Scholarlink

<p>Transformer winding cumulative deformation (TWCD) can affect the distribution of spatial leakage magnetic field, and then change the distribution of winding electromagnetic force (WEF). Therefore, it is important to research the relationship between TWCD and WEF distribution. In this paper, a fast calculation method for WEF under a certain TWCD based on the response surface method (RSM) is proposed. Firstly, the transient simulation analysis of 1&#xa0;kVA single-phase transformer is carried out through a finite element model. The transformer winding current distribution, the leakage flux and WEF are obtained, which lays the foundation for the subsequent experimental design. Secondly, the Latin hypercube sampling is used for the RSM experimental design. Then, RSM is used to construct the mathematical model between WEF, TWCD and the winding current. Finally, in the WEF measurement experiment, the error between the experimental and simulation data is basically within 10%. This shows that the measured and the simulated values have a high agreement, which verifies the reliability of the proposed method. It provides a technical reference for the rapid calculation of WEF and anti-short-circuit ability evaluation of transformers.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Calculation and analysis of transformer electromagnetic force considering radial winding deformation

  • 期刊论文

  • 发表日期：

    2025年6月9日

查看全文
  • Zhiwei Chen,
  • Yunxiang He,
  • Shulai Wang,
  • Chaoqun Wang,
  • Nianwen Xiang

摘要

Transformer winding cumulative deformation (TWCD) can affect the distribution of spatial leakage magnetic field, and then change the distribution of winding electromagnetic force (WEF). Therefore, it is important to research the relationship between TWCD and WEF distribution. In this paper, a fast calculation method for WEF under a certain TWCD based on the response surface method (RSM) is proposed. Firstly, the transient simulation analysis of 1 kVA single-phase transformer is carried out through a finite element model. The transformer winding current distribution, the leakage flux and WEF are obtained, which lays the foundation for the subsequent experimental design. Secondly, the Latin hypercube sampling is used for the RSM experimental design. Then, RSM is used to construct the mathematical model between WEF, TWCD and the winding current. Finally, in the WEF measurement experiment, the error between the experimental and simulation data is basically within 10%. This shows that the measured and the simulated values have a high agreement, which verifies the reliability of the proposed method. It provides a technical reference for the rapid calculation of WEF and anti-short-circuit ability evaluation of transformers.