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Comprehensive Low Voltage Microgrid Planning Methodology for Rural Electrification

Author

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  • Kimsrornn Khon

    (Department of Electrical and Energy Engineering, Faculty of Electrical Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia
    Univ. Grenoble Alpes, CNRS, Grenoble INP, G2Elab, 38 000 Grenoble, France
    Energy Technology and Management Unit, Research and Innovation Center, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia)

  • Chhith Chhlonh

    (Department of Electrical and Energy Engineering, Faculty of Electrical Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia
    Univ. Grenoble Alpes, CNRS, Grenoble INP, G2Elab, 38 000 Grenoble, France
    Energy Technology and Management Unit, Research and Innovation Center, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia)

  • Vannak Vai

    (Department of Electrical and Energy Engineering, Faculty of Electrical Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia
    Energy Technology and Management Unit, Research and Innovation Center, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia)

  • Marie-Cecile Alvarez-Herault

    (Univ. Grenoble Alpes, CNRS, Grenoble INP, G2Elab, 38 000 Grenoble, France)

  • Bertrand Raison

    (Univ. Grenoble Alpes, CNRS, Grenoble INP, G2Elab, 38 000 Grenoble, France)

  • Long Bun

    (Department of Electrical and Energy Engineering, Faculty of Electrical Engineering, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia
    Energy Technology and Management Unit, Research and Innovation Center, Institute of Technology of Cambodia, Russian Federation Blvd., P.O. Box 86, Phnom Penh 120404, Cambodia)

Abstract

Recently, DC-powered devices such as loads (USB plugs, chargers, LED lighting) and distributed energy resources (solar photovoltaic and battery energy storage) have been increasingly used. Therefore, their connection to the grid requires AC/DC converters, which raises the question of operating part of the grid in DC in order to connect DC loads to DC producers and storage. In Cambodia, the electrification rate is only about 82% of the population in 2021 in rural areas. The objective of this work is to propose a low voltage microgrid comprehensive planning tool for electrification of developing countries. From the data collected on consumption needs, the objective is to find the optimal electrification scheme, i.e., AC or AC/DC distribution, optimal topology and distributed energy resources allocation and operation for both grid-connected and off-grid mode. A set of technical, economic, and environmental key performance indicators allows for comparison of solutions. The interest and efficiency of such a tool are illustrated on a real case study, an island area. Moreover, uncertainties on load consumption are also considered to assess the sensitivity and robustness of the proposed algorithm. The results show that, although the overall cost of the hybrid AC/DC microgrid is slightly higher than that of the AC microgrid, it allows a gradual electrification avoiding large initial investments.

Suggested Citation

  • Kimsrornn Khon & Chhith Chhlonh & Vannak Vai & Marie-Cecile Alvarez-Herault & Bertrand Raison & Long Bun, 2023. "Comprehensive Low Voltage Microgrid Planning Methodology for Rural Electrification," Sustainability, MDPI, vol. 15(3), pages 1-23, February.
    • Handle: RePEc:gam:jsusta:v:15:y:2023:i:3:p:2841-:d:1057510
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    References listed on IDEAS

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    1. Saini, Krishna Kumar & Sharma, Pavitra & Mathur, Hitesh Datt & Gautam, Aditya R. & Bansal, Ramesh C., 2024. "Techno-economic and reliability assessment of an off-grid solar-powered energy system," Applied Energy, Elsevier, vol. 371(C).
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    3. Dara Eam & Vannak Vai & Chhith Chhlonh & Samphors Eng, 2023. "Planning of an LVAC Distribution System with Centralized PV and Decentralized PV Integration for a Rural Village," Energies, MDPI, vol. 16(16), pages 1-19, August.

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