A charging and discharging control method, device, equipment and storage medium for an electric vehicle

Abstract

The invention discloses a charging and discharging control method, device, equipment and storage medium of an electric vehicle. Firstly, the total charging and discharging power of the electric vehicle at the target charging station is used as a load to solve the problem of the total charging and discharging power of the electric vehicle connected to the target charging station. The total network loss caused by the distribution network, and then according to the total network loss and the circuit parameters of the distribution network, the optimal model for the minimum network loss of the distribution network is established, and the optimal model for the minimum network loss of the distribution network is solved to obtain the time-segmented electric current within the preset period. The vehicle charging and discharging power setting scheme, and then use the electric vehicle charging and discharging power setting scheme to control the charging and discharging power of the electric vehicle at the target charging station. The charging and discharging power of electric vehicles in the target charging station is controlled by establishing the charging and discharging power setting scheme of the charging station in the target charging station within the preset period with the optimization goal of minimizing the network loss of the distribution network, so as to reduce the impact of charging and discharging behavior of electric vehicles on power distribution The impact of network peak and valley difference can reduce the pressure brought by the charging and discharging behavior of electric vehicles on the distribution network.

Description

technical field [0001] The invention relates to the field of power systems, in particular to a charging and discharging control method, device, equipment and storage medium for electric vehicles. Background technique [0002] With distributed energy sources such as distributed power generation, distributed energy storage, and controllable loads connected to the distribution network, profound changes have taken place in the load and power structure of the distribution network, and the concept of the distribution network has also undergone a change from the traditional distribution network. , smart distribution network, active distribution network to active distribution system changes. For the power grid, the access of distributed power generation devices makes the power flow within the distribution network and between the transmission and distribution networks change from one-way to two-way; users are intermittent and have dual identities of power generation and power consump...

AI Technical Summary

Problems solved by technology

However, under the existing conditions of controlling the charging and discharging of electric vehicles with fixed charging and discharging power, due to the blindness and randomness of the charging and discharging behavior of electric vehicles, the load peak-valley difference will be caused on the basis of the original distribution network load. increase and other problems, so that the power distribution system bears greater pressure

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