Research on thermal circuit model for power transformer winding temperature field based on Matlab

WANG En; CAO Min; LI Bo; TANG Biao; ZHAO Zhen-gang; GAO Li-hui

doi:10.13873/J.1000-9787(2016)07-0051-04

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Research on thermal circuit model for power transformer winding temperature field based on Matlab

更新时间：2025-09-11

- Research on thermal circuit model for power transformer winding temperature field based on Matlab
- Vol. 35, Issue 7, Pages: 51-54(2016)
- 作者机构：
  
  1. 云南电网有限责任公司电力科学研究院
  2. 南方电网公司电能计量重点实验室
  3. 昆明理工大学信息工程与自动化学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2016)07-0051-04
  CLC： TM41
- Published：2016
- 稿件说明：
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[1]王恩,曹敏,李博,唐标,赵振刚,高立慧.基于Matlab热路模型的变压器绕组温度场研究[J].传感器与微系统,2016,35(07):51-54.

WANG En, CAO Min, LI Bo, et al. Research on thermal circuit model for power transformer winding temperature field based on Matlab[J]. 2016, 35(7): 51-54.
[1]王恩,曹敏,李博,唐标,赵振刚,高立慧.基于Matlab热路模型的变压器绕组温度场研究[J].传感器与微系统,2016,35(07):51-54. DOI： 10.13873/J.1000-9787(2016)07-0051-04.

WANG En, CAO Min, LI Bo, et al. Research on thermal circuit model for power transformer winding temperature field based on Matlab[J]. 2016, 35(7): 51-54. DOI： 10.13873/J.1000-9787(2016)07-0051-04.

摘要

通过Matlab仿真分析

建立变压器绕组热路模型

得到绕组的热点位置和温升范围

将一种聚四氟乙烯材料作底板的光纤Bragg光栅（FBG）传感器通过匝间的垫片安装于绕组的热点位置。通过光栅窄带滤波反射后

解调拟合出光波长

通过数学模型计算得到热点温度。采集数据显示

测得绕组热点温度在额定功率实测为71℃

仿真结果为71.8℃;1.3倍功率实测温度为73℃

仿真结果为73.6℃。通过对比

能够及时在线反映出绕组的热点温度

为变压器的安全运行提供重要的参考数据。

Abstract

By Matlab simulation analysis

thermal circuit model for transformer winding is set up

to obtain hot point location and temperature-rising range of winding

FBG sensor using Teflon material as substrate is installed in winding hotspot locations via gasket between turns. After reflection by narrowband filtering of grating

demodulate and fit optical wavelength

calculate by mathematical models to obtain hot spot temperature. Collected data show that the measured winding hot spot temperature is measured as 71 ℃ at rated power

the simulation results is71. 8 ℃; the measured temperature is 73 ℃ at 1. 3 times the power

the simulation results is 73. 6 ℃. Hot spot temperature of winding

can be reflected in time and on-line by comparing provide important reference data for safe operation of transformer.

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references

基于MATLAB多绕组变压器模型的磁饱和式可控电抗器仿真建模方法 [J]. 田铭兴,杨秀川,杨雪凇. 电力自动化设备 . 2014(03)

电力变压器运行状态可拓层次评估 [J]. 杜林,袁蕾,熊浩,唐纲,李刚,孙才新. 高电压技术 . 2011(04)

基于光纤光栅传感技术的变压器温度检测系统 [J]. 卢艳,刘立忠,丁国兴. 水电自动化与大坝监测 . 2011(01)

变压器绝缘老化引起预试电气绝缘参数变化的仿真研究 [J]. 魏建林,王世强,吴凤娇,董明,黄新波,张冠军. 高电压技术 . 2009(07)

油浸变压器温度在线测量技术的研究 [D]. 袁卓. 沈阳工业大学 2014

干式电力变压器技术与应用[M]. 中国电力出版社 , 余涛等, 2008

Thermal analysis of cast-resin dry-type transformers [J] . M. Eslamian,B. Vahidi,A. Eslamian. Energy Conversion and Management . 2011 (7)

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