Charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game

Abstract

The invention relates to a charge-storage integrated micro grid energy optimization scheduling method based on Stackelberg game. The method comprises steps that firstly, the photovoltaic, fan and loadoutput in an upper micro grid is predicted, the internal electricity price is initialized, and whether the number of iterations k reaches the maximum number of iterations Kmax of a differential evolution algorithm (DE) is determined; secondly, according to the obtained initial internal electricity price, an optimal charging and discharging schedule of the CSSIS is obtained and fed back to the upper micro grid, the DE algorithm is utilized to calculate an upper micro grid target function CMG satisfying upper constraint conditions, the internal electricity price is subjected to mutation and intersection to generate the offspring internal electricity price, and the corresponding offspring upper micro grid target function C'MG is calculated; and lastly, an upper micro grid target function CMGand the corresponding upper micro grid target function C'MG are determined. The method is advantaged in that mutual benefit and win-win between the micro grid and the electric vehicle charge-storageintegrated power station CSSIS can be realized, and resources in the electric vehicle charge-storage integrated power station CSSIS can be more effectively utilized.

Description

technical field [0001] The invention relates to the technical field of micro-grid operation optimization, in particular to a method for optimizing the energy scheduling of a micro-grid integrated power station with charging, swapping and storing based on the Stackelberg game. Background technique [0002] At present, most researches on optimal scheduling of microgrids consider energy storage system as a flexible and schedulable object, which can be used to smooth power fluctuations during peak shaving and valley filling, or arbitrage with low storage and high power generation to achieve optimal operation. There are also some studies that consider the access of electric vehicles, and use electric vehicles as single energy storage or integrated into charging and swapping stations to play the role of energy storage systems. The exploration is not deep enough, and it is difficult to reflect the difference between charging and swapping stations and ordinary energy storage station...

AI Technical Summary

Problems solved by technology

There are also some studies that consider the access of electric vehicles, and use electric vehicles as single energy storage or integrated into charging and swapping stations to play the role of energy storage systems. The research is not deep enough, and it is difficult to reflect the difference between charging and swapping stations and ordinary energy storage stations

It has also been proposed to design electric vehicle charging stations, battery swapping stations and energy storage stations as integrated stations and integrate them into microgrids to participate in the economic operation of microgrids. The charging and discharging status and power of the charging and discharging device are controlled by the microgrid dispatching center, without fully considering the interests and wishes of the BSS

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