Optimal Low-voltage Distribution Topology with Integration of PV and Storage for Rural Electrification in Developing Countries: A Case Study of Cambodia

Vai, Vannak; Alvarez‐Hérault, Marie‐Cécile; Raison, Bertrand; Bun, Long

doi:10.35833/mpce.2019.000141

Cited by 33 publications

(8 citation statements)

References 31 publications

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“…With the same problem of load balancing, the 2nd algorithm named first-fit bin-packing (FFBP) is applied [27]. The problem with FFBP is to package all items in a defined number of bins while minimizing the difference in the total weight of each bin.…”

Section: First Fit Bin Packingmentioning

confidence: 99%

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

Vai

Eng

2022

Energies

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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.

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Section: First Fit Bin Packingmentioning

confidence: 99%

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

Vai

Eng

2022

Energies

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“…The reconfiguration of the LV network or construction of new LV networks in such a way that the LV power lines supplying consumers are as short as possible. Such assumptions can be taken into account when a new power infrastructure is built, as presented in the paper [15]. For economic reasons, such a method is not feasible in the situation of the existing power infrastructure due to the necessity to add/relocate medium-voltage/low-voltage (MV/LV) power substations, demolition of existing lines and construction of new ones.…”

Section: Introductionmentioning

confidence: 99%

Voltage Variations and Their Reduction in a Rural Low-Voltage Network with PV Sources of Energy

Szultka

Czapp

et al. 2021

Electronics

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Renewable sources of energy (RES), especially photovoltaic (PV) micro-sources, are very popular in many countries. This way of clean power production is applied on a wide scale in Poland as well. The Polish legal regulations and tariffs specify that every prosumer in a low-voltage network may feed this network with a power not higher than the maximum declared consumed power. In power networks with RES, the voltage level changes significantly along the power line and depends on the actually generated as well as consumed power by particular prosumers. There are cases that prosumers connected to this line cannot produce and inject the full permissible power from PV sources due to the level of a voltage higher than the technically acceptable value. In consequence, it leads to the lack of profitability of investments in installations with PV sources. In this paper, voltage variations in a real rural low-voltage network with PV micro-sources are described. The possible two general solutions of voltage levels improvement are discussed—increase in the cross-sectional area of the bare conductors in the existing overhead line as well as the replacement of the overhead line with a cable line. The recommended solution for the analyzed network, giving the best reduction of voltage variations and acceptable cost, is underlined. Such a recommendation can also be utilized in other rural networks.

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“…Additionally, the authors have proposed a novel algorithm to optimize the AC topology and phase balancing to deal with the load demand uncertainty [5]. Furthermore, the PV and the battery storage system have been sized and located in order to respect the voltage and the current constraints using a genetic algorithm [6] and [7]. However, most researchers have only focused on the AC distribution system with AC consumers.…”

Section: Introductionmentioning

confidence: 99%

Planning of Low Voltage Ac/Dc Microgrid for Un-Electrified Areas

Khon¹,

Vai²,

Alvarez‐Hérault³

et al. 2021

CIRED 2021 - The 26th International Conference and Exhibition on Electricity Distribution

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HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L'archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau recherche, publiés ou non, émanant des établissements d'enseignement et de recherche français ou étrangers, des laboratoires publics ou privés.

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Optimal Low-voltage Distribution Topology with Integration of PV and Storage for Rural Electrification in Developing Countries: A Case Study of Cambodia

Cited by 33 publications

References 31 publications

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

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

Voltage Variations and Their Reduction in a Rural Low-Voltage Network with PV Sources of Energy

Planning of Low Voltage Ac/Dc Microgrid for Un-Electrified Areas

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