Evaluation method of active distribution network resilience considering the power supply recovery and interaction of subareas

2021 ◽  
Author(s):  
Weiyu Ming ◽  
Shijie Cheng ◽  
Jie Tian ◽  
Yan Li ◽  
Changshu Tan
Keyword(s):  
Power Supply ◽  
Evaluation Method ◽  
Distribution Network ◽  
Network Resilience ◽  
Active Distribution Network

scholarly journals Evaluation Method of Distribution Network Resilience Focusing on Critical Loads

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 61633-61639 ◽  
Author(s):  
Diansheng Luo ◽  
Yongwei Xia ◽  
Yuanyuan Zeng ◽  
Canbing Li ◽  
Bin Zhou ◽  
...  
Keyword(s):  
Critical Loads ◽  
Evaluation Method ◽  
Distribution Network ◽  
Network Resilience

scholarly journals A comprehensive evaluation method for the security situation of distributed power supply in distribution network

2021 ◽  
Vol 236 ◽  
pp. 01024
Author(s):  
Bo Wu
Keyword(s):  
Power Supply ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Distribution Network ◽  
Entropy Weight ◽  
Analytic Hierarchy ◽  
Chi Square ◽  
Distributed Power ◽  
Assessment Index ◽  
Comprehensive Evaluation Method

In order to study the influence of distributed power access on the security state of distribution network, a comprehensive evaluation method for the security state of distribution network including distributed power access was proposed.Based on the output model and load model of photovoltaic power supply, the security situation assessment index system of distributed power supply access distribution network is established. Then combined with fuzzy analytic hierarchy process and entropy weight method, the composite weight of each index is obtained, and the combined weight is optimized based on chi-square distance. Finally, the evaluation method based on ER algorithm (Evidential Reasoning) is proposed. Simulation results verify the effectiveness and accuracy of the proposed method.

scholarly journals Fault location method of active distribution network based on graph theory and matrix algorithm

2021 ◽  
Vol 2121 (1) ◽  
pp. 012035
Author(s):  
Yalei Li ◽  
Xiaohong Zhang
Keyword(s):  
Graph Theory ◽  
Power Supply ◽  
Power Distribution ◽  
Network Flow ◽  
Large Scale ◽  
Fault Location ◽  
Distribution Network ◽  
Location Method ◽  
Active Distribution Network ◽  
Network Fault

Abstract In view of the large scale distributed power distribution network, distribution network from the traditional single main transformer power supply system becomes more complex broken power supply network, the trend of the distribution network flow and network frame produced change, failure fault feature information of great change, the traditional distribution network fault location method can not accurately obtain the location of the fault zone, the low accuracy of fault location, the error bigger problem a new fault location method of active distribution network combining graph theory and matrix was proposed. According to the knowledge of graph theory, the distribution network is simplified to topology diagram and described in the form of matrix, and then the fault judgment matrix is obtained through a series of matrix addition operation, and the type of fault interval can be identified accurately and quickly by combining the fault criterion table. The simulation results show that this method is simple in principle, fast and effective in criterion, suitable for the flexible operation mode of active distribution network structure, can accurately and quickly determine the fault segment, and can meet the requirements of complex distribution network fault location.

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