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A 10 kV/1 MW High-Frequency-Isolated Power Conversion System for Battery Energy

Author

Listed:
  • Ning Xie

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510642, China)

  • Jie Shu

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510642, China)

  • Jiongcong Chen

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510642, China)

  • Hao Wang

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510642, China)

  • Fei Xie

    (Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510642, China)

Abstract

Energy storage technology has become critical for supporting China’s large-scale access to renewable energy. As the interface between the battery energy storage system (BESS) and power grid, the stability of the PCS (power conversion system) plays an essential role. Here, we present a topology of a 10 kV high-voltage energy storage PCS without a power frequency transformer for the establishment of a large-scale energy storage system. We analyzed the energy storage converter’s mechanism and characteristics and also introduced the power-control strategy of the HVAC (high-voltage AC) and LVDC (low-voltage DC) converter module. On this basis, a 10 kV/1 MW high-capacity PCS prototype was designed. Additionally, by simulation and experiment, we proved the correctness of the PCS scheme. The topology and control strategy proposed in this paper can provide cases and technical support for the subsequent promotion and application of new energy and power station energy storage.

Suggested Citation

  • Ning Xie & Jie Shu & Jiongcong Chen & Hao Wang & Fei Xie, 2022. "A 10 kV/1 MW High-Frequency-Isolated Power Conversion System for Battery Energy," Energies, MDPI, vol. 15(14), pages 1-18, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5272-:d:867474
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    References listed on IDEAS

    as
    1. Fujun Ma & Yulin Kuang & Zhengwen Wang & Gelin Huang & Dexing Kuang & Cheng Zhang, 2021. "Multi-Port and -Functional Power Conditioner and Its Control Strategy with Renewable Energy Access for a Railway Traction System," Energies, MDPI, vol. 14(19), pages 1-20, September.
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