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Study of the Harmonic Analysis and Energy Transmission Mechanism of the Frequency Conversion Transformer

Author

Listed:
  • Zhonghuan Su

    (College of Electrical and Information Engineering, Hunan University, Changsha 410012, China
    TBEA Hengyang Transformer Co., Ltd., Hengyang 421000, China)

  • Longfu Luo

    (College of Electrical and Information Engineering, Hunan University, Changsha 410012, China)

  • Jun Liu

    (College of Electrical and Information Engineering, Hunan University, Changsha 410012, China)

  • Zhongxiang Li

    (College of Electrical and Information Engineering, Hunan University, Changsha 410012, China)

  • Hu Luo

    (College of Electrical and Information Engineering, Hunan University, Changsha 410012, China)

  • Peng Zhao

    (Key Laboratory of Special Motors and High Voltage Electrical Appliances, Ministry of Education Shenyang, University of Technology, Shenyang 110178, China)

Abstract

Since the transmission distance of submarine cable transmission is inversely proportional to the input frequency, to solve the problem of large losses in the transmission process of offshore wind power, this paper proposes a three-frequency transformer which enables the output of 50 Hz at the input of 50/3 Hz excitation. In this paper, the magnetic flux of a three-dimensional wound core transformer is analytically modeled, the existing condition of magnetic flux harmonics of a three-dimensional wound core transformer is analyzed, the distribution of harmonic content in magnetic flux is obtained, and the principle of realizing frequency conversion is expounded. Secondly, the finite element analysis of the frequency converter is carried out. Finally, a prototype of a frequency transformer is made and tested to verify the correctness of the proposed scheme.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:2:p:519-:d:722699
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    References listed on IDEAS

    as
    1. 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.
    2. Alessandra Follo & Oscar Saborío-Romano & Elisabetta Tedeschi & Nicolaos A. Cutululis, 2021. "Challenges in All-DC Offshore Wind Power Plants," Energies, MDPI, vol. 14(19), pages 1-15, September.
    Full references (including those not matched with items on IDEAS)

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