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A Novel Voltage Control Scheme for Low-Voltage DC Distribution Systems Using Multi-Agent Systems

Author

Listed:
  • Trinh Phi Hai

    (School of Electrical Engineering, Kookmin University, 861-1, Jeongneung-dong, Seongbuk-gu, Seoul 02707, Korea)

  • Hector Cho

    (School of Electrical Engineering, Kookmin University, 861-1, Jeongneung-dong, Seongbuk-gu, Seoul 02707, Korea)

  • Il-Yop Chung

    (School of Electrical Engineering, Kookmin University, 861-1, Jeongneung-dong, Seongbuk-gu, Seoul 02707, Korea)

  • Hyun-Koo Kang

    (Korea Electric Power Research Institute (KEPRI), 105 Munji-ro, Yuseong-gu, Daejeon 34056, Korea)

  • Jintae Cho

    (Korea Electric Power Research Institute (KEPRI), 105 Munji-ro, Yuseong-gu, Daejeon 34056, Korea)

  • Juyong Kim

    (Korea Electric Power Research Institute (KEPRI), 105 Munji-ro, Yuseong-gu, Daejeon 34056, Korea)

Abstract

Low-voltage direct current (LVDC) distribution systems have been evolving into interesting ways of integrating distributed energy resources (DERs) and power electronics loads to local distribution networks. In LVDC distribution systems, voltage regulation is one of the most important issues, whereas AC systems have concerns such as frequency, power factor, reactive power, harmonic distortion and so on. This paper focuses on a voltage control method for a LVDC distribution system based on the concept of multi-agent system (MAS), which can deploy intelligence and decision-making abilities to local areas. This paper proposes a distributed power flow analysis method using local information refined by local agents and communication between agents based on MAS. This paper also proposes a voltage control method by coordinating the main AC/DC converter and multiple DERs. By using the proposed method, we can effectively maintain the line voltages in a pre-defined normal range. The performance of the proposed voltage control method is evaluated by case studies and compared to conventional methods.

Suggested Citation

  • Trinh Phi Hai & Hector Cho & Il-Yop Chung & Hyun-Koo Kang & Jintae Cho & Juyong Kim, 2017. "A Novel Voltage Control Scheme for Low-Voltage DC Distribution Systems Using Multi-Agent Systems," Energies, MDPI, vol. 10(1), pages 1-20, January.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:1:p:41-:d:86696
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    References listed on IDEAS

    as
    1. Justo, Jackson John & Mwasilu, Francis & Lee, Ju & Jung, Jin-Woo, 2013. "AC-microgrids versus DC-microgrids with distributed energy resources: A review," Renewable and Sustainable Energy Reviews, Elsevier, vol. 24(C), pages 387-405.
    2. Hyun-Koo Kang & Il-Yop Chung & Seung-Il Moon, 2015. "Voltage Control Method Using Distributed Generators Based on a Multi-Agent System," Energies, MDPI, vol. 8(12), pages 1-17, December.
    3. Jong-Chan Choi & Ho-Yong Jeong & Jin-Young Choi & Dong-Jun Won & Seon-Ju Ahn & Seung-il Moon, 2014. "Voltage Control Scheme with Distributed Generation and Grid Connected Converter in a DC Microgrid," Energies, MDPI, vol. 7(10), pages 1-15, October.
    4. Palizban, Omid & Kauhaniemi, Kimmo, 2015. "Hierarchical control structure in microgrids with distributed generation: Island and grid-connected mode," Renewable and Sustainable Energy Reviews, Elsevier, vol. 44(C), pages 797-813.
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    Cited by:

    1. Yicong Wang & Chang Liu & Ji Han & Haoyu Tan & Fangchao Ke & Dongyin Zhang & Cong Wei & Shihong Miao, 2022. "A Distributed Frequency Regulation Method for Multi-Area Power System Considering Optimization of Communication Structure," Energies, MDPI, vol. 15(18), pages 1-18, September.
    2. Mir Sayed Shah Danish & Tomonobu Senjyu & Sayed Mir Shah Danish & Najib Rahman Sabory & Narayanan K & Paras Mandal, 2019. "A Recap of Voltage Stability Indices in the Past Three Decades," Energies, MDPI, vol. 12(8), pages 1-18, April.
    3. Phi-Hai Trinh & Il-Yop Chung, 2021. "Optimal Control Strategy for Distributed Energy Resources in a DC Microgrid for Energy Cost Reduction and Voltage Regulation," Energies, MDPI, vol. 14(4), pages 1-19, February.

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