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Virtual Inertia Adaptive Control Strategy of ESU in DC Microgrid

Author

Listed:
  • Tao Wang

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China
    State Grid Weihai Supply Company, Weihai 264200, China)

  • Hongshan Li

    (Department of New Energy, Harbin Institute of Technology at Weihai, Weihai 264200, China)

  • Taiyu Wang

    (Department of New Energy, Harbin Institute of Technology at Weihai, Weihai 264200, China)

  • Meng Liu

    (Electric Power Research Institute, State Grid Shandong Electric Power Company, Jinan 250000, China)

  • Tong Zhu

    (Department of New Energy, Harbin Institute of Technology at Weihai, Weihai 264200, China)

  • Hongchen Liu

    (Department of Electrical Engineering, Harbin Institute of Technology, Harbin 150001, China)

Abstract

With the increasingly obvious DC characteristics at both ends of the source and load sides of the low-voltage distribution network, the application scenarios of low-voltage DC microgrid gradually appear. Compared with the AC system, the DC microgrid has the characteristics of low inertia, weak damping, and poor anti-disturbance capabilities, all of which are important for improving operational stability. A virtual inertia adaptive control approach for fast-tracking energy storage under varied disturbances is presented using energy storage as a virtual inertia unit. Firstly, a stability analysis model including constant power load is constructed for the low-voltage DC microgrid; then, the control logic of the virtual inertia of the energy storage system is designed. Finally, the corresponding model is built in MATLAB/SIMULINK and the experiment platform to verify the correctness and effectiveness of the proposed control strategy.

Suggested Citation

  • Tao Wang & Hongshan Li & Taiyu Wang & Meng Liu & Tong Zhu & Hongchen Liu, 2022. "Virtual Inertia Adaptive Control Strategy of ESU in DC Microgrid," Energies, MDPI, vol. 15(17), pages 1-14, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:17:p:6112-:d:895444
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