2026-04-30T05:45:12Zhttps://ebiltegia.mondragon.edu/oai/request

oai:ebiltegia.mondragon.edu:20.500.11984/68062024-12-03T08:13:25Zcom_20.500.11984_473col_20.500.11984_478

00925njm 22002777a 4500 dc Arruti Romero, Asier author Aizpuru, Iosu author Mazuela, Mikel author 2024 Prediction of Litz wire losses is a challenging endeavor in the design of high-frequency transformers. Although many analytical approaches of varying complexity can be found in the literature, classical 1-D-based models are the norm in the analysis of wide design spaces. Even then, an important degree of uncertainty exists around the accuracy of the 1-D models. After a critical review of these models and an analysis of their application in Litz wire loss prediction, a new model is proposed, which tries to address some of the concerns and limitations of the existing approaches. The models are evaluated against 2-D finite-element simulations in many different conditions to ensure that the models correctly consider the impact of different parameters. The experimental results are presented to demonstrate the accuracy of the new approach at very high frequencies and high amounts of strands using four prototypes with different Litz wires, designed to correctly match the conditions inherent to any 1-D model. 1941-0107 https://katalogoa.mondragon.edu/janium-bin/janium_login_opac.pl?find&ficha_no=178126 https://hdl.handle.net/20.500.11984/6806 High-frequency transformers Mathematical model Wire ODS 7 Energía asequible y no contaminante Evolution of classical 1-D based models and improved approach for the characterization of litz wire losses