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The Modeling and Simplification of a Thermal Model of a Planar Transformer Based on Internal Power Loss

Author

Listed:
  • Zhan Shen

    (Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing 210096, China
    Power Quality Engineering Research Center, The Ministry of Education, Anhui University, Hefei 230601, China)

  • Bingxin Xu

    (Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing 210096, China)

  • Chenglei Liu

    (Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing 210096, China)

  • Cungang Hu

    (Power Quality Engineering Research Center, The Ministry of Education, Anhui University, Hefei 230601, China)

  • Bi Liu

    (Power Quality Engineering Research Center, The Ministry of Education, Anhui University, Hefei 230601, China)

  • Zhike Xu

    (Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing 210096, China)

  • Long Jin

    (Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing 210096, China)

  • Wu Chen

    (Jiangsu Provincial Key Laboratory of Smart Grid Technology and Equipment, Southeast University, Nanjing 210096, China)

Abstract

With the development of high-performance wide-band-gap devices and increasing converter frequency, planar transformers are widely used in high-frequency and high-power-density power conversions. Due to the skin effect and proximity effect, accurate thermal analysis and a simplified thermal model of planar transformers are needed for quick thermal verification as well as system design. This paper proposes two thermal simplification models based on the planar transformer’s thermal impedance network. The internal power loss and thermal coupling between each component are first analyzed. Then, based on thermal radiation theory, the simplified thermal model of the planar transformer is presented. It only requires the input of the total power loss of the planar transformer to calculate the temperature rise, and it does not need the power loss of each component. Finally, the simulation and experimental verification are carried out on a MHz prototype.

Suggested Citation

  • Zhan Shen & Bingxin Xu & Chenglei Liu & Cungang Hu & Bi Liu & Zhike Xu & Long Jin & Wu Chen, 2022. "The Modeling and Simplification of a Thermal Model of a Planar Transformer Based on Internal Power Loss," Sustainability, MDPI, vol. 14(19), pages 1-20, September.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:19:p:11915-:d:921289
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    Citations

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    Cited by:

    1. Denitsa Darzhanova & Ilona Iatcheva, 2023. "Investigation of the Temperature Field Distribution in an EI Type Iron-Cored Coil Using 3D FEM Modeling at Different Load Conditions," Energies, MDPI, vol. 16(12), pages 1-13, June.
    2. Jie Shi & Xiangzheng Xu, 2022. "A Robust Control Scheme for Dynamic Voltage Restorer with Current Limiting Capability," Sustainability, MDPI, vol. 14(24), pages 1-12, December.
    3. Przemyslaw Goscinski & Zbigniew Nadolny & Andrzej Tomczewski & Ryszard Nawrowski & Tomasz Boczar, 2023. "The Influence of Heat Transfer Coefficient α of Insulating Liquids on Power Transformer Cooling Systems," Energies, MDPI, vol. 16(6), pages 1-15, March.

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