电缆绕组变压器绕组温度场的二维数值计算

2D numerical calculation of temperature field of winding in cable winding transformer

对一个电缆绕组变压器的绕组 ,应用传热学和流体力学的原理建立其温度场和附近流场的有限元方程 ,通过求解方程 ,得到温度场和流场的分布 ,与实测温度值进行比较 ,误差均在 3K范围内 ,从而证明了此方法的正确性 ,为研究该类变压器的温度特性提供了方便。

For a winding model of cable winding transformer, the finite element equations of temperature field and flow field were built according to thermodynamics and hydrodynamics principles. After calculating the equations, the comparison between the calculated results and measured ones shows the agreement: the difference was less than 3K. It was verified that the temperature distribution and flow distribution could be solved by this method. For this new type of transformer, it can bring some conveniences for the research of temperature characteristics.