Mayr电弧模型下GIS中快速暂态过电压的仿真分析

doi:10.16628/j.cnki.2095-8188.2024.02.005

电器与能效管理技术 ›› 2024, Vol. 0 ›› Issue (2): 28-32.doi: 10.16628/j.cnki.2095-8188.2024.02.005

Mayr电弧模型下GIS中快速暂态过电压的仿真分析

杨帆, 高有华

沈阳工业大学, 辽宁沈阳 110870

收稿日期:2023-09-08 出版日期:2024-02-28 发布日期:2024-03-28
作者简介:杨帆(1996—),男,硕士研究生,研究方向为高压电力装备理论与绝缘分析。|高有华(1966—),女,教授,研究方向为高压电力装备理论与绝缘分析。

Simulation Analysis of Fast Transient Overvoltage in GIS Under Mayr Arc Model

YANG Fan, GAO Youhua

Shenyang University of Technology, Shenyang 110870, China

Received:2023-09-08 Online:2024-02-28 Published:2024-03-28

摘要/Abstract

摘要：

SF₆气体绝缘封闭组合开关(GIS )中隔离开关进行分合母线时,产生快速暂态过电压(VFTO),幅值高且上升速率极快,威胁GIS及相邻设备的绝缘。选取某800 kV GIS隔离开关分合母线的试验电路为研究对象,采用电磁暂态程序(EMTP/ATP)进行建模仿真,隔离开关燃弧时采用Mayr电弧模型,分析其对VFTO的影响,得出考虑Mayr电弧模型时操作隔离开关、断路器侧隔离开关及变压器侧隔离开关的电压波形,并与考虑时变电阻模型的VFTO进行对比。对VFTO波形进行离散傅里叶分析,得到过电压频率、幅值的变化特征,研究结果为GIS绝缘设计提供参考。

关键词: SF₆气体绝缘封闭组合电器(GIS), 快速暂态过电压(VFTO), Mayr电弧模型, 傅里叶分析

Abstract:

When the disconnector in SF₆ gas insulated switchgear (GIS) is used to open and close the busbar, a very fast transient overvoltage (VFTO ) with high amplitude and extremely fast rise rate is generated, which threats the insulation of GIS and adjacent equipment.The testing circuit of an 800 kV GIS disconnector switching on and off busbar is selected as the research object.The electromagnetic transient program (EMTP/ATP) is used for modeling and simulating, the Mayr arc model is used when the disconnector is ignited, and its influence on VFTO is analyzed.The voltage waveforms of the disconnector, circuit breaker side disconnector and transformer side disconnector considering the Mayr arc model are obtained,compared with the VFTO considering the time-varying resistance model. Discrete Fourier analysis of VFTO waveform is carried out to obtain the variation characteristics of overvoltage frequency and amplitude, and the research results provide a reference for GIS insulation design.

Key words: SF₆ gas insulated switchgear (GIS), very fast transient overvoltage (VFTO), Mayr arc model, Fourier analysis

中图分类号:

TM201.2

杨帆, 高有华. Mayr电弧模型下GIS中快速暂态过电压的仿真分析[J]. 电器与能效管理技术, 2024, 0(2): 28-32.

YANG Fan, GAO Youhua. Simulation Analysis of Fast Transient Overvoltage in GIS Under Mayr Arc Model[J]. LOW VOLTAGE APPARATUS, 2024, 0(2): 28-32.

图/表 4

参考文献 12

[1]	左帆, 钱超, 万杰枫, 等. GIS综合在线监测系统设计[J]. 电器与能效管理技术, 2015(20):28-31.
[2]	陈维江, 颜湘莲, 王绍武, 等. 气体绝缘开关设备中特快速瞬态过电压研究的新进展[J]. 中国电机工程学报, 2011, 31(31):1-11.
[3]	尹晓芳, 尹力, 刘广雄. 封闭式组合电器隔离开关产生的过电压[J]. 中国电机工程学报, 2002(7):111-114.
[4]	高小庆, 陈晓军, 鲍光海. 考虑故障电弧电流高频特征的阻抗电弧模型[J]. 电器与能效管理技术, 2021(3):6-7.
[5]	尚振球, 汪瑶同. 电弧“黑盒”模型参数的准确确定方法[J]. 高压电器, 1994(1):33-35.
[6]	刘蕾, 李华良, 谢瑞涛. 隔离开关开合小电流仿真研究中电弧电阻模型探讨[J]. 电工技术, 2021(18):126-128,140.
[7]	杜翰文. 800kVGIS中陡波过电压及隔离开关暂态电场研究[D]. 沈阳: 沈阳工业大学, 2018.
[8]	IKEBE K, SHIMOMURA T, IYODA I. Simulation technology for 1000 kV power systems[J]. Mitsubishi Electric Advance, 1996(77):35-41.
[9]	MA G M, LI C R, CHEN W J, et al. A reliable wide-band-width VFTO sensor based on surface-mounted devices[J]. IEEE Transactions on Power Delivery, 2013, 28(3):1839-1846. doi: 10.1109/TPWRD.2013.2257881
[10]	PINCHES D S, AL-TAI M A. Very fast transient overvoltage generated by gas insulated substations: International Universities Power Engineering Conference[C]. 2008.
[11]	SHI B Z. Differential integration method for measuring fast transient overvoltage in gas insulated substation[J]. Chinese Society for Electrical Engineering, 1999(9):59-61.
[12]	陈玮任, 张文斌, 王立哲, 等. 基于快速傅里叶变换的VFTO实测波形分析[J]. 电子科技, 2021, 34(3):65-70.

Mayr电弧模型下GIS中快速暂态过电压的仿真分析

Simulation Analysis of Fast Transient Overvoltage in GIS Under Mayr Arc Model

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