| 基于谐波电阻的变压器箔式绕组温升在线修正 |
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| 引用本文： | 弓子钧,张 博,董 婷.基于谐波电阻的变压器箔式绕组温升在线修正[J].电机与控制应用,2023,50(8):18-25. |
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| 作者姓名： | 弓子钧 张 博 董 婷 |
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| 作者单位： | 沈阳工业大学 电气工程学院，辽宁 沈阳 110870 |
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| 基金项目： | 国家自然科学基金项目（52207064） |
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| 摘 要： | 绕组热点温度是配电变压器在线监测的重要指标，而现有的绕组温升在线计算方法未考虑箔式绕组结构产生的影响。通过配电变压器不同谐波下等效电阻比值对箔式绕组结构进行辨识，然后对比线绕式和箔式两种绕组结构发热差异，对一种通过绕组电阻变化计算绕组温升的算法进行了在线修正。该方法提供了一种通过谐波电阻比值预测箔式绕组热点温度的新思路。
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| 关 键 词： | 配电变压器 在线监测 热点温度 绕组结构辨识 谐波电阻 |
| 收稿时间： | 2023/3/20 0:00:00 |
| 修稿时间： | 2023/4/17 0:00:00 |
On-Line Correction for Temperature Rise of Foil Winding in Transformer Based on Harmonic Resistance |
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| GONG Zijun,ZHANG Bo,DONG Ting.On-Line Correction for Temperature Rise of Foil Winding in Transformer Based on Harmonic Resistance[J].Electric Machines & Control Application,2023,50(8):18-25. |
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| Authors: | GONG Zijun ZHANG Bo DONG Ting |
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| Affiliation: | School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, China |
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| Abstract: | Hot-spot temperature of winding is an important indicator for on-line monitoring of distribution transformers. However, the existing on-line calculation methods for winding temperature rise do not consider the influence of foil winding structure. The structure of foil winding is identified by equivalent resistance ratio of distribution transformer under different harmonics, and comparing the heating difference between the wire winding structure and the foil winding structure, an algorithm for calculating the winding temperature rise through changes in winding resistance was online corrected. This method provides a new idea for predicting the hot-spot temperature of foil winding through the ratio of harmonic resistance. |
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| Keywords: | distribution transformer on-line monitoring hot-spot temperature winding structure identification harmonic resistance |
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