Reduction of Frequency Disruption During Cyber-Attack in the Power System

Abstract

This paper proposes an effective stable system model, called as ESSM for providing stable frequency in power system during cyber-attack. The proposed ESSM is formulated by four different controllers, such as, LFC, AGC, AGC-PID and LQR that are implemented in a common system model individually. The focusing issue of this work is that a new numerical problem is solved by the implementation of the proposed model that has been run by incorporating the above four different controllers. The purpose of considering the new problem solution in our proposed ESSM is to achieve an effective stable system model. According to our knowledge, nobody has solved such problem before that has been solved in this paper. In this work, to achieve the proposed ESSM, the individual system models with four different controllers have been simulated in MATLAB using SIMULINK tool and the results are compared in terms of frequency deviation and settling time. The simulation results exhibit that, all the system models work well to minimize the frequency disturbance within very short time. The comparisons among the four models show that, LQR performs better compared to the other models in terms of reducing settling time as well as reducing frequency deviation.