With the increasingly stringent requirements for carbon emissions, traditional fuel vehicles have been strongly impacted. Therefore, electric vehicles with zero carbon emissions have subsequently emerged. In the process of purchasing new cars, more and more people choose electric vehicles as their first choice because of the low carbon, energy saving and environmental protection characteristics of electric vehicles in the use process. In order to promote electric vehicles to become the first choice for people to buy cars, the state gives certain purchase subsidies to users who buy electric vehicles, and implements an unlimited number policy for electric vehicles driving on urban roads to promote people's consumption of electric vehicles.
Changes in the impact of energy supply; With the number of electric vehicles increasing year by year, the proportion of electric energy consumed by electric vehicle charging in the total social electricity consumption is gradually increasing. The charging behavior of electric vehicles lacks standardized management, resulting in disordered charging behavior. Due to the disordered charging of electric vehicles, there will be peak charging of electric vehicles at a certain time, which will lead to peak power consumption in the grid and increase the load of the grid. Therefore, in the face of the increase of power grid load, it is easy to reduce the utilization rate of power grid equipment and bring unnecessary waste by increasing the power grid construction and increasing the installed capacity to relieve the power grid pressure.
Stable operation; The randomness of a large number of electric vehicles in the charging process leads to large fluctuations in the power consumption of the grid. The load of the grid fluctuates from high to low, which reduces the stability of the grid system operation and control. A large number of electric vehicles are connected to the power grid in disorder, resulting in the reduction of the stability of the power grid. When the excessive electric energy is occupied by the charging of electric vehicles and the grid voltage is too low, most of the electric appliances will not work properly.
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