高压开关柜触头温度场的数值仿真分析  

Numerical simulation of high-voltage switchgear panel contact temperature

作　　者：周岩[1,2] 高杨[2,3] 刘婷婷[1] 陈营端[1] 白竹川[1] 

机构地区：[1]西南科技大学信息工程学院,四川绵阳621010 [2]中国工程物理研究院电子工程研究所,四川绵阳621900 [3]重庆大学光电技术及系统教育部重点实验室,重庆400044

出　　处：《传感器与微系统》2008年第12期102-105,共4页Transducer and Microsystem Technologies

基　　金：教育部访问学者基金资助项目

摘　　要：为验证光纤温度传感器用于高压开关柜触头温度检测的可行性,调研了高压开关柜触头的几何结构,利用多物理场耦合分析软件COMSOL Multiphysics,结合传热学相关理论进行了触头的温度场数值仿真分析。计算了额定电流和短路电流2种情况下的触头温度分布情况,结果表明:触指为触头温度检测的最佳位置;短路电流通过时,触头温度最高可达564℃。在此基础上,在安装、量程、应变干扰三方面对光纤温度传感器进行了分析,证实光纤温度传感器可用于触头温度的检测。In order to verify the feasibility that fiber-optic temperature sensor used for contact temperature measurement,the geometric structure of contact is studied, and with heat transfer theory, the software COMSOL Multiphysics is used to simulate contact temperature. In both conditions of rated current and rated short-circuit current, the distribution of contact temperature is calculated. Simulation result shows that the figure of contact is the best position for contact temperature measurement, and the maximum temperature of contact is 564℃ when short-circuit current flows. Then, the problems of fiber-optic temperature sensor installation, measurement range and strain interference are analyzed, which provs that fiber-optic temperature sensor can be used for contact temperature measurement.

关 键 词：高压开关柜 触头 光纤温度传感器 数值仿真 

分 类 号：TM572[电气工程—电器]