Modern Power System Frequency Response Evaluation with Virtual Power Plant Penetration

New power systems based on virtual power plants (VPPs) will expand in the future, so it is of crucial importance for system operators to analyze the frequency behavior of these systems compared to current systems in the field of disruptions. In this paper, the equations of the frequency response model of conventional power systems are expanded by considering VPPs and their effective components, and a new model is presented for the frequency response of large power systems based on VPPs. To analyze the frequency behavior of the network, different scenarios are studied on a sample network. To cover the possible situations of the future network, several VPP models with different specifications are considered from the perspective of frequency responsiveness. The simulation results indicate the necessity of using frequency responsive devices in future power networks that are based on VPP.