Abstract
There is a lack of effective liaison between pelagic island microgrids, leading to inflexible transmission of energy between islands. However, the interconnection mode by submarine cables is not economical due to the long distances between islands. Therefore, an energy supply mode based on allelectric vessels is proposed in this paper. The framework and working principle of the mode are first introduced. A two-stage optimization model is established considering the coordinated operation of island microgrid and the swapping plan of all-electric vessels. The simulation results show that the proposed transmission mode can reduce overall costs and the proposed scheduling strategy can promote renewable energy consumption and reduce operation costs.
Highlights
Pelagic islands and the surrounding affiliated islands are rich in wind/solar energy resources
If renewable energy (RE) equipment is fully placed on these islands too, it is difficult to separate the generation units from residential areas and other equipment to be separated from the residential area of the island
This paper proposes an energy supply mode based on all-electric vessels
Summary
Pelagic islands and the surrounding affiliated islands are rich in wind/solar energy resources. Different from the traditional power station charging mode, the main function of the power station in pelagic islands is to store fluctuating and unstable RE sources and distribute them to RIs in time, which will help to maximize the consumption of RE and reduce the island fuel consumption. In this process, the coordination of the charge and discharge strategy with the scheduling of allelectric vessels is important.
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