Energy optimization method and device for light storage type electric vehicle charging station

Abstract

The invention provides an energy optimization method and device for a light storage type electric vehicle charging station. According to the method and device, a cost coefficient is obtained; the costcoefficient is substituted into a pre-constructed energy optimization model, and the model is solved, so that an energy optimization result can be obtained. The energy optimization model comprises anobjecive function and a constraint condition, wherein the objective and is constructed by taking the minimum total energy consumption cost of the light storage type electric vehicle charging stationas an objective. According to the method and device of the invention, carbon emission during the operation of the light storage type electric vehicle charging station is considered, so that the obtained energy optimization result can reduce carbon emission treatment cost; the pre-constructed energy optimization model is solved by using a particle swarm algorithm, so that the convergence rate of the particle swarm algorithm is improved, and therefore, a better convergence effect can be obtained, and operation profit requirements and environmental pollution reduction requirements are well balanced; renewable energy sources can be utilized to generate power to the maximum extent on site; the operation cost of the light storage type electric vehicle charging station is reduced; the capacity configuration of energy storage equipment can be optimized; and initial investment is reduced.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to an energy optimization method and device for a light-storage electric vehicle charging station. Background technique [0002] An electric vehicle charging station that integrates photovoltaic power generation and energy storage equipment and is connected to the distribution network, hereinafter referred to as a solar-storage electric vehicle charging station, has the functions of actively absorbing renewable energy, improving the utilization rate of electric energy, and coordinating with the grid for "peak shaving". Valley filling" to enhance the stability of the power grid, and has considerable industrial application prospects. In order to give full play to the advantages of solar-storage electric vehicle charging stations, the energy management method needs to focus on design and optimization. The existing energy management method for solar-storage electric vehicle c...

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Problems solved by technology

[0003] In order to overcome the problem of high cost of controlling carbon emissions caused by energy optimization results in the above-mentioned prior art, the present invention provides an energy optimization method and device for a solar-storage electric vehicle charging station, which can obtain mains power output, photovoltaic output, and energy storage equipment output and the cost coefficient of electric vehicle output; the cost coefficient is brought into the pre-built energy optimization model, and the particle swarm algorithm is used to solve it, and the energy optimization result is obtained; the energy optimization model includes: the total energy consumption of the solar-storage electric vehicle charging station The objective function and constraint conditions constructed with the goal of minimizing the cost, where the total energy cost includes the output cost of mains power, photovoltaic output cost, energy storage equipment output cost and electric vehicle output cost

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