基于有限元法的电缆变压器绕组的暂态热路模型研究  

A Study of Transient Thermal Circuit Model for the Cable Transformer Coil Based on Finite Element Method

作　　者：傅晨钊[1] 汲胜昌[2] 王世山[2] 李彦明[2] 

机构地区：[1]华东电力试验研究院,200437 [2]西安交通大学电气工程学院,710049

出　　处：《电工技术学报》2003年第2期77-82,共6页Transactions of China Electrotechnical Society

摘　　要：对一个电缆变压器的绕组 ,通过求解有限元方程 ,得到其稳态条件下温度场和流场的分布。在此基础上 ,建立绕组以单匝电缆为单位的暂态热路模型 ,利用该模型可求解暂态条件下绕组各处的温升变化。The distribution of the temperature field and the flow field in steady-state condition is derived for a cable transformer's coil by solving the finite element equations Based on this,the thermal circuit model by taking a turn as unit in transient condition is built up The variation of the coil's temperature rise in transient condition can be calculated by using this model 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 暂态热路模型 有限元法 干式电力变压器 

分 类 号：TM412[电气工程—电器]