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A Load Flow Analysis for AC/DC Hybrid Distribution Network Incorporated with Distributed Energy Resources for Different Grid Scenarios

Author

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  • Muhammad Omer Khan

    (College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea)

  • Saeed Zaman Jamali,

    (College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea)

  • Chul-Ho Noh

    (College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea)

  • Gi-Hyeon Gwon

    (College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea)

  • Chul-Hwan Kim

    (College of Information and Communication Engineering, Sungkyunkwan University, Suwon 440-746, Korea)

Abstract

With the recent developments in power electronics technologies, increased deployment of distributed energy resources (DER) with DC output type at distribution voltage levels and significant increase in the number of sensitive AC and DC loads integrated in distribution network have enforced the traditional power network in the continuous renovation process. In this paper, the load flow solution of hybrid AC/DC distribution networks with the multi-terminal configuration is studied. The impact of voltage source converter (VSC) losses and AC and DC line losses in the presence of DER in the distribution system are assessed. The motivation of this analysis is to consider an increase in the number of converter stations which might result in non-negligible converter losses and the presence of various DER within the network imposing different network scenarios. The proposed schemes are simulated on two modified IEEE 33 bus hybrid AC/DC distribution network test system equipped with VSC-MTDC and the results are presented. Obtained results show that by considering the network losses and the converter losses with large number of converters within the network could lead to very different load flow solution and power transfer between networks, especially considering the AC or DC bus dominated network.

Suggested Citation

  • Muhammad Omer Khan & Saeed Zaman Jamali, & Chul-Ho Noh & Gi-Hyeon Gwon & Chul-Hwan Kim, 2018. "A Load Flow Analysis for AC/DC Hybrid Distribution Network Incorporated with Distributed Energy Resources for Different Grid Scenarios," Energies, MDPI, vol. 11(2), pages 1-15, February.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:367-:d:130200
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    References listed on IDEAS

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    1. Noroozian, R. & Abedi, M. & Gharehpetian, G.B. & Hosseini, S.H., 2009. "Combined operation of DC isolated distribution and PV systems for supplying unbalanced AC loads," Renewable Energy, Elsevier, vol. 34(3), pages 899-908.
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    Cited by:

    1. Saeed Zaman Jamali & Syed Basit Ali Bukhari & Muhammad Omer Khan & Muhammad Mehdi & Chul-Ho Noh & Gi-Hyeon Gwon & Chul-Hwan Kim, 2018. "Protection Scheme of a Last Mile Active LVDC Distribution Network with Reclosing Option," Energies, MDPI, vol. 11(5), pages 1-20, April.
    2. Belqasem Aljafari & Subramanian Vasantharaj & Vairavasundaram Indragandhi & Rhanganath Vaibhav, 2022. "Optimization of DC, AC, and Hybrid AC/DC Microgrid-Based IoT Systems: A Review," Energies, MDPI, vol. 15(18), pages 1-30, September.
    3. Liang Xiao & Yan Li & Huangqing Xiao & Zheren Zhang & Zheng Xu, 2018. "Electromechanical Transient Modeling of Line Commutated Converter-Modular Multilevel Converter-Based Hybrid Multi-Terminal High Voltage Direct Current Transmission Systems," Energies, MDPI, vol. 11(8), pages 1-18, August.

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