一种抑制GIS中VFTO的新方法——螺旋管阻尼母线

2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST) Pub Date : 2019-10-01 DOI:10.1109/ICEPE-ST.2019.8928697

Chao Li, Xixiu Wu, Xin Yang, Yu Feng, Huan Wang, Hui Hou

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引用次数: 0

摘要

本文提出了一种抑制GIS中快速瞬态过电压的新方法——螺旋管阻尼母线。分析了新方法抑制VFTO的机理。并介绍了阻尼母线的结构特点。在此基础上，搭建了550kV GIS试验平台，对阻尼母线的减振效果进行了验证。实验结果表明，阻尼母线具有良好的抑制VFTO的效果，可将VFTO的最大幅值从2.42p.u处衰减。至1.49 p.u, SF6气体分解的次数和持续时间也显著减少。测量结果还表明，阻尼母线具有抑制VFTO高频分量的良好性能。阻尼母线的优越性能表明它是一种具有广阔工程应用前景的方法。

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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A Novel Method of Suppressing VFTO in GIS –Spiral Tube Damping Bus-bar

This paper presents a novel method which is called spiral tube damping bus-bar to suppress VFTO (very fast transient overvoltage) in GIS. The suppressing mechanism of the new method to restrain VFTO is analyzed. And the structure characteristics of damping bus-bar is introduced as well. Furthermore, a 550kV GIS test platform is set up to check the mitigation effect of the damping bus-bar. The experimental results show that the damping bus-bar exhibits excellent suppressing effect of VFTO, which can attenuate the maximum amplitude of VFTO from 2.42p.u. to 1.49 p.u. And the number of SF6 gas breakdown and its duration also decrease dramatically. The measurement results also reveal that damping bus-bar has another favorable ability which can restrain the high frequency component of VFTO. All the superior performance of damping bus-bar indicate it is a method with broad prospects and bright future in engineering application.

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来源期刊

2019 5th International Conference on Electric Power Equipment - Switching Technology (ICEPE-ST)

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