Abstract
With the development of the automobile industry, the extensive use of automobiles is a key factor in the global energy crisis and environmental pollution, and the clean and environmentally friendly characteristics of electric vehicles have become an ideal means to deal with these two major problems. Connecting household electric vehicles to the home will not only affect the distribution network, but also adversely affect the home electricity network. Therefore, it is necessary to connect electric vehicles to household charging load for quantitative analysis, so as to design energy control methods for electric vehicles to connect to households, and minimize the adverse effects of electric vehicles connected to household power grids. First of all, this article analyzes the uncertainty of electric vehicle access to the grid. After considering the random characteristics of electric vehicle charging load, an electric vehicle charging load model is built based on Monte Carlo simulation. Secondly, according to the electric vehicle charging load power curve obtained by the above method, combined with the daily load probability model of the grid, a household electricity model is established. Finally, based on the Particle Swarm Optimization(PSO), a family energy control method is proposed, and the optimization goal is to minimize the daily load fluctuation of the family, so as to minimize the impact of electric vehicles connected to the grid.
Highlights
The rapid development of the automobile industry has brought about many problems
When a large number of electric vehicles start charging at the same time during the original load peak time period of the system, the total load of the system will greatly increase, which will generate new load peaks, and cause greater load peak-to-valley differences, which will bring about the normal operation of the power distribution system
This paper intends to establish an electric vehicle charging model and a household energy control model, analyze the impact of its access on household daily load fluctuations, and study the control method based on the household’s charging and discharging of electric vehicles connected to households, so that the load fluctuations will reach The smallest
Summary
The rapid development of the automobile industry has brought about many problems. This paper intends to establish an electric vehicle charging model and a household energy control model, analyze the impact of its access on household daily load fluctuations, and study the control method based on the household’s charging and discharging of electric vehicles connected to households, so that the load fluctuations will reach The smallest This will improve the stability of the power supply and distribution network, that is, increase the reliability of users' electricity
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