Calculation method and system for output characteristics of photovoltaic modules

Abstract

The present invention provides an output characteristic calculation method and system for a photovoltaic assembly. The method comprises the following steps: acquiring real-time weather information of a region that the photovoltaic assembly is located in; and according to an installation parameter of the photovoltaic assembly and the acquired real-time weather information, calculating an output characteristic of the photovoltaic assembly. According to the output characteristic calculation method and system for the photovoltaic assembly, which are provided by the present invention, the real-time weather information of the region where the photovoltaic assembly is located is acquired, and then the output characteristic of the photovoltaic assembly is calculated according to the installation parameter of the photovoltaic paramter and the acquired real-time weather information. The output characteristic of the photovoltaic assembly, which is calculated by using the output characteristic calculation method and system for the photovoltaic assembly, which are provided by the present invention, is comprehensive and accurate, so that a level of evaluation a running state of a battery assembly in a photovoltaic plant that runs actually is effectively improved, power generation efficiency of the photovoltaic plant is further improved, and power generation cost is reduced.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a method and system for calculating output characteristics of photovoltaic modules. Background technique [0002] Solar photovoltaic power generation is an important part of new energy and is considered to be the most promising new energy technology in the world. At present, all countries have invested huge sums of money to compete in research and development, actively promote the process of industrialization, and vigorously develop market applications. Compared with traditional power generation methods, solar photovoltaic power generation has the advantages of large quantity, cleanness, convenient acquisition and long time, and is an inexhaustible and ideal energy source. In the long run, solar energy will be the main source of energy for human beings in the future. It is estimated that photovoltaic power generation will account for about 1% of the world'...

AI Technical Summary

Problems solved by technology

However, since the site selection of photovoltaic power plants generally only considers the illuminance factor, it is impossible to perform comprehensive and accurate calculations on the output of photovoltaic modules, and it is difficult to achieve reasonable predictions, resulting in the lack of evaluation of the operating status of battery modules in actual photovoltaic power plants. Based on the theoretical reference value of real-time weather factor data, the power generation efficiency is low and the cost of power generation is high

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