A Line Loss Calculation Method for Power Grid Partition Based on Complex Network Community Discovery Algorithm

2019 ◽  
pp. 647-659
Author(s):  
RunQing Bai ◽  
Kai Yi ◽  
Xin He ◽  
WeiZhou Wang ◽  
Geng Wang ◽  
...  
Keyword(s):  
Complex Network ◽  
Calculation Method ◽  
Power Grid ◽  
Community Discovery ◽  
Network Community ◽  
Loss Calculation ◽  
Grid Partition ◽  
Line Loss

scholarly journals Study on Power Grid Partition and Attack Strategies Based on Complex Networks

2022 ◽  
Vol 9 ◽  
Author(s):  
Yanli Zou ◽  
Haoqian Li
Keyword(s):  
Maximum Degree ◽  
Power Grid ◽  
Community Discovery ◽  
Network Attack ◽  
Complex Network Theory ◽  
Grid Partition ◽  
Intentional Attack ◽  
Partition Method ◽  
Discovery Method ◽  
Better Than

Based on the community discovery method in complex network theory, a power grid partition method considering generator nodes and network weightings is proposed. Firstly, the weighted network model of a power system is established, an improved Fast-Newman hierarchical algorithm and a weighted modular Q function index are introduced, and the partitioning algorithm process is practically improved combined with the characteristics of the actual power grid. Then, the partition results of several IEEE test systems with the improved algorithm and with the Fast-Newman algorithm are compared to demonstrate its effectiveness and correctness. Subsequently, on the basis of subnet partition, two kinds of network attack strategies are proposed. One is attacking the maximum degree node of each subnet, and the other is attacking the maximum betweenness node of each subnet. Meanwhile, considering the two traditional intentional attack strategies, that is, attacking the maximum degree nodes or attacking the maximum betweenness nodes of the whole network, the cascading fault survivability of different types of networks under four attack strategies is simulated and analyzed. It was found that the proposed two attack strategies based on subnet partition are better than the two traditional intentional attack strategies.

A Novel Power Loss Calculation Method for Power Magnetic Components in Power Converters

2021 ◽  
Vol 141 (1) ◽  
pp. 69-75
Author(s):  
Yuki Ishikura ◽  
Tatsuya Hosotani ◽  
Masayoshi Yamamoto
Keyword(s):  
Calculation Method ◽  
Power Loss ◽  
Power Converters ◽  
Loss Calculation ◽  
Magnetic Components
Sign in / Sign up

Export Citation Format

Share Document