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Study of Grid-Connected PV System for a Low Voltage Distribution System: A Case Study of Cambodia

Author

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  • Vannak Vai

    (Department of Electrical and Energy Engineering, Energy Technology and Management Unit, Research and Innovation Center, Institute of Technology of Cambodia, Phnom Penh 12406, Cambodia)

  • Samphors Eng

    (Department of Electrical and Energy Engineering, Energy Technology and Management Unit, Research and Innovation Center, Institute of Technology of Cambodia, Phnom Penh 12406, Cambodia)

Abstract

The low voltage (LV) distribution systems are extended year by year due to the increase in energy demand. To overcome this issue, distribution system utilities have been focusing on designing and operating an appropriate distribution system with minimum capital and operational expenditure for supplying electricity to users. This article compares different algorithms to design an LVAC distribution system in a rural area, which focuses on minimizing the total length of lines and the power losses and balancing the loads among the three phases including the economic evaluation of the grid-connected PV system. Firstly, the shortest path (SP) algorithm is established to search for the minimization of the conductor used. Secondly, three different algorithms which are repeated phase sequence (RPABC), first fit bin packing (FFBP), and mixed-integer quadratic programming (MIQP) algorithms are developed to balance the load and minimize power losses. Next, a comparative result of three different algorithms is provided. Finally, the techno-economic analysis of the grid-connected PV system with different electricity tariffs with hybrid optimization of multiple energy resources (HOMER) software is studied in the planning period. To validate a proposed method, the 129-buses low voltage distribution in a rural village, in Cambodia, is tested. The simulation result confirms the optimal solution of the MIQP algorithm and PV system integration in designing a distribution system in a particular case study.

Suggested Citation

  • Vannak Vai & Samphors Eng, 2022. "Study of Grid-Connected PV System for a Low Voltage Distribution System: A Case Study of Cambodia," Energies, MDPI, vol. 15(14), pages 1-12, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5003-:d:858620
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    References listed on IDEAS

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    1. Tefera Mekonnen & Ramchandra Bhandari & Venkata Ramayya, 2021. "Modeling, Analysis and Optimization of Grid-Integrated and Islanded Solar PV Systems for the Ethiopian Residential Sector: Considering an Emerging Utility Tariff Plan for 2021 and Beyond," Energies, MDPI, vol. 14(11), pages 1-24, June.
    2. Zahid Javid & Ulas Karaagac & Ilhan Kocar & Ka Wing Chan, 2021. "Laplacian Matrix-Based Power Flow Formulation for LVDC Grids with Radial and Meshed Configurations," Energies, MDPI, vol. 14(7), pages 1-21, March.
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    Cited by:

    1. 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.
    2. Dubravko Žigman & Tomislav Tomiša & Krešimir Osman, 2023. "Methodology Presentation for the Configuration Optimization of Hybrid Electrical Energy Systems," Energies, MDPI, vol. 16(5), pages 1-25, February.
    3. 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.

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