A method and device for optimal dispatching of island and reef integrated energy systems

Abstract

The present invention aims to provide an optimized scheduling method and device for an island reef integrated energy system in view of the defects in the prior art. In consideration of the unit combination problem of a distributed controllable generator set and a seawater desalination unit as well as the optimized charging and discharging problem of an energy storage system, an island reef integrated prediction model is constructed according to state information of the island reef integrated energy system, a future system state of the island reef integrated energy system is obtained, and future minimum total costs are obtained by means of calculation according to the future system state; the future minimum total costs are taken as a constraint condition to construct an optimized scheduling model of the island reef integrated energy system, an optimized dispatching parameter value of the island reef integrated energy system is obtained by means of calculation, a power subsystem and a fresh water subsystem are coordinated and optimized, total operating costs of the island reef integrated energy system are reduced, and the sustainable development capability of islands and reefs is improved.

Description

technical field [0001] The invention belongs to the technical field of electric power system optimization, and in particular relates to an optimal scheduling method and device for an integrated energy system of islands and reefs. Background technique [0002] With the continuous advancement of my country's strategy, governments at all levels have paid more and more attention to the development and utilization of island and reef resources and the improvement of the living conditions of island and reef residents, and the development scale and intensity of island and reef development have increased rapidly. However, due to the distance from the mainland, the development of islands and reefs is deeply restricted by the shortage of electricity and fresh water. The traditional system power supply method using a single distributed controllable generator set not only has low power supply reliability, but also relies too much on external energy input. The pollution and noise generate...

AI Technical Summary

Problems solved by technology

However, the cost of the current battery energy storage system is relatively high, and the number of charge and discharge cycles is limited. In order to prolong the service life of the battery energy storage system and enhance the safety and stability of the island and reef power supply system, it is necessary to consider the battery energy storage in the system operation scheduling model. System operation and maintenance costs

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