A method and device for optimizing photovoltaic charging station integrated system

Abstract

The invention belongs to the technical field of a smart power grid and discloses a method and device for optimizing a photovoltaic charging station integrated system. The method concretely comprises the steps of: firstly, determining a target function used for configuring hardware on the photovoltaic charging station integrated system, wherein the target function at least includes performance parameters for representing the system cost and system power; determining preset constraint conditions of the performance parameters, obtaining basic data of the photovoltaic charging station integrated system; then calculating the target function according to the basic data and the constraint condition, and obtaining at least two groups of configuration results; finally, choosing the target configuration result according to the preset service demand in the at least two groups of configuration results; and carrying out hardware configuration on the photovoltaic charging station integrated system according to the hardware configuration scheme corresponding to the target configuration result. Thus, corresponding optimal hardware configuration schemes of the photovoltaic charging station integrated system in different areas under different photovoltaic utilization rates can be obtained.

Description

technical field [0001] The invention belongs to the technical field of smart grids, and in particular relates to a method and a device for optimizing an integrated system of a photovoltaic charging station. Background technique [0002] With the widespread development of electric vehicles in countries around the world, the planning and construction of charging infrastructure has received more attention from the Chinese government. At present, the primary energy on the power generation side of my country's power system is still dominated by coal (accounting for about 75% to 80%). Electric vehicles are directly connected to the grid for charging through the charging infrastructure, and the actual indirect carbon emissions generated are no more than those of traditional fuel vehicles. lower, and it is difficult to reduce dependence on traditional fossil fuels. In this case, there are two ways to achieve low-carbon in the true sense: one is to vigorously develop renewable energy...

AI Technical Summary

Problems solved by technology

[0005] However, in the existing technology, the complementary benefits of the power generation of photovoltaic battery packs and the integration of energy storage battery packs and electric vehicle replacement stations are only elaborated from three aspects: the network structure of the integrated mode, the economic benefits of integrated applications, and the operating effects of integrated utilization. The advantages of this integration method fail to solve the problem of optimal configuration of each component unit in the charging station containing photovoltaic battery packs

[0006] In order to comprehensively consider the economic benefits and environmental benefits, in the planning of the photovoltaic charging station integrated system, on the one hand, it is necessary to reduce the construction and operation costs as much as possible; (Because the charging energy of electric vehicles comes from the grid system on the one hand, and from the photovoltaic battery pack on the other hand, if the charging energy of electric vehicles comes from the grid system less, then more from the photovoltaic battery pack), This is a multi-objective optimization problem yet to be solved. However, a method for determining the optimal hardware configuration of photovoltaic charging station integrated systems in different regions under different photovoltaic utilization rates has not yet been proposed, and different regions cannot determine the optimal hardware configuration. The best configuration for the area

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