Reliability and Network Performance Enhancement by Reconfiguring Underground Distribution Systems
Reliability and Network Performance Enhancement by Reconfiguring Underground Distribution Systems
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DOI：
10.3390/en13184719
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发表时间：
2020-09
期刊：
影响因子：
3.2
通讯作者：
P. Agrawal;N. Kanwar;N. Gupta;K. R. Niazi;A. Swarnkar;N. K. Meena;Jin Yang
中科院分区：
文献类型：
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作者：
P. Agrawal;N. Kanwar;N. Gupta;K. R. Niazi;A. Swarnkar;N. K. Meena;Jin Yang
由于技术-社会原因，当代配电现在正转向地下架空配电线路。可靠性和降损是配电网运行的两个主要目标。由于不接地电缆的故障率除了其物理长度外，还是焦耳加热的函数，因此需要对接地配电系统的可靠性评估进行审查。本文建议对现有的可靠性指标进行适当的修改，使其更适合于井下配电系统。提出了一种多目标网络重构问题，以提高配电系统的可靠性和性能，同时适当地解决负荷需求和可再生能源发电的变化性和不确定性。在标准试验台上的应用结果改变了为架空配电系统定义的可靠性和网络性能指标的众所周知的冲突性质的范例。
Contemporary distributions are now going to underground their overhead distribution lines due to techno-social reasons. Reliability and loss reduction are the two prime objectives for distribution system operation. Since failure rates of ungrounded cables are the function of Joules heating besides their physical lengths, the reliability evaluation of undergrounded distribution systems needs to be reviewed. This paper suggested a suitable modification in existing reliability indices in order to make them more appropriate for underground distribution systems. A multi-objective network reconfiguration problem is formulated to enhance the reliability and performance of distribution systems while duly addressing the variability and uncertainty in load demand and power generation from renewables. The application results on a standard test bench shift the paradigm of the well-known conflicting nature of reliability and network performance indices defined for overhead distribution systems.