基于有限元方法的电缆变压器绕组的热路模型研究  

STUDY OF THERMAL CIRCUIT MODEL FOR THE CABLE TRANSFORMER COIL BASED ON FINITE ELEMENT METHOD

作　　者：傅晨钊[1] 汲胜昌[1] 王世山[1] 李彦明[1] 颜惠宇[2] 

机构地区：[1]西安交通大学电气工程学院,陕西西安710049 [2]西北电力职工培训中心,陕西西安710054

出　　处：《高压电器》2003年第2期1-3,6,共4页High Voltage Apparatus

摘　　要：对一个电缆变压器的绕组,通过求解有限元方程,得到其温度场和热气流场的分布。在此基础上,建立其分布参数的热路模型。利用该模型经修正后求解了不同负载条件下绕组的温度分布,并将有限元法计算值和实测值进行了比较,证明了模型的正确性。这种方法为研究该类变压器的温度特性提供了方便。In this paper,the distributions of the temperature and flow field are derived for a cable transformer coil by solving the finite element equations.Based on this,the thermal circuit model with distribution parameters is built up.The temperature distribution is provided by using this model corresponding to various loads.The model is also proved to be valid through the comparison between the calculation results and the measurement results.The study provides a feasible way to investigate the temperature characteristics for the cable transformer.

关 键 词：电缆变压器 绕组 热路模型 有限元方法 电力变压器 干式电缆变压器 

分 类 号：TM403.2[电气工程—电器]