Orderly charging and discharging control method for residential quarter electric vehicles

Abstract

The invention discloses an orderly charging and discharging control method for residential quarter electric vehicles, and belongs to the technical field of electric vehicle charging control. Based onthe peak-valley time-of-use electricity price, the method can calculate the charging and discharging instruction behavior conforming to the user benefit according to the final return time of the ownerof the electric vehicle and the remaining electric quantity during return. On the premise of meeting the travel requirements of users and respecting the willingness of the users to participate in discharge scheduling, valley-time reverse-sequence charging and peak-time feeding considering power limitation are carried out on the electric vehicles. According to the method, the actual vehicle use cost of an electric vehicle owner can be effectively reduced, and the vehicle use satisfaction is improved; and meanwhile, the electrical load curve of the community power distribution network can be stabilized, and the negative influence of electric vehicle charging on the power grid is greatly reduced. The method is simple in calculation, is high in efficiency, and can meet the daily charging demands of the householder electric vehicle under the condition that the power distribution capacity of a community is not increased.

Description

technical field [0001] The invention belongs to the technical field of charging control of electric vehicles, and in particular relates to a method for controlling orderly charging and discharging of electric vehicles in a residential area. Background technique [0002] With the increasingly serious environmental problems, the government has stepped up efforts to promote and support the electric vehicle industry, so the number of electric vehicles has increased significantly in recent years. However, due to the impact of residents' travel patterns, electric vehicle charging has obvious aggregation characteristics, and the charging behavior of a large number of vehicle owners during peak hours will increase the local power consumption burden of the distribution network. At the same time, because the construction of intelligent power distribution residential quarters in my country is not perfect enough, the power supply capacity of existing quarters may not be able to meet the...

AI Technical Summary

Problems solved by technology

[0004] Scholars have proposed some charging control methods, such as based on the time-of-use electricity price period, with the earliest initial charging time and the lowest charging cost as the optimization goal, but it is very easy to generate a new peak of electricity consumption at the initial stage of the off-peak electricity price, The available battery capacity is not fully utilized during the time period

At the same time, the car is always charged at the rated power, which is not conducive to smoothing the power load curve of the distribution network in the community

Also, existing studies tend to ignore the positive impact of EVs feeding power to the grid

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