摘要变压器主要结构是由铁芯和两个或两个以上的线圈绕组组成的。铁芯，线圈材料选取不同以及变压器尺寸容量的选择都对变压器的性能有重要影响。我们必须合理计算选择，才能在满足电力系统要求的基础上节约成本，并减少损耗。所以在理论基础上我们需要对变压器进行电磁分析，直观的测试比较从而获得结果。虽然现在还没有一款针对变压器的可以完全精确计算检测的软件，但通过ansys软件的有限元分析还是可以对磁场进行简单的分析。该论文主要内容分为三个部分：64490

（1）根据给定的技术参数，通过理论公式手动计算出变压器的材料，尺寸，匝数等数据。

（2）重点针对该变压器进行二维仿真分析，测出在空载情况下的磁场分布和磁感应强度，次级电压以及线圈阻抗。并且比较理论计算与仿真下的结果。

（3）分别改变铁芯材料和尺寸，观察磁场分布变化，讨论各个因素对变压器性能的影响。

毕业论文关键词 变压器  ansys仿真 电磁分析 材料尺寸

毕业设计（论文）外文摘要

Title  Performance analysis of power transformer 

Abstract

The main structure of transformer is made up of iron core and two or more than two of coil winding. Iron core, coil material selection of different size and transformer capacity selection has important influence on the performance of the transformer. we must rational calculate and choise,to save cost and reduse wear and tear on the basis of meeting the requirements of power system. So we need to have an electromagnetic analysis of transformer on the basis of theory, the visual test is to obtain the results. But every time design entity is waste of energy and money, so I need through the software simulation. Although there is no software can completely accurate calculate in view of the transformer, but through ansys software of finite element analysis can have simple analysis of magnetic field. The paper main content is pided into three parts:

（1）according to the given parameters, through the theoretical formula to manually calculate the transformer of the material, size, number of turns and so on.、

（2）focusing on the transformer for two-dimensional simulation analysis, measured under the condition of no-load magnetic field distribution and magnetic induction intensity, secondary voltage and coil impedance. And compared with theoretical calculation results of the simulation.

（3）change the core material and size respectively, observing change magnetic field distribution, and discussed various factors that affect the performance of the transformer.

Keywords  transformer Ansys simulation  electromagnetic analysis  material size 

1 绪论 1

1.1 变压器研究意义 1

1.2 变压器研究现状与趋势 2

1.3有限元分析技术 3

2 变压器设计原理及电磁场分析原理 4

2.1 变压器原理模型 4

2.2 变压器设计计算基础 6

2.3 电学有限元分析基本概念 6

2.3.1 麦克斯韦方程 7

2.3.2 边界条件 8

3 电路-磁路耦合分析 9

3.1 耦合场分析的定义 9

3.2 耦合场分析的类型 9

3.3电路-磁路耦合分析的具体步骤 10