Optimization of a wind powered desalination and pumped hydro storage system

Segurado, Raquel and Madeira, J.F.A and Costa, Mario and Duić, Neven and Carvalho, Monica G (2016) Optimization of a wind powered desalination and pumped hydro storage system. = Optimization of a wind powered desalination and pumped hydro storage system. Applied Energy, 177. pp. 487-499. ISSN 0306-2619. Vrsta rada: ["eprint_fieldopt_article_type_article" not defined]. Kvartili JCR: Q1 (2016). Točan broj autora: 5.

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The penetration of intermittent renewable energy sources, for instances wind power, in the power system of isolated islands is limited, even when there is large potential. The wind power that cannot be directly injected in the power grid is usually curtailed. In addition, some islands need to desalinate seawater to produce fresh water, increasing the pressure on the power system, because desalination needs electricity. Nevertheless, the water scarcity problem of an island can be part of the solution of the problem of its integration of intermittent renewable energy sources. To tackle this issue, a system was proposed to use the excess wind power in desalination units and in a pumped hydro storage, resulting in an integrated power and water supply system that would minimize the wind power curtailed. This paper proposes a methodology to optimize the size and operational strategy of this wind powered desalination and pumped hydro storage system. The objective is to minimize the total annualized production costs, maximize the percentage of renewable energy sources in the total power production and minimize the wind power curtailed. To solve this optimization problem, a derivative free multiobjective optimization method (Direct MultiSearch) is used. This methodology is applied to the integrated power and water supply system proposed for the island of S. Vicente, in Cape Verde. The results show that the penetration of renewable energy sources can reach 84% with a 27% decrease of power and water production costs and 67% decrease of CO2 emissions, in relation to the values foreseen for 2020.

Item Type: Article (["eprint_fieldopt_article_type_article" not defined])
Keywords (Croatian): power and water supply; intermittent renewable energy sources integration; desalination; pumped hydro storage; direct multisearch method
Subjects: TECHNICAL SCIENCE > Mechanical Engineering
Divisions: 500 Department of Energy, Power Engineering and Environment > 510 Power Engineering and Energy Management Chair
Indexed in Web of Science: Yes
Indexed in Current Contents: Yes
Citations JCR: 9 (09.03.2018.)
Quartiles: Q1 (2016)
Date Deposited: 22 Mar 2017 13:13
Last Modified: 09 Mar 2018 12:10
URI: http://repozitorij.fsb.hr/id/eprint/7613

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