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Simplification of Thermal Networks for Magnetic Components in Space Power Electronics

Author

Listed:
  • David de la Hoz

    (Centro de Electrónica Industrial, Universidad Politécnica de Madrid, 28006 Madrid, Spain)

  • Guillermo Salinas

    (Centro de Electrónica Industrial, Universidad Politécnica de Madrid, 28006 Madrid, Spain)

  • Vladimir Šviković

    (Thales Alenia Space, 28760 Tres Cantos, Spain)

  • Pedro Alou

    (Centro de Electrónica Industrial, Universidad Politécnica de Madrid, 28006 Madrid, Spain)

Abstract

The volume of magnetic components for space applications, directly related to the launch cost, and their performance are critically influenced by their capability to dissipate the internal electromagnetic power losses. This is the reason why accurate thermal models are required. Furthermore, these models need to be simple and versatile to allow a fast analysis of many different designs. In this study, a specific methodology to analyze inductors and transformers by thermal networks and a simplification based on the Thevenin’s theorem leading to a simple equation are proposed. The specific details to address thermal modelling for space magnetic components are discussed. A generic 50 W Flyback transformer for space applications is analyzed in this study and experimental validation is provided, showing that the proposed method leads to a deviation in the temperature estimation between 1 °C and 5 °C, which is considered quite a good result from the literature review carried out.

Suggested Citation

  • David de la Hoz & Guillermo Salinas & Vladimir Šviković & Pedro Alou, 2020. "Simplification of Thermal Networks for Magnetic Components in Space Power Electronics," Energies, MDPI, vol. 13(11), pages 1-26, June.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:11:p:2903-:d:368007
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    Citations

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    Cited by:

    1. Krzysztof Górecki & Kalina Detka & Krzysztof Górski, 2020. "Compact Thermal Model of the Pulse Transformer Taking into Account Nonlinearity of Heat Transfer," Energies, MDPI, vol. 13(11), pages 1-17, June.
    2. Guillermo Salinas & Juan A. Serrano-Vargas & Javier Muñoz-Antón & Pedro Alou, 2021. "Thermal Resistance Matrix Extraction from Finite-Element Analysis for High-Frequency Magnetic Components," Energies, MDPI, vol. 14(11), pages 1-14, May.

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