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引用次数: 1
摘要
本文研究并优化了磁分流的设计，以降低电力变压器产生的杂散损耗和温度。首先建立二维模型，对比分析不同结构屏蔽漏磁分布，并以OSFPSZ-200kV a /230kV电力变压器为例，考虑不同屏蔽结构对漏磁分布的影响，建立三维有限元模型。采用场路耦合法对电力变压器的杂散损耗和温度进行计算，得到安全运行所需的最佳屏蔽结构。最后，通过实验结果验证了不同屏蔽结构下三相电力变压器杂散损耗和温度的仿真结果。
Study of Loss and Temperature Considering Different Shielding Structure in Power Transformer
This paper investigates and optimizes the magnetic shunts design to reduce the generated stray losses and temperature in power transformers. First, establish a 2D model, compare and analyze the magnetic leakage distribution of shielding with different structures, and further A 3D FEM model is established based on the OSFPSZ-200kV A/230kV power transformer, considering the influence of magnetic flux leakage distribution with different shielding structure. Calculation stray loss and temperature of power transformer with field-circuit coupling method to obtain the optimal shield structure, which are required for safe operation. Finally, the simulation results of the stray loss and temperature of the three-phase power transformer verified by the experimental results under the different shielding structure.
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