Abstract
Access to distributed energy has brought a greater impact on the system. By analyzing the flexibility of the distribution network itself, considering the evaluation indicators of the three dimensions of effect, degree and service, this paper designs a flexible reliability evaluation index system for the distribution network, using principal component analysis and multi-level fuzzy comprehensive evaluation thoughts, a flexible reliability model was established, and calculation examples were analyzed, which is helpful to provide guidance for the development of regional distribution networks.
Highlights
With the continuous increase of wind power and photovoltaic installed capacity, it has brought a greater impact to the system
Luo et al [2] designed a reliability evaluation index system based on the redundant phenomenon of traditional distribution network operation reliability evaluation indicators, starting from the actual experience of users and the construction of the distribution network in Chengdu
Xiao et al [3] comprehensively considered the five dimensions of safety, economy, reliability, adaptability and quality, and used principal component analysis to analyze the internal relationship between the indicators of the distribution network, and calculated the weight of each indicator
Summary
With the continuous increase of wind power and photovoltaic installed capacity, it has brought a greater impact to the system. The effect index better characterizes the quantitative results of the flexible reliability of the distribution network, mainly involving four evaluation indexes such as power supply reliability rate, comprehensive line loss rate, average number of user outages and average outage time [8].
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