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A Virtual Inertia Method for Stability Control of DC Distribution Systems with Parallel Converters

Author

Listed:
  • Qun Gao

    (School of Business, Shandong University of Technology, Zibo 255000, China)

  • Yan Jiang

    (School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China)

  • Ke Peng

    (School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China)

  • Lei Liu

    (School of Electrical and Electronic Engineering, Shandong University of Technology, Zibo 255000, China)

Abstract

DC distribution systems are a typical power electronic system with low inertia, low-rotational kinetic energy, and poor antidisturbance capability when loads fluctuate or parameters change. In this paper, a virtual inertia control with an additional first-order filtering link is proposed on the basis of P - U dc droop control. The results of the simulations and experiments verify that the additional inertia control reduces the voltage change rate and improves the system inertia by adjusting the virtual capacitance value on the DC side of the converter, which can achieve a smoother and more accurate voltage control and suppress the continuous voltage oscillation.

Suggested Citation

  • Qun Gao & Yan Jiang & Ke Peng & Lei Liu, 2022. "A Virtual Inertia Method for Stability Control of DC Distribution Systems with Parallel Converters," Energies, MDPI, vol. 15(22), pages 1-21, November.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:22:p:8581-:d:974638
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