综合考虑中性点接地方式和网架结构的配电网供电可靠性的评估

赵旭阳; 王聪; 牛胜锁; 刘国平; 赵杰

赵旭阳,王聪,牛胜锁,刘国平,赵杰.综合考虑中性点接地方式和网架结构的配电网供电可靠性的评估[J].电测与仪表,2019,56(18):49-56.
ZhaoXuyang,WangCong,NiuShengsuo,LiuGuoping,ZhaoJie.Evaluation of power supply reliability of distribution network considering neutral grounding mode and grid structure[J].Electrical Measurement & Instrumentation,2019,56(18):49-56.

综合考虑中性点接地方式和网架结构的配电网供电可靠性的评估

Evaluation of power supply reliability of distribution network considering neutral grounding mode and grid structure

DOI：

中文关键词: 关键词：中性点接地方式单相接地故障跳闸率模型网架结构可靠性评估

英文关键词:Keywords: Neutral grounding method Single phase to ground fault Trip rate model Grid structure Reliability evaluation

基金项目:

作者中文名	作者英文名	单位
赵旭阳	ZhaoXuyang	华北电力大学
王聪	WangCong	国网河北省电力有限公司石家庄供电分公司
牛胜锁	NiuShengsuo	华北电力大学
刘国平	LiuGuoping	国网河北省电力有限公司石家庄供电分公司
赵杰	ZhaoJie	国网河北省电力有限公司石家庄供电分公司

摘要点击次数: 1474

中文摘要:

摘要:本文通过综合考虑不同中性点接地方式下发生单相接地故障时线路跳闸的原因，建立了不同中性点接地方式下线路故障可靠性概率模型；然后，根据三种典型的配电网网架结构的特点，考虑网架结构的不同会对用户供电产生的影响；最后，建立综合考虑中性点接地方式和网架结构的配电网可靠性评估模型，以树干式和环式配电网为例，进行计算，得出两种典型的配电网接线在不同的中性点接地方式下的供电可靠性，同时客观评价了两种中性点接地方式下配电网供电可靠性水平。

英文摘要:

Abstract: In this paper, the reliability probability model of line fault under different neutral grounding modes is established by synthetically considering the causes of line tripping under different neutral grounding modes. According to the characteristics of three typical distribution network structures, considering the influence of different grid structures on the power supply to users, finally, the reliability evaluation model of distribution network considering the neutral grounding mode and the grid structure is established. Taking trunk type and ring type distribution network as examples, the reliability of two typical distribution network connections under different neutral grounding modes is obtained, and two neutral grounding modes are objectively evaluated. Lower distribution network power supply reliability level.

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