Research on identification method of transformer winding material based on vibration characteristic

IF 1.1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC International Journal of Applied Electromagnetics and Mechanics Pub Date : 2024-02-01 DOI:10.3233/jae-230109

Xusheng Qian, Gaojun Xu, Xuancheng Zhang, Meng Miao, Yu Zhou

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Abstract

At present, there are shoddy transformers in the market, of which the windings are replaced by aluminum and copper clad aluminum. The commissioning of these transformers may cause poor power supply performance and excessive winding heating. The existing detection methods of windings are complex, time-consuming to operate and destructive. Therefore, a winding material identification method based on vibration characteristics is proposed. Firstly, the vibration accelerations of transformer cores and windings with different winding materials are theoretically derived. Furthermore, through the coupling simulation of magnetic field and structure field of distribution transformers, the calculated vibration characteristics of copper, aluminum, and copper clad aluminum are verified. Finally, by comparing the time domain, the frequency domain and time-frequency domain of acceleration signals, preliminary identification of winding materials is conducted, which lays a theoretical foundation for establishing a precise identification model for winding materials in the future. This work provides guarantee for the safe operation of the distribution network.

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基于振动特性的变压器绕组材料识别方法研究

目前，市场上存在用铝和铜包铝代替绕组的伪劣变压器。这些变压器在调试过程中可能会导致供电性能不佳和绕组发热过大。现有的绕组检测方法复杂、操作耗时且具有破坏性。因此，本文提出了一种基于振动特征的绕组材料识别方法。首先，从理论上推导出不同绕组材料的变压器铁芯和绕组的振动加速度。此外，通过对配电变压器磁场和结构场的耦合模拟，验证了计算得出的铜、铝和铜包铝的振动特性。最后，通过加速度信号时域、频域和时频域的比较，对绕组材料进行了初步识别，为今后建立绕组材料精确识别模型奠定了理论基础。这项工作为配电网的安全运行提供了保障。

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来源期刊

International Journal of Applied Electromagnetics and Mechanics 物理-工程：电子与电气

CiteScore

1.70

自引率

0.00%

发文量

100

审稿时长

4.6 months

期刊介绍： The aim of the International Journal of Applied Electromagnetics and Mechanics is to contribute to intersciences coupling applied electromagnetics, mechanics and materials. The journal also intends to stimulate the further development of current technology in industry. The main subjects covered by the journal are: Physics and mechanics of electromagnetic materials and devices Computational electromagnetics in materials and devices Applications of electromagnetic fields and materials The three interrelated key subjects – electromagnetics, mechanics and materials - include the following aspects: electromagnetic NDE, electromagnetic machines and devices, electromagnetic materials and structures, electromagnetic fluids, magnetoelastic effects and magnetosolid mechanics, magnetic levitations, electromagnetic propulsion, bioelectromagnetics, and inverse problems in electromagnetics. The editorial policy is to combine information and experience from both the latest high technology fields and as well as the well-established technologies within applied electromagnetics.