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An Isolated Three-Port Power Converter with 2C3L and 2C2L Resonant Circuits

Author

Listed:
  • Yong-Nong Chang

    (Department of Electrical Engineering, National Formosa University, Yunlin County, Huwei 632, Taiwan)

  • Yih-Her Yan

    (Department of Electrical Engineering, National Formosa University, Yunlin County, Huwei 632, Taiwan)

  • Sheng-Min Huang

    (Department of Electrical Engineering, National Formosa University, Yunlin County, Huwei 632, Taiwan)

Abstract

This study proposed an isolated three-port bidirectional resonant converter that combines 2C3L and 2C2L resonant circuits for application in power dispatching. The proposed converter improves the bidirectional power dispatch capabilities of conventional three-port converters and utilizes different resonant converters to complete the energy charge–discharge through ports of different voltage levels. By modulating the frequency alone, bidirectional power regulation and electrical isolation were achieved among the three ports with different voltage levels. The converter involves the use of resonance techniques to enable the power switch to perform soft switching during bidirectional power transmissions, reducing switching loss and electromagnetic interference. The system control of the circuit was a Texas Instruments TMS320F28335 microcontroller. By simulating a DC grid port with a fixed voltage of 400 V, a vehicle battery port with a variable voltage of 280–403 V, and a battery charging port with a variable voltage of 180–213 V, an experimental platform with a rated output of 3 kW was built to determine the accuracy of the proposed theoretical analysis and design method.

Suggested Citation

  • Yong-Nong Chang & Yih-Her Yan & Sheng-Min Huang, 2023. "An Isolated Three-Port Power Converter with 2C3L and 2C2L Resonant Circuits," Energies, MDPI, vol. 16(4), pages 1-18, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:4:p:1830-:d:1066110
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    References listed on IDEAS

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    1. Cheng-Shan Wang & Wei Li & Yi-Feng Wang & Fu-Qiang Han & Zhun Meng & Guo-Dong Li, 2017. "An Isolated Three-Port Bidirectional DC-DC Converter with Enlarged ZVS Region for HESS Applications in DC Microgrids," Energies, MDPI, vol. 10(4), pages 1-23, April.
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    Cited by:

    1. Feyijimi Adegbohun & Annette von Jouanne & Emmanuel Agamloh & Alex Yokochi, 2024. "A Review of Bidirectional Charging Grid Support Applications and Battery Degradation Considerations," Energies, MDPI, vol. 17(6), pages 1-17, March.

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