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Research on Primary Frequency Regulation Control Strategy of the Joint Hydropower and Battery Energy Storage System Based on Refined Model

Author

Listed:
  • Yifeng Gu

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)

  • Fangqing Zhang

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)

  • Youping Li

    (China Yangtze Power Co., Ltd., Wuhan 430010, China
    Laboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan 430014, China)

  • Youhan Deng

    (Laboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan 430014, China
    Institute of Science and Technology, China Three Gorges Corporation, Beijing 100038, China)

  • Xiaojun Hua

    (China Yangtze Power Co., Ltd., Wuhan 430010, China
    Laboratory of Hydro-Wind-Solar Multi-Energy Control Coordination, Wuhan 430014, China)

  • Jiang Guo

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)

  • Tingji Yang

    (School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China)

Abstract

This study aims to reduce reverse power and improve frequency regulation performance in hydropower systems. To achieve this objective, a refined hydropower plant (HPP) simulation model is developed and coupled with a battery energy storage system (BESS), implementing an Integrated Adaptive Virtual Droop Control (IAVDC) strategy. The refined HPP model achieves a simulation accuracy of 98.5%, representing a 26.2% improvement over conventional simplified models. With the BESS integrated under the IAVDC strategy, reverse power is completely eliminated, and frequency regulation time is substantially shortened. The results demonstrate that the joint HPP-BESS frequency regulation effectively mitigates the adverse impact of water hammer, while the proposed IAVDC strategy enhances system responsiveness and reduces frequency recovery time, thereby improving the quality of primary frequency control.

Suggested Citation

  • Yifeng Gu & Fangqing Zhang & Youping Li & Youhan Deng & Xiaojun Hua & Jiang Guo & Tingji Yang, 2025. "Research on Primary Frequency Regulation Control Strategy of the Joint Hydropower and Battery Energy Storage System Based on Refined Model," Energies, MDPI, vol. 18(19), pages 1-15, October.
    • Handle: RePEc:gam:jeners:v:18:y:2025:i:19:p:5249-:d:1764077
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