Electric vehicle ordered charging strategy and simulation method thereof

Abstract

The invention discloses an electric vehicle ordered charging strategy and a simulation method thereof. The method comprises the following steps: establishing a user side objective function; establishing a power grid side objective function; integrating the user side objective function and the power grid side objective function, and establishing an electric vehicle ordered charging model in the district; introducing constraint conditions to perfect an electric vehicle ordered charging model in the district; and realizing specific calculation and regulation according to the orderly charging model of the electric vehicle in the district. According to the technical scheme, the electric vehicle charging load in the regional power distribution network is used as a research object, the influence on the power grid node voltage and the system network loss when the electric vehicle is accessed disorderly is analyzed, then the minimum user side charging cost and the minimum power grid side load peak-valley difference are used as objective functions, the orderly charging optimization model of the electric vehicles in the districts is established, the objective function is solved by using the adaptive particle swarm optimization, an optimal electric vehicle charging mode is obtained, and the peak-valley difference of the system load can be effectively reduced.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to an orderly charging strategy for electric vehicles and a simulation method thereof. Background technique [0002] The rapid development of electric vehicles will not only bring huge changes to the transportation system, but also have a profound impact on the power system and human energy system. At present, the disorderly connection of large-scale electric vehicles to the power grid has more and more serious impact on the power grid, which has affected the safe and stable operation of the power grid. It is necessary to conduct in-depth research on the orderly charging control strategy of electric vehicles. However, the disorderly access of large-scale electric vehicles to the power system will lead to an increase in the system load, increase the difficulty of optimizing the operation of the power grid, and seriously affect the power quality of the system, and br...

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Problems solved by technology

[0006] The present invention mainly solves the technical problem that the original technical scheme is not aimed at the basic angle optimization of user charging fee, power grid load peak-valley difference and daily load variance value, and the effect is lack of pertinence, and provides an orderly charging strategy for electric vehicles and its The simulation method takes the electric vehicle charging load in the regional distribution network as the research object, analyzes the impact of the disorderly access of electric vehicles on the grid node voltage and system network loss, and then takes the minimum charging cost on the user side and the peak load on the grid side The minimum valley difference is the objective function, and the orderly charging optimization model of electric vehicles in the area is established, and the adaptive particle swarm optimization algorithm is used to solve the objective function to obtain the optimal charging mode of electric vehicles, which can effectively reduce the peak-valley difference of the system load, so that the system can Achieving economic stability

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