Smart Grid Protection Against Cyber-Attacks using PMUs and DC System Model

Abstract

In recent years, the power grid has evolved from a traditional network to an advanced smart grid, and with the widespread implementation of cyber technologies, the power network has become highly vulnerable to destructive cyber-attacks. A key tool used extensively today to enhance information security and prevent cyber-attacks on the network is Phasor Measurement Units (PMUs). A new method for combating cyber-attacks has been proposed in this article, which focuses on identifying the best locations for PMUs to reduce the likelihood of cyber-attacks on the network. To identify key network points and enhance cybersecurity at these points, a new attack criterion has been proposed. Additionally, network observability has been considered using the Tabu Search Algorithm (TS) in the proposed method. Since the DC system model has less computational volume and faster computation speed, the DC system model has been considered in the proposed method. Simulations performed on IEEE 14, 30, and 57 bus networks demonstrate the ability of the proposed method to deal with cyber-attacks. © 2023 IEEE.