Temperature Rise Calculation of Connector Terminal in UHV DC Converter Station and Analysis of Influencing Factors

ZHANG Xuesong; ZHU Kuanjun; SI Jiajun; LI Dongqing; SUN Na

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Temperature Rise Calculation of Connector Terminal in UHV DC Converter Station and Analysis of Influencing Factors

更新时间：2025-12-08

- Temperature Rise Calculation of Connector Terminal in UHV DC Converter Station and Analysis of Influencing Factors
- Vol. 44, Issue 4, Pages: 1351-1358(2018)
- 作者机构：
  
  中国电力科学研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：10 May 2018，
  
  Published：2018
- 稿件说明：
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ZHANG Xuesong, ZHU Kuanjun, SI Jiajun, et al. Temperature Rise Calculation of Connector Terminal in UHV DC Converter Station and Analysis of Influencing Factors[J]. 2018, 44(4): 1351-1358.
DOI：

ZHANG Xuesong, ZHU Kuanjun, SI Jiajun, et al. Temperature Rise Calculation of Connector Terminal in UHV DC Converter Station and Analysis of Influencing Factors[J]. 2018, 44(4): 1351-1358. DOI：

摘要

针对特高压直流换流站通流回路接头端子局部过热的问题

在分析接头端子热电耦合效应的基础上通过建立特高压直流换流站接头端子的有限元模型

研究了接触电阻、电流强度及结构尺寸对接头端子温升及温度分布的影响;利用接头端子温升预测模型

对其温升趋势进行了分析。计算结果表明

在通大电流的条件下

接头端子温升随时间呈指数增长的趋势并逐渐趋于稳定;当接头端子搭接部位接触电阻增大时

该部位温度相应增加;接头端子搭接部位温度随输入电流的增加呈线性增大趋势

其搭接部位温度随截面宽度、厚度的减少分别呈线性、非线性升高的趋势;接头端子温度沿电流方向呈梯度分布

其搭接部位温度比其他部位高

搭接部位中部温度最高

在垂直电流方向接头端子温度呈均匀分布。

Abstract

In order to solve the local overheating problem existing in connector terminal in UHV DC converter station

we constructed a FE model of the terminal connector by analyzing thermoelectricity coupling effect of terminal connector

by which the influence of contact resistance

current strength and structure size on the temperature rise and temperature distribution of terminal connector based on ANSYS can be analyzed.The temperature rise trend of terminal connector was analyzed by using the temperature rise prediction model.The calculation results show that

under the condition of big current

the temperature of splicing of terminal connectors increases exponentially with time and tends to be stable.When the contact resistance of the splicing part of terminal connector increases

the temperature of the part

which rises linearly with the increase of input current

increases correspondingly.The temperature of splicing of terminal connectors increases linearly and nonlinearly with the decrease of section widths and thicknesses.The temperature of splicing of terminal connectors is higher than that of other parts

and graded distribution appears along the current direction.The maximum temperature is located at the middle splicing of terminal connectors

and uniform distribution appears along the transverse direction.

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