Exploration of EV Fleet role in Frequency Regulation using an Aggregate Model including Communication Delay

Abstract

The world is more focusing on the mission of zero carbon emission and coming up with suitable propagandas. Utilization of renewable energy sources (RES) and electric vehicle (EV) in generation and automobile sectors are major stepping stones towards this mission. But, the drastic rise in EVs enables more number of vehicles charging on the electric grid. This shows considerable impact on the power system dynamics. The EVs can also provide ancillary services with appropriate control technique to increase the robustness of the power system. Hence, the study of the dynamic stability analysis of the power system in necessary including EVs. This work evaluates the participation of EVs improving the frequency regulation of the power system using an aggregate model. A single area system and P. Kundur's two-area four generator model has been taken as test systems for analysis purposes. The frequency regulation of the considered test systems is studied using volleyball premier league algorithm based PID controller. The comparative studies show the ancillary support of EVs in transient response of the system for a sudden perturb in load demand. Also the dynamic behavior of the system has been verified for the presence of communication delay in the LFC mechanism.