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A Virtual Synchronous Generator Based Hierarchical Control Scheme of Distributed Generation Systems

Author

Listed:
  • Gang Yao

    (Sino-Dutch Mechatronics Engineering Department, Shanghai Maritime University, Shanghai 201306, China)

  • Zhichong Lu

    (Sino-Dutch Mechatronics Engineering Department, Shanghai Maritime University, Shanghai 201306, China)

  • Yide Wang

    (Sino-Dutch Mechatronics Engineering Department, Shanghai Maritime University, Shanghai 201306, China
    IETR—UMR CNRS 6164, l’Université de Nantes/Polytech Nantes, 44300 Nantes, France)

  • Mohamed Benbouzid

    (Sino-Dutch Mechatronics Engineering Department, Shanghai Maritime University, Shanghai 201306, China
    FRE CNRS 3744 IRDL, University of Brest, 29238 Brest, France)

  • Luc Moreau

    (IREENA, l’Université de Nantes/Polytech Nantes, 44602 Nantes, France)

Abstract

Sustainable energy-based generation systems, such as photovoltaic and wind turbine generation systems, normally adopt inverters to connect to the grid. These power electronic interfaces possess the characteristics of small inertia and small output impedance, which create difficulties to stabilize the voltage and frequency of a distributed power source. To deal with this problem, a Virtual Synchronous Generator (VSG)-based inverter control method is presented in this paper by introducing virtual inertia and damping coefficient into the control loop to emulate the dynamic behavior of a traditional synchronous generator. Based on this VSG control method, a three-layer hierarchical control scheme is further proposed to increase the control accuracy of the voltage and frequency in a VSG-based distributed generation system with parallel inverters. The principle of the VSG control method, the system stability analysis, the design process of the hierarchical control structure, and the frequency/voltage secondary regulation processes are all specified in this paper. Finally, some numerical simulations are carried out and the effectiveness of proposed control scheme is verified by the simulation results analysis.

Suggested Citation

  • Gang Yao & Zhichong Lu & Yide Wang & Mohamed Benbouzid & Luc Moreau, 2017. "A Virtual Synchronous Generator Based Hierarchical Control Scheme of Distributed Generation Systems," Energies, MDPI, vol. 10(12), pages 1-23, December.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:12:p:2049-:d:121569
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    Citations

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    Cited by:

    1. Juliano C. L. da Silva & Thales Ramos & Manoel F. Medeiros Júnior, 2021. "Modeling and Harmonic Impact Mitigation of Grid-Connected SCIG Driven by an Electromagnetic Frequency Regulator," Energies, MDPI, vol. 14(15), pages 1-21, July.
    2. Rasool M. Imran & Shaorong Wang, 2018. "Enhanced Two-Stage Hierarchical Control for a Dual Mode WECS-Based Microgrid," Energies, MDPI, vol. 11(5), pages 1-19, May.
    3. Xiangwu Yan & Jiajia Li & Ling Wang & Shuaishuai Zhao & Tie Li & Zhipeng Lv & Ming Wu, 2018. "Adaptive-MPPT-Based Control of Improved Photovoltaic Virtual Synchronous Generators," Energies, MDPI, vol. 11(7), pages 1-18, July.
    4. Makolo, Peter & Zamora, Ramon & Lie, Tek-Tjing, 2021. "The role of inertia for grid flexibility under high penetration of variable renewables - A review of challenges and solutions," Renewable and Sustainable Energy Reviews, Elsevier, vol. 147(C).
    5. Bahram Shakerighadi & Esmaeil Ebrahimzadeh & Frede Blaabjerg & Claus Leth Bak, 2018. "Large-Signal Stability Modeling for the Grid-Connected VSC Based on the Lyapunov Method," Energies, MDPI, vol. 11(10), pages 1-16, September.

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