Topology optimization of cyber network impacts on smart grid adequacy evaluation considering cyber-power interdependency

  • Hossein Askarian Abyaneh
Keywords: Adequacy evaluation, Cyber-power interdependency, Reliability, Smart grids, Cyber network topology, Optimization.

Abstract

Smart grid is comprised of two distinct and intricate cyber-power networks. In smart grids, cyber networks are employed to control, monitor, and protect various kinds of physical structures. Most of proposed methods have considered that cyber components will not fail. This clarification causes error in reliability study; namely in smart grids with advanced cyber network topologies. Based on how cyber failure affects the power system, cyber and power networks may have direct or indirect interdependency. This paper introduces a new analytical reliability assessment methodology, which considers impact of direct cyber network failures on power networks, effectively. The proposed method evaluates the smart grid reliability while taking power and cyber component (monitoring/control/protection devices) failures into account. In this paper, a new procedure based on changing cyber topology structure is suggested. In addition, an applicable cyber network structure is found and employed to improve smart grid reliability. The proposed method is applied to a realistic distribution system in Iran. The results prove that the study of both cyber and power effects on reliability assessment of smart grid are essential to be carried out by system operators. Therefore, an optimized cyber network configuration is introduced as a reliability improvement method.

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Published
2021-11-16
How to Cite
Askarian Abyaneh, H. (2021). Topology optimization of cyber network impacts on smart grid adequacy evaluation considering cyber-power interdependency. Majlesi Journal of Electrical Engineering. Retrieved from http://mjee.iaumajlesi.ac.ir/index/index.php/ee/article/view/3051
Section
Articles