2026-04-17T05:26:35Zhttps://recercat.cat/oai/requestoai:recercat.cat:2117/4437502026-01-20T10:38:08Zcom_2072_1033col_2072_452951
RECERCAT
author
Cano de Dios, Javier
2025-06-27
This master’s thesis presents the modeling and simulation of a microgrid system integrating a photovoltaic array, a battery energy storage system, and a hydrogen electrolyzer. Each subsystem is connected via power electronic converters operating under either grid-forming or gridfollowing control strategies. The main objective is to assess the dynamic behavior of these control approaches under various grid strength conditions, defined by the Short-Circuit Ratio (SCR). Different voltage control strategies are implemented for the grid-forming control: conventional voltage control, virtual impedance, and virtual admittance. Through realistic simulation scenarios, this work evaluates stability, transient response, and power-sharing capabilities of each strategy. Results indicate that while traditional control methods are more prone to oscillations, virtual impedance and admittance improve robustness in weak and low-inertia grids. Virtual admittance offers better stability at the cost of slower response, whereas virtual impedance allows faster dynamics with a trade-off in robustness. This work contributes to the understanding of how to properly select and tune control strategies for resilient and flexible future microgrids.
Open Access
Àrees temàtiques de la UPC::Enginyeria elèctrica
Photovoltaic power generation
Energy storage
Microgrids (Smart power grids)
Energia solar fotovoltaica
Energia -- Emmagatzematge
Microxarxes (Xarxes elèctriques intel·ligents)
Integration of PV, battery, and a hydrogen electrolyzer with different grid-forming and grid-following control strategies
Master thesis