缆单独作用的组合

单根电缆自身发热利用自响应模型描述

电缆间的相互影响利用互响应模型描述

然后通过节点温升耦合的方式获得电缆线芯的综合温升

从而实现暂态温升的快速计算。在算例验证中

利用通用软件Cymcap提取模型参数后

计算了典型工况的暂态温升过程

并与软件结果进行了比较

验证了方法的有效性。

Abstract

A method based on the time domain response and superposition property of heat conduction is studied torealize the fast calculation of transient temperature rise of soil directly buried cable group. Transient temperature riseof cables could be simulated as the superposition of several single-core cables. The self-heating of single-core cableis described by using the self-excited response model. The interaction of different single-core cables is described bythe dynamic response model. Besides

the integrated temperature rise of cable core is obtained by node couplingmethod. In the case study

model parameters are firstly extracted by Cymcap. Temperature rise under typicaloperating conditions is then obtained respectively by the lumped parameter model and commercial software. Thecomparative results verify the validity of the method proposed in this paper.

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