Exploring the Impact of Frequency Deviation Due to Generation Loss or Overload Situation on the Standard Electrical Power System

Abstract

Maintaining the stability of an electrical power system necessitates imposing stringent operational boundaries on grid frequency. Variations and external influences have the potential to induce significant frequency shifts, thereby necessitating heightened control measures. Power systems typically function at a frequency of 50 Hz. Nevertheless, disruptions such as generation loss, abrupt load surges, or system faults can lead to disturbances and deviations, ultimately destabilizing the frequency of these electrical power systems. Consequently, there is a necessity to investigate and enhance the frequency stability of electrical power systems in the face of such disturbances. In this paper, a standard Institute of Electrical and Electronics Engineers' (IEEE) 9-bus system that simulated in MATLAB-Simulink was used, with the amount of generation is decreasing in the first scenario, and the second scenario, when the load is more than the available generation. Both Scenarios cause dropping the grid frequency. The results demonstrate the behavior of power systems under normal and abnormal conditions and stability margin limits.