Distributed Topology Inference for Electric Power Grids

Honeth, Nicholas; Nordström, Lars

doi:10.1109/tii.2017.2740933

Cited by 7 publications

(1 citation statement)

References 44 publications

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“…If the adjacent lines do not have sufficient transmission margin to absorb the transferred power flow [5][6], the outage of a heavyload line will lead to cascading failure [7], and eventually develop into a large-scale serious accident. Therefore, finding a fast algorithm to identify the lines with strong correlation and further analyzing the impact of outages on other lines is particularly important in formulating more reasonable fault handling strategies to prevent the occurrence of blackouts [8,9]. According to the operation experience of the power grid, there are weak links in the power grid that are easy to exceed the power flow limit [10], and the weak links are often the connecting lines between the power supply area and the load area [11].…”

Section: Index Terms Key Transmission Sections，power Grid Operationmentioning

confidence: 99%

Fast Search Algorithm for Key Transmission Sections Based on Topology Converging Adjacency Matrix

et al. 2020

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The traditional method of searching transmission section generally has the problem of omission and time-consuming. A topology converging algorithm of power grid adjacency matrix is proposed in this paper. It aggregates neighboring buses based on a simple matrix transformation rule, and identify key transmission sections based on matrix operations and power flow distribution factors. This method has the advantage of no presetting the sub-zone, which can avoid the simplification of the grid topology in the sub-zone and improve the calculation accuracy. The complex logical operations of the traversal algorithm adopted by most of traditional methods can be avoided, and the calculation speed can be effectively improved. Besides, the algorithm also has a memory characteristic which can be applied to the online search of key transmission sections. The results of several IEEE test systems show the effectiveness of the proposed algorithm.

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