Impact of distributed generators on arcing faults in distribution networks

Impact of distributed generators on arcing faults in distribution networks
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分布式发电机对配电网电弧故障的影响

DOI:
10.1049/iet-gtd.2009.0681
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发表时间:
2011
期刊:
IET Generation, Transmission & Distribution
影响因子:
--
通讯作者:
Ciric R
Ciric R
中科院分区:
--
文献类型:
--
作者:
Ciric R

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故障等级的增加是分布式发电并网的主要问题之一。为了准确计算分布式电源穿透程度较高的配电网的故障电流,必须建立一个包含故障点上存在的电弧的实际故障模型。给出了DG对这类弧形故障影响的评估结果。研究的意义在于,故障模型中包含了电弧元,考虑了附加的非线性电阻。由于弧阻是故障电流的非线性函数,采用一种新的迭代算法解决了同时计算故障电流和弧阻的问题。在本工作中,考虑了一个典型的中压配电网。给出并讨论了IEEE-34配电网含分布式发电机的同时故障分析和弧阻计算的结果。
Increased fault level is one of the main concerns connected to the integration of distributed generation (DG) into distribution networks. To accurately calculate fault currents in distribution systems with a high penetration of DG, a realistic fault model must be developed that includes the electrical arc existing at the fault point. The results of an assessment of the impact of DG on such arcing faults are presented. The significance of the study is that the fault model includes the electrical arc element, which brings additional non-linear resistance into consideration. Since the arc resistance is a non-linear function of the fault current, the problem of simultaneous fault currents and arc resistance calculation has been tackled using a novel iterative algorithm. In this work, a typical medium voltage distribution network is considered. Results of the simultaneous fault analysis and arc resistance calculation in the IEEE-34 distribution network with a distributed generator are presented and discussed.
具有宏、监视器和互组直接补偿的故障程序
DOI: 10.1109/tpas.1985.323462
发表时间: 1985
期刊: IEEE Power Engineering Review
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