基于ADPSS和Sobol的弧光接地暂态特征分析与影响因素关键性辨识*

doi:10.11985/2020.03.013

电气工程学报 ›› 2020, Vol. 15 ›› Issue (3): 97-104.doi: 10.11985/2020.03.013

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基于ADPSS和Sobol的弧光接地暂态特征分析与影响因素关键性辨识^*

穆永保¹(),岳国良²,闫柯柯¹,王璐¹,吴伟丽³(),奚涛⁴,曹君芳⁵

1.国网邯郸供电公司邯郸 056035
2.国网河北省电力有限公司石家庄 050000
3.西安科技大学电气与控制工程学院西安 710054
4.安徽正广电电力技术有限公司合肥 230088
5.河北伟正电力技术有限公司邯郸 056002

收稿日期:2020-06-14 修回日期:2020-08-11 出版日期:2020-09-25 发布日期:2020-10-28
通讯作者: 吴伟丽 E-mail:185680046@qq.com;wwllxm@163.com
作者简介:穆永保,男,1982年生,硕士,高级工程师。主要研究方向为地电位监测和电磁兼容。E-mail：185680046@qq.com
基金资助:
* 国家电网公司科技资助项目(电容器组开断过电压抑制方法研究,SGHEHD00JXJS1900653)

Analysis of Transient Characteristics of Arc Grounding and Identification of Key Factors Based on ADPSS and Sobol

MU Yongbao¹(),YUE Guoliang²,YAN Keke¹,WANG Lu¹,WU Weili³(),XI Tao⁴,CAO Junfang⁵

1. State Grid Handan Power Supply Company, Handan 056035
2. State Grid Hebei Electric Power Co., Ltd., Shijiazhuang 050000
3. School of Electrical and Control Engineering, Xi’an University of Science and Technology, Xi’an 710054
4. Anhui Zhengguang Radio and Television Power Technology Co., Ltd., Hefei 230088
5. Hebei Weizheng Electric Power Technology Co., Ltd., Handan 056002

Received:2020-06-14 Revised:2020-08-11 Online:2020-09-25 Published:2020-10-28
Contact: WU Weili E-mail:185680046@qq.com;wwllxm@163.com

摘要/Abstract

摘要：

准确把握间歇性电弧接地故障暂态特征和关键性影响因素可为防治单相电弧故障提供必要参考。为此,在Cassie-Mayr电弧模型基础上构建单相接地故障全电弧模型,以期客观地复现弧光接地过程;其次,考虑了包括电源初相角、故障时刻、故障点位置、线路参数等在内的共6个因素的影响,遍历各因素所有可能取值与组合,研究了不同工况下的弧光接地暂态特征;最后,以新疆某10 kV配电网为例,构建ADPSS仿真模型,遍历所有实际可能工况模拟弧光接地过程,分析过电压情况,并建立影响因素与弧光接地过电压之间的关联性模型,量化并对比了各影响因素的作用程度,发现故障点位置、故障类型、故障相别时关键影响因素。该研究成果可为治理弧光接地过电压故障提供依据。

关键词: 弧光接地, Cassie-Mayr电弧模型, 影响因素, 关键性辨识

Abstract:

It can provide necessary reference for the prevention and control of single-phase arc fault to grasp the transient characteristics and key influencing factors of intermittent arc ground fault accurately. Therefore, based on the Cassie-Mayr arc model, the whole arc model of single-phase grounding fault is constructed in order to objectively reproduce the arc grounding process. Secondly, considering the influence of six factors, including the initial phase angle of power supply, fault time, fault point location, fault type, fault phase, etc., all possible values and combinations of all factors are traversed, and the arc grounding temporary under different working conditions is studied. Finally, taking a 10 kV distribution network in Xinjiang as an example, the ADPSS simulation model is constructed to simulate the arc grounding process under all practical possible working conditions, analyze the transient characteristics of the over-voltage, establish the correlation model between the influencing factors and the arc grounding over-voltage, quantify and compare the effect degree of each influencing factor, and find the key points of fault location, fault type and fault phase influencing factors. The research results can provide basis for the control of arc grounding over-voltage fault.

Key words: Arc grounding, Cassie-Mayr arc model, influencing factors, critical identifications

中图分类号:

TM714

穆永保,岳国良,闫柯柯,王璐,吴伟丽,奚涛,曹君芳. 基于ADPSS和Sobol的弧光接地暂态特征分析与影响因素关键性辨识^*[J]. 电气工程学报, 2020, 15(3): 97-104.

MU Yongbao,YUE Guoliang,YAN Keke,WANG Lu,WU Weili,XI Tao,CAO Junfang. Analysis of Transient Characteristics of Arc Grounding and Identification of Key Factors Based on ADPSS and Sobol[J]. Journal of Electrical Engineering, 2020, 15(3): 97-104.

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影响因素	取值范围
故障位置/km	0~10
中性点电阻	不接地、小电阻(0~30 Ω)
线路构成(%)	电缆线路比例10~70
故障接地电阻/Ω	0~500
电源初相角/(°)	0~180
故障时刻/s	1.0~1.1

基于ADPSS和Sobol的弧光接地暂态特征分析与影响因素关键性辨识^*

Analysis of Transient Characteristics of Arc Grounding and Identification of Key Factors Based on ADPSS and Sobol

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