基于ANSYS CFX的变压器绕组温度场监测研究  

Study on monitoring of transformer winding temperature field based on ANSYS CFX

作　　者：姚鑫[1] 张长胜[1] 李英娜[1] 赵振刚[1] 段朝磊[1] 李川[1] YAO Xin;ZHANG Chang-sheng;LI Ying-na;ZHAO Zhen-gang;DUAN Chao-lei;LI Chuan(Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, Chin)

机构地区：[1]昆明理工大学信息工程与自动化学院,云南昆明650500

出　　处：《传感器与微系统》2018年第4期77-79,83,共4页Transducer and Microsystem Technologies

基　　金：国家自然科学基金资助项目(51567013);昆明理工大学人才培养基金资助项目(KKSY201303004);云南省应用基础研究计划项目(2013FZ021);中国博士后科学基金面上资助(一等资助)项目(2014M552552XB)

摘　　要：利用Maxwell电磁仿真软件计算变压器在稳定满载运行过程中绕组损耗情况,将得出的损耗数据转换为发热载荷输入ANSYS CFX中对该35 k V油浸式变压器绕组的温度分布情况进行研究。从60,120 min两个时间段对绕组的温度分布进行仿真分析,找出最热点分布以及相应的温度值,得出变压器在运行120 min时,为变压器最热点温度时刻,低压绕组最热点位于B相绕组,为75.5℃,高压绕组最热点温度位于C相绕组,为65.4℃;变压器绕组中部温度整体较上部和下部高,且随着变压器工作时间延长,变压器整体温度升高;变压器整体低压绕组温度较高压绕组温度高。Maxwell electromagnetic simulation software is used to calculate loss of transformer winding during stable and full load operation,the resulting losses data is converted to heat load and is input into ANSYS CFX to conduct research on temperature distribution of 35 k V oil-immersed transformer windings. From two period of time of 60 min,120 min,simulation analysis on winding temperature distribution is carried out to identify the hottest spot distribution and corresponding temperature values,while transformer runs 120 min is,the hottest temperature of the transformer,the hottest spot of low voltage winding located in B phase winding is 75. 5 ℃,the hottest spot temperature of high voltage winding in the C phase winding is 65.4 ℃; the whole transformer winding temperature in the center is higher than upper and lower and prolongs working time of transformer,the transformer is increased temperature of overall temperature; overall low-voltage winding temperature of transformer is higher than high voltage winding.

关 键 词：变压器 绕组 Maxwell电磁仿真 ANSYS CFX 损耗 热点温度 

分 类 号：TP214[自动化与计算机技术—检测技术与自动化装置]