Castro Martínez, JesúsArnaltes Gómez, SantiagoAlonso-Martínez de las Morenas, Jaime ManuelRodríguez Amenedo, José Luis2021-10-262021-10-262021-04-02Castro Martinez, J., Arnaltes, S., Alonso-Martinez, J. & Rodriguez Amenedo, J. L. (2021). Contribution of Wind Farms to the Stability of Power Systems with High Penetration of Renewables. Energies, 14(8), 2207.1996-1073https://hdl.handle.net/10016/33487This article belongs to the Special Issue Modeling and Control of Wind Energy Conversion Systems.Power system inertia is being reduced because of the increasing penetration of renewable energies, most of which use power electronic interfaces with the grid. This paper analyses the contribution of inertia emulation and droop control to the power system stability. Although inertia emulation may appear the best option to mitigate frequency disturbances, a thorough analysis of the shortcomings that face real-time implementations shows the opposite. Measurement noise and response delay for inertia emulation hinder controller performance, while the inherently fast droop response of electronic converters provides better frequency support. System stability, expressed in terms of rate of change of frequency (ROCOF) and frequency nadir, is therefore improved with droop control, compared to inertia emulation.21eng© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license.Atribución 3.0 EspañaDroop controlFast frequency responseInertia emulationRenewable energyWind power systemsresearch articleElectrónicahttps://doi.org/10.3390/en14082207open access22078Energies14AR/0000028414