Intelligent grid electric power injection system and method based on V2G (vehicle-to-grid)

Abstract

The invention provides an intelligent grid electric power injection system and method based on a V2G (vehicle-to-grid). The system comprises an electric power management center unit, an electric powercompany unit, an aggregation gateway unit, at least one electric automobile unit and a V2G communication network unit, the electric power management center unit executes system initialization and newuser registration, the electric power company unit generates a first electric power recovery request packet, and / or analyzes and calculates total electricity of time slot recovery and verifies effectiveness of the total electricity, the aggregation gateway unit generates a second electric power recovery request packet, and / or generates a second electric power recovery response packet, the electric automobile units generate a first electric power recovery response packet, and the V2G communication network unit is used for communication and / or electric energy transfer between the electric powercompany unit and the aggregation gateway unit and among the aggregation gateway unit and the electric automobile units. According to the intelligent grid electric power injection system and method based on the V2G, energy utilization rate is increased by the aid of the advantages of an internet of vehicles and an intelligent grid, privacies of users are protected, and the system has excellent popularization and application prospects.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a V2G-based smart grid power injection system and method. Background technique [0002] As a representative use case of 5G, an important goal of smart grid is to improve energy utilization. With the rapid development of the Internet of Things technology, the research of the Internet of Vehicles has also received great attention, and the combination of the Internet of Vehicles and the smart grid is of great significance. In the smart grid, in order to meet the demand for electric energy of a large number of users in real time, it is of great practical significance to use a large number of electric vehicles in the Internet of Vehicles as a backup device for storing electric energy. During the low peak period of electricity consumption, the electric vehicle can be charged through the smart grid while it is parked; during the peak period of electricity consumption, the ...

AI Technical Summary

Problems solved by technology

Due to the sensitivity of transactions in the smart grid and the power consumption of electric vehicles involving user privacy, it is necessary to ensure that the power company can only obtain the total power injected by electric vehicles, and cannot obtain the power injection share of a certain time slot

In 2017, Mahmoud et al. studied power injection security in smart grids, but Zhang et al. pointed out that Mahmoud et al.'s scheme could not protect user privacy

The computational complexity of this scheme is very high due to the bilinear pairing

In addition, since the electric energy storage unit does not aggregate the power injection data, the communication efficiency of the scheme is relatively low

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