Operation Strategy Of Electric Vehicle Photovoltaic Charging Station Considering Dynamic Power Allocation

As the pollution of traditional automobile exhaust emissions and the greenhouse effect become more serious,the trend of various countries to vigorously develop electric vehicles and clean energy has become very clear.With the continuous development of smart grids today,exploring the effective combination of electric vehicles and photovoltaic facilities can fundamentally reduce carbon emissions and achieve environmental friendliness.Electric vehicle photovoltaic charging stations are a powerful way to integrate photovoltaic systems and charging equipment.It is necessary to formulate sound and reasonable operation strategies and energy management methods to reduce the impact of charging behavior on the grid on the premise of ensuring the charging requirements of users to the greatest extent.Impact.At the same time,consider the fluctuation of time-of-use electricity prices,and reduce the operating cost of the charging station as much as possible.In addition,exploring the auxiliary frequency modulation service of the charging station participating in the power grid also provides a reference for the operation mode of the charging station.This article proposes an operating strategy for photovoltaic charging stations for electric vehicles.First,the relevant structure of each part of the photovoltaic charging station is introduced.At the same time,the charging model of electric vehicles is established,and the concept of charging range is given.Then the adjustment coefficient is defined and divided into controllable and uncontrollable according to the different charging requirements of electric vehicles.Next,a dynamic power allocation algorithm is given,which can effectively combine the charging power of electric vehicles with the photovoltaic output,and improve the on-site photovoltaic absorption rate.Subsequently,in order to further improve the operating economy of the charging station,a power distribution strategy considering the real-time electricity price and the discharge behavior of electric vehicles was proposed.Through the comprehensive analysis of the simulation results,it can be seen that this strategy can effectively utilize the advantages of photovoltaic charging stations and achieve the charging goals of electric vehicle users.At the same time,it has better economic efficiency when the photovoltaic output is affected.Secondly,it analyzes the operation method of the photovoltaic charging station participating in the auxiliary frequency regulation of the power grid.Specifically,it includes three parts: the interaction of frequency modulation information,the calculation of upper and lower limits of power adjustment,and the frequency modulation power allocation strategy.The simulation form is used to verify the effectiveness of the strategy,and at the same time,the charging station can also obtain the benefits of frequency modulation through this behavior.In addition,the normal operation mode and the mode of participating in grid frequency modulation are based on real-time decision-making rather than prediction,which can avoid errors caused by prediction.It has certain value and reference significance for the operation of photovoltaic charging stations in the future.