Capacity configuration method of multiple types of assemblies of photovoltaic power station by considering output characteristics

Abstract

The invention discloses a capacity configuration method of multiple types of assemblies of a photovoltaic power station by considering output characteristics. The method comprises steps of (1) selecting a photovoltaic assembly so as to obtain construction cost and maintenance cost of unit capacity of each type of photovoltaic assembly; (2) determining the total installed capacity of the photovoltaic power station; (3) obtaining the duty circle of typical weather days of each season of a planned year of a photovoltaic base; (4) carrying out recording on contribution processes of each type of the photovoltaic assembly based on periods according to the duty circle obtained in the step (3) so as to obtain the contribution process based on periods of each type of the photovoltaic assembly of unit capacity in each typical weather day of each month; (5) establishing a multi-target optimization model of capacity matching ratio of multiple types of the assemblies of the photovoltaic power station; and (6) using a multi-target optimization algorithm to solve the multi-target optimization model so as to obtain the optimal photovoltaic assembly capacity matching ratio. According to the invention, the optimal capacity matching ratio decision model of the combination of multiple types of the assemblies of the photovoltaic power station under a planned installed capacity is provided, and by use of the multi-target optimization algorithm to solve the model, the model calculation efficiency is improved.

Description

technical field [0001] The present invention relates to the field of photovoltaic power station component capacity allocation, and more specifically, relates to a photovoltaic power plant multi-type component capacity allocation method that considers output characteristics. Background technique [0002] At present, there is a lack of research on the capacity allocation of multiple types of photovoltaic power plants in the industry. Some people think that the stability of photovoltaic power generation is poor and there is no possibility of complementary output. However, through the data analysis of the Gonghe photovoltaic base in the upper reaches of the Yellow River, there are differences in the output process of photovoltaic modules under different types of ratios in each typical weather day, and the multi-type modules of photovoltaic power plants have the characteristics of complementary output. At the same time, the unit scale construction cost and maintenance cost of dif...

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Problems solved by technology

[0002] At present, there is a lack of research on the capacity allocation of multiple types of photovoltaic power plants in the industry. Some people think that the stability of photovoltaic power generation is poor and there is no possibility of complementary output.

However, through the data analysis of the Gonghe photovoltaic base in the upper reaches of the Yellow River, there are differences in the output process of photovoltaic modules in each typical weather day under different types of ratios, and the multi-type modules of photovoltaic power stations have the characteristics of complementary output.

At the same time, the unit scale construction cost and maintenance cost of different types of photovoltaic modules

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