Ocean island microgrid system and distributed periodic energy transaction method thereof

Abstract

The invention discloses an ocean island microgrid system and a distributed periodic energy transaction method thereof, and belongs to the field of ocean island microgrid energy management. The systemcomprises: an energy center for storing energy that is periodically transported from a mainland to an island and electric energy generated by renewable energy power generation on the island, and providing the electric energy for the load of an island microgrid; an aggregator for determining electric energy obtained from the energy center and an electric energy transaction price with a terminal user according to the electric energy transaction demand of the terminal user, and scheduling the charge and discharge amount of an energy storage system; the energy storage system for obtaining the electric energy from the energy center according to the scheduling of the aggregator and providing the electric energy for the terminal user; and the terminal user for determining the electric energy transaction amount with the energy storage system based on the electric energy transaction price of the aggregator. The ocean island microgrid system disclosed by the invention can maximize the benefits of the aggregator, minimize the power consumption cost of each user, preferentially meet the power consumption demands of strategic users, and ensure the reliable and economical operation of the islandmicrogrid system.

Description

technical field [0001] The invention belongs to the field of energy management of oceanic island microgrids, and more specifically relates to an oceanic island microgrid system and a distributed periodic energy trading method thereof. Background technique [0002] There are many oceanic islands on the earth. They are not only national defense outposts, but also a symbol of national sovereignty, and an important guarantee for the integrity of national territory and sovereignty. Providing a stable power supply to an ocean-going island is crucial to working and living on the island. Because the oceanic islands are far away from the mainland, it is difficult for the oceanic islands to be directly connected to the main power grid on the mainland. Therefore, part of the energy demand on ocean-going islands is supplied by distributed renewable energy generators located on or near the islands, and the other part is transported from the mainland by ships for a long period of time (u...

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Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide an oceanic island microgrid system and its distributed periodic energy trading method, aiming to solve the problem of low operating reliability of the existing oceanic island microgrid energy management method and failure to provide users with The problem of providing stable power

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