大型电力变压器漏磁场的ANSYS有限元分析

变压器的漏磁场问题既是变压器设计、制造中,也是影响变压器运行性能的大问题。传统计算方法根据经验公式估算,误差相当大,为使计算、分析更加准确,有限元法被引进到漏磁场计算、分析中。运用电磁场理论和有限元法,对110 kV及以上电力变压器的漏磁场进行系统的研究,分别建立二维和三维漏磁场计算模型,准确计算油箱中的漏磁场分布情况。结果表明,在油箱壁的长和宽方向中离变压器绕组最近处的漏磁密最大。因此,数值方法的引入,改进了变压器的计算和设计,并使其优化设计成为可能。

The Analysis of Leakage Magnetic Field of 110 kV and Above Electric Transformer

The problem of the leakage magnetic field of transformer is big problem in design and manufacture of transformer,and also it is big problem that deteriorate the transformer's performance.Traditional calculation method often estimate the result according to the empirical formula,and so it lead to considerable error.In order to make it more accurate in calculation and analysis,the finite element analysis is used into them.By using FEM and finite element method,the detailed analysis is given,leakage magnetic f...