A heterogeneous offshore island microgrid system and its distributed energy trading method

Abstract

The invention discloses a heterogeneous ocean isolated island microgrid system and a distributed energy trading method thereof, belonging to the field of ocean isolated island microgrid energy management. The system includes a power generation island, a production island and a load island, and the method includes: adopting a robust optimization method To deal with the uncertainty of renewable energy power generation, the two-way interaction process between the aggregators in the power generation island, production island and load island is realized through a dynamic non-cooperative game framework, and a distributed iterative algorithm is designed to find the Nash equilibrium strategy, that is, to find Optimal power supply and price of power generation island, optimal power purchase, hydrogen supply and water supply, optimal hydrogen price and water price of production island, and optimal power purchase, hydrogen purchase and purchase of load island Water volume, optimal load energy consumption, while minimizing the total cost of each aggregator in the generation island, production island and load island. In this way, the present invention can effectively solve the problem of multi-energy supply in the micro-grid of ocean-going islands, and ensure the economical and efficient operation of the micro-grid system of heterogeneous ocean-going islands.

Description

technical field [0001] The invention belongs to the field of ocean isolated island microgrid energy management, and more particularly relates to a heterogeneous ocean isolated island microgrid system and a distributed energy transaction method. Background technique [0002] There are many ocean-going islands on the earth, which are not only defense outposts, but also symbols of national sovereignty, and an important guarantee for the integrity of national territory and sovereignty. Providing a stable energy supply for ocean-going islands is crucial to the work and life of island residents. Due to the distant distance from the mainland, it is difficult for the pelagic island to be directly connected to the main power grid on the mainland, and the scale and resource distribution of the pelagic island are not uniform. There are three types of pelagic islands, namely, the power generation island, the production island and the load island. A large number of renewable energy gene...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a heterogeneous offshore island microgrid system and its distributed energy trading method, aiming at solving the problem of low operating reliability of the existing oceanic island microgrid energy management method, which cannot provide users with The problem of providing a stable and reliable multi-energy supply

Images