大容量特高压自耦金属结构漏磁控制及杂散损耗计算研究

2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO) Pub Date : 2021-10-15 DOI:10.1109/AEERO52475.2021.9708238

Xiangdong Yu, Yang Yu, Jian-wen Xu, Yong Liu, Renlei Liu, Xiaoyang Zhang

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引用次数: 1

摘要

以我公司研发制造的世界上第一台单列容量最大的50MVA的750 kV特高压自耦变压器为研究对象，采用先进的有限元分析技术，计算结构部件上的三维漏磁场和杂散损耗。为防止局部过热，减少杂散损耗，重点研究了有源部分磁分流与yoke阶的匹配距离、夹紧架的开槽以及槽屏蔽的布置方案。试验结果验证了优化方案的有效性，一致性好，计算精度满足工程应用要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Research on Leakage Flux Control and Stray Loss Calculation on Metal Structure of Ultra High Voltage Autotransformer with Large Capacity

Regarding the first 750 kV ultra high voltage (UHV) autotransformer with the largest single column capacity of 50MVA all around the world as the research object, which is developed and manufactured by our company, the advanced finite element analysis technology is adopted to calculate the three dimensional leakage magnetic field and stray losses on the structural components. In order to prevent local overheating and decrease stray loss, the matching distance between magnetic shunts of active part and yoke step, the slotting of clamping frame and the arrangement scheme of tank shielding are mainly studied. The effectiveness of the optimal scheme is verified by test results, showing that it has good consistency and the calculation accuracy meets the requirements of engineering application.

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2021 International Conference on Advanced Electrical Equipment and Reliable Operation (AEERO)

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