Electric vehicle charging and discharging control method, device and equipment and storage medium

Abstract

The invention discloses an electric vehicle charging and discharging control method, device and equipment and a storage medium, and the method comprises the steps: solving the total network loss caused by the total charging and discharging power of an electric vehicle to a power distribution network connected to a target charging station through employing the total charging and discharging power of the electric vehicle of the target charging station as a load; building a power distribution network loss minimum optimization model according to the total network loss and the circuit parameters ofthe power distribution network, solving the power distribution network loss minimum optimization model, and obtaining a time-phased electric vehicle charging and discharging power setting scheme in apreset period; and controlling the charging and discharging power of the electric vehicle of the target charging station by using a time-phased electric vehicle charging and discharging power settingscheme. The electric vehicle charging and discharging power of the target charging station is controlled by determining a time-phased electric vehicle charging and discharging power setting scheme inthe preset period of the target charging station by taking the minimum power distribution network loss as an optimization target, so that the influence of the electric vehicle charging and discharging behavior on the peak-valley difference of the power distribution network is reduced; and the pressure of electric vehicle charging and discharging behaviors on the power distribution network is reduced.

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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