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Joint Control Strategy of Energy Storage System and Cutting Machine for Transient Stability of Direct Current Locking Rear Delivery Terminal System

Author

Listed:
  • Chao Xing

    (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China)

  • Jiajie Xiao

    (School of Electrical Engineering, Hunan University, Changsha 410082, China)

  • Peiqiang Li

    (School of Electrical Engineering, Hunan University, Changsha 410082, China)

  • Xinze Xi

    (Electric Power Research Institute of Yunnan Power Grid Co., Ltd., Kunming 650217, China)

  • Yunhe Chen

    (School of Electrical Engineering, Hunan University, Changsha 410082, China)

  • Qi Guo

    (School of Electrical Engineering, Hunan University, Changsha 410082, China)

Abstract

With the gradual operation of large-capacity HVDC transmission, HVDC), the characteristics of the “strong and weak communication” of the power grid are increasingly obvious. The power impact of the DC line after locking has a great impact on the power angle stability of the system and seriously threatens the transient stability of the delivery end system. By establishing the equivalent model of the AC/DC system with the energy storage power station and analyzing the transient process after DC locking, we propose a control strategy for the transient stability of the energy storage system and the delivery system after DC locking. This strategy controls the charge and discharge of the energy storage system by collecting real-time power angle and voltage data of the grid, uses the equal area rule, and initiates the cutting machine after the energy storage system is withdrawn. To verify the validity and correctness of the proposed method, a simulation analysis was performed in a modified cross-flow CEPRI-36 node AC–DC system.

Suggested Citation

  • Chao Xing & Jiajie Xiao & Peiqiang Li & Xinze Xi & Yunhe Chen & Qi Guo, 2023. "Joint Control Strategy of Energy Storage System and Cutting Machine for Transient Stability of Direct Current Locking Rear Delivery Terminal System," Sustainability, MDPI, vol. 15(15), pages 1-16, August.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:15:p:11960-:d:1209978
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