Citation

Che Y, Jia J, Zhao Y, He D, Cao T. Safety Sci. 2019; 113: 144-153.

Copyright

(Copyright © 2019, Elsevier Publishing)

DOI

10.1016/j.ssci.2018.11.015

PMID

unavailable

Abstract

As urban power grid is getting more and more complex, it is necessary to improve the original evaluation method and also a more convenient and accurate vulnerability assessment of urban power grid is needed. Firstly, the evaluating vulnerability index system of urban power grid is established by Analytic Hierarchy Process (AHP) from four aspects of composition of power supply, grid structure, grid operation and important transmission channels. Secondly, according to the effect and position of index in evaluation system, the weights of different indexes are calculated by using the Artificial Neural Network (ANN). Thirdly, aiming at the problem of different dimensions of input indexes, a nondimensionalized scoring standard is proposed to form a complete assessment system. Finally, the vulnerability assessment of urban power grid is carried out by taking a city as an example. The paper puts forward the weaknesses and defects of the urban power grid after analyzing the results, which lays a theoretical foundation for further optimization and upgrading.

Language: en

Keywords

Analytic hierarchy process; Artificial neural network; Urban power grid; Vulnerability assessment