RT Journal Article
T1 Numerical and Experimental Evaluation and Heat Transfer Characteristics of a Soft Magnetic Transformer Built from Laminated Steel Plates
A1 Cano Pleite, Eduardo
A1 Barrado Bautista, Andrés
A1 García Hernando, Néstor
A1 Olías Ruiz, Emilio
A1 Soria Verdugo, Antonio
AB The present work evaluates, both experimentally and numerically, the heat transfer characteristics of a 5 kW three-phase transformer built from laminated steel sheets. The transformer is operated at different powers, and its temperature distribution is monitored using 108 thermocouples. The experimental measurements are used firstly to determine the heat dissipated at the core and the windings of the transformer. This information is used as an input for a finite element numerical model, which evaluates the heat transfer characteristics of the transformer. The model proposed in this work simply solves the diffusion equation inside the transformer, accounting for the anisotropic thermal conductivity of the different components of the transformer, together with well-known correlations at its boundaries. The results reveal that the proposed numerical model can correctly reproduce the maximum temperature, the temperature distribution, and the time-evolution of the temperature at specific points of the transformer measured during the experimental campaign. These results are of great use for the subsequent development of transformers of the same type in lab-scale or industrial-scale size and reveal the applicability of simplified numerical models to accurately predict the heat transfer characteristics of this kind of transformers.
PB MDPI
SN 1424-8220
YR 2021
FD 2021-11-28
LK https://hdl.handle.net/10016/34140
UL https://hdl.handle.net/10016/34140
LA eng
NO Eduardo Cano-Pleite acknowledges support from the CONEX-Plus programmefunded by Universidad Carlos III de Madrid and the European Union’s Horizon 2020 programme under the Marie Sklodowska-Curie grant agreement No. 801538.
DS e-Archivo
RD 1 sept. 2024