Comprehensive energy system control method and device for coordinating electric vehicle charging stations

Abstract

The invention discloses a comprehensive energy system control method and device for coordinating an electric vehicle charging station, and the method comprises the steps: solving an upper-layer optimal scheduling model in response to a charging and discharging curve of the electric vehicle charging station, and inputting the obtained charging and discharging prices of an electric vehicle in each time period into a lower-layer charging and discharging optimal scheduling model; in response to the charging and discharging prices, obtained from the upper layer, of the electric vehicle in each time period, solving the charging and discharging optimization scheduling model of the lower layer to obtain a charging and discharging curve of the electric vehicle charging station; and judging whether the combined objective function of the integrated energy system operator and the electric vehicle charging station operator is optimal or not, and if the combined objective function is optimal, controlling the operation condition of each device in the integrated energy system based on a solving result. According to the invention, the operator of the integrated energy system and the operator of the electric vehicle charging station collaboratively participate in low-carbon scheduling of the integrated energy system, and the user information security can be protected while the operation speed is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of electric power systems, and in particular relates to a comprehensive energy system control method and device for coordinating electric vehicle charging stations. Background technique [0002] As one of the main sources of carbon emissions, the energy sector is generally considered to be the key to achieving deep emission reductions. Since integrated energy systems can complement heterogeneous energy sources such as electricity-heat-gas and help integrate renewable energy sources, they are promising in reducing the use of fossil fuels and carbon emissions. However, randomness and uncertainty limit the utilization of renewable energy. In addition, as the number of electric vehicles continues to increase, their disordered charging patterns will increase the carbon emissions and operating costs of the integrated energy system. Therefore, there are difficulties in the low-carbon economic dispatch of the integ...

AI Technical Summary

Problems solved by technology

However, limited by factors such as carbon capture efficiency and comprehensive user satisfaction, the traditional low-carbon economic scheduling method has limited effect

[0004] Electric vehicle charging stations can respond to charging electricity prices to guide users to charge in an orderly manner. However, charging stations often only respond to charging electricity prices passively, but cannot actively participate in adjusting charging electricity prices to protect their own interests. The orderly charging model used cannot be effective. Guide electric vehicles to consume renewable energy, and in the process of electric vehicle charging stations participating in the integrated energy system, the traditional low-carbon economic dispatch scheme cannot take into account the interests of both electric vehicle charging station operators and integrated energy system operators

In addition, as the maintenance of user privacy and information security has increasingly become a social consensus, the traditional way of collecting user information at charging stations will be phased out due to ignorance of user privacy and lack of protection against data attacks

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