121448 20230914083752.0 doi 10.24084/repqj20.281 sideral 132063 ART-2022-132063 eng Martín-Arroyo, S. Universidad de Zaragoza (orcid)0000-0002-7008-7610 Core losses analysis of the LCL filter inductor for SiC-based inverter 2022 Access copy available to the general public Unrestricted The ability of SiC devices to switch at high speed allows increasing significantly the power density in both converters and passive components, reducing their required size. To mitigate harmonic injection form inverters into the grid, in order to comply with power quality standards, an accurate filter design is required. Given its excellent performance, an LCL filter is the configuration most suitable in grid-connected power converters. Several parameters must be considered when designing an effective LCL filter, and the inverter-side inductor assumes a special importance because of its relevance to suppress high frequency harmonic content at the inverter side. One of the most relevant issues to be considered in the process of designing the LCL filter is the evaluation of core losses in the inverter-side inductor, which will determine the final temperature of the inductor. This paper analyses the core losses of the inverter-side inductor of an LCL filter. The proposed method is based on the computation of the current harmonics generated by the inverter and on Steinmetz’s empirical equation. As a result, core losses calculated taking into account several carrier and sideband harmonics show good agreement with the experimental values. When current harmonics are estimated by simulation, as it is done in the proposed design procedure, results are less accurate, but precise enough for a design procedure. info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 0.148 2022 Electrical and Electronic Engineering 2022 Q4 Renewable Energy, Sustainability and the Environment 2022 Q4 Energy Engineering and Power Technology 2022 Q4 0.6 2022 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Cañete, D. Universidad de Zaragoza Herrero Ciudad, J. Llamazares, A. Universidad de Zaragoza García-Gracia, M. Universidad de Zaragoza (orcid)0000-0002-5727-5705 5009 535 Universidad de Zaragoza Dpto. Ingeniería Eléctrica Área Ingeniería Eléctrica 20 (2022), 263-267 Renewable energy power qual. j. Renewable Energy and Power Quality Journal 2172-038X 1485803 http://zaguan.unizar.es/record/121448/files/texto_completo.pdf Versión publicada 2743642 http://zaguan.unizar.es/record/121448/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:121448 articulos driver 2023-09-13-15:12:46 ARTICLE