Lamination effects on a 3D model of the magnetic core of power transformers
| Autor: | Guillermo Serrano-Callergues, Manuel Pineda-Sanchez, Martin Riera-Guasp, Ruben Puche-Panadero, Antonio Poveda-Lerma, J. Perez-Cruz |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Work (thermodynamics)
QC1-999 General Physics and Astronomy Mechanical engineering 3d model 02 engineering and technology Lamination (topology) Alternate-lap joint stack 3d simulation laminated e-i core 01 natural sciences 3D simulation law.invention law alternate-lap joint stack 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Eddy current 010306 general physics Magnetic flux magnetic flux Physics Eddy currents 020208 electrical & electronic engineering eddy currents 41.20.cv Laminated E-I core Butt joint stack Magnetic core butt joint stack INGENIERIA ELECTRICA 07.05.tp |
| Zdroj: | Open Physics, Vol 15, Iss 1, Pp 997-1003 (2017) RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia instname |
| ISSN: | 2391-5471 |
| Popis: | [EN] In this paper the lamination effect on the model of a power transformer's core with stacked E-I structure is analyzed. The distribution of themagnetic flux in the laminations depends on the stacking method. In this work it is shown, using a 3D FEM model and an experimental prototype, that the non-uniform distribution of the flux in a laminated E-I core with alternate-lap joint stack increases substantially the average value of the magnetic flux density in the core, compared with a butt joint stack. Both the simulated model and the experimental tests show that the presence of constructive air-gaps in the E-I junctions gives rise to a zig-zag flux in the depth direction. This inter-lamination flux reduces the magnetic flux density in the Ipieces and increases substantially the magnetic flux density in the E-pieces, with highly saturated points that traditional 2D analysis cannot reproduce. The relation between the number of laminations included in the model, and the computational resourses needed to build it, is also evaluated in this work. This work was supported by the Spanish "Ministerio de Economia y Competitividad" in the framework of the "Programa Estatal de Investigacion, Desarrollo e Innovacion Orientada a los Retos de la Sociedad" (project reference DPI2014-60881-R). |
| Databáze: | OpenAIRE |
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