doi:10.24084/repqj20.307engCañete López, D.Martín-Arroyo, S.García-Gracia, M.Llamazares Prieto, A.Sáez Martínez, I.An anti-islanding protection based on RoCoF compliant with ENTSO-E and IEC 62116ART-2022-130004In case of unintentional islanding, distributed generation units must be able to detect it and disconnect from the grid in less than 2 seconds. In this work, a Rate of Change of Frequency (RoCoF) method has been developed for islanding detection. Since these algorithms are conditioned by the requirements of grid codes, ENTSO-E network code and IEC 62116 have been taken into account. The RoCoF anti-islanding algorithm has been developed in MATLAB-Simulink and implemented through rapid prototyping techniques in an FPGA ALTERA Cyclone V. To check the proposed protection algorithm, simulation tests have been carried out. Finally, the RoCoF anti-islanding protection has been validated using FPGA in the loop and experimentally in a real 20-kW inverter. © 2022, European Association for the Development of Renewable Energy, Environment and Power Quality (EA4EPQ). All rights reserved.2022http://zaguan.unizar.es/record/11881010.24084/repqj20.307http://zaguan.unizar.es/record/118810oai:zaguan.unizar.es:118810info:eu-repo/grantAgreement/EC/H2020/783158/EU/first and euRopEAn siC eigTh Inches pilOt liNe/REACTIONThis project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 783158-REACTIONRenewable Energy and Power Quality Journal 20 (2022), 348-352byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess