Multi-energy resource ship micro-grid real-time energy optimal scheduling method

Abstract

The invention aims to provide a multi-energy resource ship micro-grid real-time energy optimal scheduling method, which comprises the steps of S1, constructing an output power prediction model of a support vector machine ship solar power generation unit based on simulated annealing; S2, acquiring energy storage state of charge (SOC) in real time on the basis of predicting the photovoltaic real-time output power when a load is stable, dividing an operating mode of the system into a plurality of modes under two indexes MinSOCbat and MaxSCObat of energy storage, then establishing a system model and stable operation boundary conditions of each power generation unit, establishing a multi-objective function and a constraint condition function which take the system operation stability and maximum energy saving as an optimization objective, and realizing optimal distribution of the output power of different power generation units at the various different operating modes by adopting a genetic algorithm and a particle swarm algorithm; and S3, constructing a virtual inertia element following inertia properties of a diesel generator when the load suddenly changes.

Description

technical field [0001] The invention relates to the planning, operation and management of a multi-energy ship micro-grid composed of solar energy, diesel generators and energy storage systems, especially for the real-time optimal scheduling of micro-grid energy when the load changes suddenly under the condition of multiple working conditions of the ship method. It belongs to the field of ship power system. Background technique [0002] With the continuous development of the global economy, energy and environmental issues have become increasingly prominent. In order to effectively control global warming, a wave of green is being set off around the world. Energy conservation and emission reduction has become the focus of the world. Among them, reducing marine pollution has become one of the frontier research directions of relevant scholars at home and abroad. At present, developed countries such as the United States, Japan, Germany, Australia, and the United Kingdom all ...

AI Technical Summary

Problems solved by technology

[0006] However, in the multi-energy ship power micro-grid structure, due to the existence of solar intermittent power supply, diesel generator continuous power supply and lithium battery energy storage device, their output voltage regulation characteristics and power regulation characteristics are essentially different, such as continuous The active power adjustment speed of the power supply is slow, and it cannot respond to rapid load changes. Therefore, under the condition of ensuring the continuous safety and stability of the power supply, it is obviously of great significance to optimize the distribution method for the parallel operation power of multiple energy sources with different properties.

Images