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Fluctuation Suppression of DC-Link Voltage Using Control of Converters Connected with DC Distributed Generation

Author

Listed:
  • Sang-Jae Choi

    (Department of Electrical Engineering, Soongsil University, 369, Sangdo-ro, Dongjak-gu, Seoul 156-743, Korea)

  • Sung-Hun Lim

    (Department of Electrical Engineering, Soongsil University, 369, Sangdo-ro, Dongjak-gu, Seoul 156-743, Korea)

Abstract

Due to the increase in DC load and DC Power generation, the need for DC power system is emerging. Accordingly, FRT (fault ride through) and LVRT (low voltage ride through), which are related regulations for renewable energy sources, have been enacted, and operation algorithms of each converter are required for this. However, the operation of the converter according to LVRT regulations causes DC voltage fluctuations. In the current study, DC voltage fluctuation is suppressed through converter control of DC-linked battery. The controller was designed from the relational equation between DC voltage and instantaneous power of battery. The pattern of DC voltage fluctuations to the output of the PV (photovoltaic), which is a DC power generation source, was confirmed, and voltage fluctuation suppression was verified by applying the designed converter cooperation algorithm and controller.

Suggested Citation

  • Sang-Jae Choi & Sung-Hun Lim, 2020. "Fluctuation Suppression of DC-Link Voltage Using Control of Converters Connected with DC Distributed Generation," Energies, MDPI, vol. 13(21), pages 1-18, November.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:21:p:5832-:d:441781
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    References listed on IDEAS

    as
    1. Jin, Peng & Li, Yang & Li, Guoqing & Chen, Zhe & Zhai, Xiaojuan, 2017. "Optimized hierarchical power oscillations control for distributed generation under unbalanced conditions," Applied Energy, Elsevier, vol. 194(C), pages 343-352.
    2. Li, Yang & Li, Yahui & Li, Guoqing & Zhao, Dongbo & Chen, Chen, 2018. "Two-stage multi-objective OPF for AC/DC grids with VSC-HVDC: Incorporating decisions analysis into optimization process," Energy, Elsevier, vol. 147(C), pages 286-296.
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    Cited by:

    1. Anderson Rodrigo Piccini & Geraldo Caixeta Guimarães & Arthur Costa de Souza & Ana Maria Denardi, 2021. "Implementation of a Photovoltaic Inverter with Modified Automatic Voltage Regulator Control Designed to Mitigate Momentary Voltage Dip," Energies, MDPI, vol. 14(19), pages 1-22, October.

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