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Electric Field Simulations and Analysis for High Voltage High Power Medium Frequency Transformer

Author

Listed:
  • Pei Huang

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China)

  • Chengxiong Mao

    (State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China)

  • Dan Wang

    (School of Electrical & Electronic Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China)

Abstract

The electronic power transformer (EPT) raises concerns for its notable size and volume reduction compared with traditional line frequency transformers. Medium frequency transformers (MFTs) are important components in high voltage and high power energy conversion systems such as EPTs. High voltage and high power make the reliable insulation design of MFT more difficult. In this paper, the influence of wire type and interleaved winding structure on the electric field distribution of MFT is discussed in detail. The electric field distributions for six kinds of typical non-interleaved windings with different wire types are researched using a 2-D finite element method (FEM). The electric field distributions for one non-interleaved winding and two interleaved windings are also studied using 2-D FEM. Furthermore, the maximum electric field intensities are obtained and compared. The results show that, in this case study, compared with foil conductor, smaller maximum electric field intensity can be achieved using litz wire in secondary winding. Besides, interleaving can increase the maximum electric field intensity when insulation distance is constant. The proposed method of studying the electric field distribution and analysis results are expected to make a contribution to the improvement of electric field distribution in transformers.

Suggested Citation

  • Pei Huang & Chengxiong Mao & Dan Wang, 2017. "Electric Field Simulations and Analysis for High Voltage High Power Medium Frequency Transformer," Energies, MDPI, vol. 10(3), pages 1-11, March.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:3:p:371-:d:93222
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    References listed on IDEAS

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    1. Hui Huang & Chengxiong Mao & Jiming Lu & Dan Wang, 2014. "Electronic Power Transformer Control Strategy in Wind Energy Conversion Systems for Low Voltage Ride-through Capability Enhancement of Directly Driven Wind Turbines with Permanent Magnet Synchronous G," Energies, MDPI, vol. 7(11), pages 1-18, November.
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    Cited by:

    1. Zhonghuan Su & Longfu Luo & Jun Liu & Zhongxiang Li & Hu Luo & Peng Zhao, 2022. "Study of the Harmonic Analysis and Energy Transmission Mechanism of the Frequency Conversion Transformer," Energies, MDPI, vol. 15(2), pages 1-13, January.
    2. Haonan Tian & Zhongbao Wei & Sriram Vaisambhayana & Madasamy Thevar & Anshuman Tripathi & Philip Kjær, 2019. "A Coupled, Semi-Numerical Model for Thermal Analysis of Medium Frequency Transformer," Energies, MDPI, vol. 12(2), pages 1-16, January.
    3. Dante Ruiz-Robles & Jorge Ortíz-Marín & Vicente Venegas-Rebollar & Edgar L. Moreno-Goytia & David Granados-Lieberman & Juan R. Rodríguez-Rodriguez, 2019. "Nanocrystalline and Silicon Steel Medium-Frequency Transformers Applied to DC-DC Converters: Analysis and Experimental Comparison," Energies, MDPI, vol. 12(11), pages 1-16, May.
    4. Yun Yang & Chengxiong Mao & Dan Wang & Jie Tian & Ming Yang, 2017. "Modeling and Analysis of the Common Mode Voltage in a Cascaded H-Bridge Electronic Power Transformer," Energies, MDPI, vol. 10(9), pages 1-16, September.
    5. Dante Ruiz-Robles & Vicente Venegas-Rebollar & Adolfo Anaya-Ruiz & Edgar L. Moreno-Goytia & Juan R. Rodríguez-Rodríguez, 2018. "Design and Prototyping Medium-Frequency Transformers Featuring a Nanocrystalline Core for DC–DC Converters," Energies, MDPI, vol. 11(8), pages 1-17, August.
    6. Zheng Changjiang & Wang Qian & Wang Huai & Shen Zhan & Claus Leth Bak, 2021. "Electrical Stress on the Medium Voltage Medium Frequency Transformer," Energies, MDPI, vol. 14(16), pages 1-19, August.
    7. Pedro J. Villegas & Juan A. Martín-Ramos & Juan Díaz & Juan Á. Martínez & Miguel J. Prieto & Alberto M. Pernía, 2017. "A Digitally Controlled Power Converter for an Electrostatic Precipitator," Energies, MDPI, vol. 10(12), pages 1-24, December.

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