Original scientific paper

https://doi.org/10.17559/TV-20150427180553

Electric power network fractal and its relationship with power system fault

Hui Hou ; School of Automation, Wuhan University of Technology, 430070 Wuhan, China
Aihong Tang ; School of Automation, Wuhan University of Technology, 430070 Wuhan, China
Hualiang Fang ; School of Electrical Engineering, Wuhan University, 430072 Wuhan, China
Xiaoling Yang ; College of Science, Hubei University of Technology, 430068 Wuhan, China
Zhaoyang Dong ; School of Electrical & Information Engineering, The University of Sydney, 2008 Sydney, NSW Australia

Abstract

Electric power system network is with fractal characteristic. It has the basic feature of a complex network: self-similarity. The authors first calculated the fractal dimension values for several electric power grids, including WSCC (Western Systems Coordinating Council) 9 bus system, IEEE14 bus system, IEEE 30 bus system, IEEE 39 bus system, IEEE 118 bus system and IEEE 300 bus system; as well as some real power grids such as China Southern Power Grid (CSPG) 500 kV main power grid, Guangdong province 500 kV main power grid, and Guangdong province 500 kV and 220 kV mixed power grid, etc. Based on the power grid fractal value, a comparison and relationship between the fractal value and power system failure rate is analysed. The basic conclusion is that for the same voltage level, the larger the scale is, the larger fractal value and higher failure rate the power grid will possibly have. For the same scale, the denser the power grid, the larger fractal value and higher failure rate the power grid will probably have. The conclusions provide a new vision on the power system vulnerability status judgment from an interdisciplinary view and lead to a new research direction.

Keywords

complex system; electric power network; failure rate; fractal; power grid

Hrčak ID:

139745

URI

https://hrcak.srce.hr/139745

Publication date:

15.6.2015.

Article data in other languages: croatian

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