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The calculation of no-load performance of transformer core usually adopts statistical method based on past data or whole modeling simulation, ignoring the influence of core joints. If the core is simplified as a whole, the actual electromagnetic characteristics of the joints and the decisive influence of the joints on the no-load loss and no-load current of the core cannot be displayed. Although multi-stack model can calculate a limited number of silicon steel sheets, but it is costly and difficult to be used for the actual core. In this paper, a single stack cyclical model with the even periodic boundary is proposed, and compares the no-load performance of three types of joints, through theoretical analysis and experimental verification, this model has high accuracy.

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Simulation Method and Application of Single Stack Cyclical Model for Core Joints

  • 会议论文

  • 发表日期：

    2025年

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  • Junjie Zhang,
  • Bingbing Shi,
  • Zhiwei He,
  • Xianchun Zha,
  • Xian Zhang

摘要

The calculation of no-load performance of transformer core usually adopts statistical method based on past data or whole modeling simulation, ignoring the influence of core joints. If the core is simplified as a whole, the actual electromagnetic characteristics of the joints and the decisive influence of the joints on the no-load loss and no-load current of the core cannot be displayed. Although multi-stack model can calculate a limited number of silicon steel sheets, but it is costly and difficult to be used for the actual core. In this paper, a single stack cyclical model with the even periodic boundary is proposed, and compares the no-load performance of three types of joints, through theoretical analysis and experimental verification, this model has high accuracy.