Delay-Dependent Stability Analysis of Micro-Grid with Electric Vehicles Aggregator using Direct Method

This research examines the incorporation of Electric Vehicles (EVs) into microgrids (MGs) to support frequency regulation. Integrating EVs introduces communication delays, potentially affecting power system stability. Also, the paper studies the effects of these delays on MG frequency stability. A frequency-domain method is used to determine the maximum allowable delay for stability, based on eliminating exponential terms in the characteristic equation. The Stability Delay Margins (SDMs) are computed for various Proportional-Integral (PI) gains and validated through MATLAB Simulink simulations.