Electric vehicle charging pile management system based on space-time electricity price model

Abstract

The invention relates to an electric-automobile charging-pile management system based on a space-time electricity price mode. The electric-automobile charging-pile management system is characterized in that a power-grid real-time-scheduling management platform is connected with an electric-automobile charging-pile management device, the charging-pile space-time electricity price level is sent to the electric-automobile charging-pile management device, and meanwhile, the geographic position and the load level information of a charging pile are received; and the electric-automobile charging-pile management device is connected with an electric-automobile user client, and sends the geographic position information of the charging pile and the real-time charging price to the electric-automobile user client. According to the electric-automobile charging-pile management system based on the space-time electricity price mode, the electric-automobile charging pile is managed through a space-time electricity price mode, the influence of a random charging behavior of the electric automobile on the whole power-grid node voltage and line loading is effectively reduced, and an optimum charging scheme is provided for an electric-automobile user; and the charging cost of the user is reduced, the charging time is saved, and the service level is improved.

Description

technical field [0001] The invention belongs to the technical field of electric vehicles, in particular to an electric vehicle charging pile management system based on a space-time electricity price model. Background technique [0002] With the rapid development of new energy technologies, electric vehicles have begun to enter the family. According to the current situation of China's electric vehicles and the country's development plan for new energy, private electric vehicles will occupy a large proportion of the future private car market, and charging piles will become necessary public equipment in future residential areas. [0003] The irregular grid-connected charging of electric vehicles will aggravate the load peak-valley difference of the existing power grid. If a large number of electric vehicles are connected to the grid during the peak period of electricity consumption, it will bring serious load pressure and power quality impact on the existing grid. If If it is ...

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Problems solved by technology

[0003] The irregular grid-connected charging of electric vehicles will aggravate the load peak-valley difference of the existing power grid. If a large number of electric vehicles are connected to the grid during the peak period of electricity consumption, it will bring serious load pressure and power quality impact on the existing grid. If If it is not controlled, it will lead to overload of regional distribution transformers and lines, lower node voltage, and greatly reduce the economy, safety and reliability of distribution network operation

[0004] At present, some areas have adopted a time-of-use electricity price model for charging piles, which can promote the peak-shaving and valley-filling behavior of electric vehicle charging. However, its working mode is that all charging piles in a certain area are the same In fact, the charging behavior of electric vehicles in different regions has different impacts on the grid

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