一种变压器匝间短路故障建模方法、系统、设备及介质

By combining discrete magnetic networks and a three-dimensional electrostatic field model with magnetomotive force equilibrium boundary conditions, a transformer inter-turn short-circuit fault model is constructed. This solves the accuracy problem of traditional models in simulating inter-turn short-circuit faults and achieves an accurate description of the transformer's internal electromagnetic characteristics and nonlinear saturation.

CN122263198BActive Publication Date: 2026-07-17XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN JIAOTONG UNIV
Filing Date
2026-05-26
Publication Date
2026-07-17

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Abstract

本发明属于电力设备领域，公开了一种变压器匝间短路故障建模方法、系统、设备及介质，包括：建立变压器铁芯与绕组的二维几何模型，将二维几何模型离散化划分为多个磁网络单元，得到离散磁网络模型；构建绕组的三维静电场实体模型，计算绕组线匝间及对地的分布电容矩阵；在离散磁网络模型中设定短路网格点，将短路网格点并联接入金属性短路支路模型，得到短路闭合支路；获取变压器电路，基于分布电容矩阵，构建变压器电路与离散磁网络模型交互的耦合关系，构建变压器匝间短路故障模型。能够准确描述变压器内部空间电磁分布特征和铁芯局部非线性饱和特性。
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