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A Review of Solid-State Transformer-Based Ultra-Fast Charging Station Technologies: Topologies, Control, and Grid Interaction

Author

Listed:
  • Hanbing Xiao

    (School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland 1010, New Zealand)

  • Krishnamachar Prasad

    (School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland 1010, New Zealand)

  • Jeff Kilby

    (School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, Auckland 1010, New Zealand)

Abstract

Solid-state transformer (SST)-based ultra-fast charging stations (UFCSs) are emerging as a key technology in next-generation electric vehicle (EV) infrastructure, addressing the growing demand for efficient charging. Unlike traditional line-frequency transformers, SSTs offer higher energy conversion efficiency, smaller size, and better scalability. However, challenges such as control complexity and grid stability remain. This review analyzes existing SST topologies (both classical and new) and control methods, discussing their impact on system performance, and finally, it provides an outlook on future technological trends.

Suggested Citation

  • Hanbing Xiao & Krishnamachar Prasad & Jeff Kilby, 2025. "A Review of Solid-State Transformer-Based Ultra-Fast Charging Station Technologies: Topologies, Control, and Grid Interaction," Energies, MDPI, vol. 18(17), pages 1-43, September.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:17:p:4705-:d:1742123
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    References listed on IDEAS

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    1. Halise Kilicoglu & Pietro Tricoli, 2023. "Technical Review and Survey of Future Trends of Power Converters for Fast-Charging Stations of Electric Vehicles," Energies, MDPI, vol. 16(13), pages 1-19, July.
    2. Deepak Ronanki & Apoorva Kelkar & Sheldon S. Williamson, 2019. "Extreme Fast Charging Technology—Prospects to Enhance Sustainable Electric Transportation," Energies, MDPI, vol. 12(19), pages 1-17, September.
    3. Nassipkul Dyussembekova & Reiner Schütt & Ingmar Leiße & Bente Ralfs, 2024. "Decision Process for Identifying Appropriate Devices for Power Transfer between Voltage Levels in Distribution Grids," Energies, MDPI, vol. 17(9), pages 1-12, April.
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