A design and dispatch optimization algorithm based on mixed integer linear programming for rural electrification

•Microgrids can be a valid alternative to grid extension for rural electrification.•Advance dispatch strategies and proper system design can significantly reduce costs.•We propose a new catalog-based microgrid design optimization algorithm.•Yearly performance is assessed via a realistic Rolling Hori...

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Vydané v:Applied energy Ročník 233-234; s. 1104 - 1121
Hlavní autori: Moretti, Luca, Astolfi, Marco, Vergara, Claudio, Macchi, Ennio, Pérez-Arriaga, Josè Ignacio, Manzolini, Giampaolo
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: Elsevier Ltd 01.01.2019
Predmet:
algorithms
Design optimization
development projects
Economic dispatch
Electrification
energy costs
linear programming
Microgrid
MILP
Off-grid systems
planning
rural electrification
Sub-Saharan Africa
Sub-Saharan Africa
Electrification
Off-grid systems
Economic dispatch
Microgrid
MILP
Design optimization
ISSN:0306-2619, 1872-9118
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Shrnutí:•Microgrids can be a valid alternative to grid extension for rural electrification.•Advance dispatch strategies and proper system design can significantly reduce costs.•We propose a new catalog-based microgrid design optimization algorithm.•Yearly performance is assessed via a realistic Rolling Horizon simulation.•The algorithm is applied to optimal regional electrification planning. Off-grid microgrids constitute an increasingly viable alternative to grid extension for rural electrification. Thanks to significant reductions in hardware cost, energy cost for off-grid users in areas sparsely covered by the national grid has become competitive with grid-connection once infrastructural costs are accounted for. Microgrids offer advantages also from an environmental and social point of view, featuring generation systems with high renewable penetration and facilitating the involvement of local communities in development projects. To further enhance microgrids economic competitiveness, it is necessary to devise innovative control strategies and design algorithms, that can ensure an optimal operating performance at the lowest overall cost. In this paper we present a new predictive design and dispatch optimization algorithm based on Mixed Integer Linear Programming (MILP). The new method is compared to a previously developed heuristic methodology, applying both to the design and yearly performance estimation of local microgrids, characterized on the basis of real data relative to a sub-Saharan African region. The potential advantages of including the proposed microgrid design method in a regional electrification planning model are illustrated in a realistic case example.
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ISSN:0306-2619
1872-9118
DOI:10.1016/j.apenergy.2018.09.194