Multi-factor based photovoltaic power station middle-and-long-term generating capacity prediction method

Abstract

The invention discloses a multi-factor based photovoltaic power station middle-and-long-term generating capacity prediction method including the following steps of A) based on the data of an environment detector and a weather station, acquiring the power station dimensions, inclination angles, and historical daily level radiation quantities, and selecting the number of days in the month, the date sequence number in a year, solar constants, and the ground reflectivity; B) calculating the annual inclined plane total radiation quantity I; C) calculating the comprehensive efficiency of a photovoltaic power plant; D) calculating the annual effective hour number of the photovoltaic power plant; E) calculating the generating capacity of the first year; and F) calculating the generating capacity value of the nth year and the total generating capacity for many years of the photovoltaic power plant. The prediction method is simple in calculation, efficient, and stable, and has good prediction benefits and good application prospects.

Description

technical field [0001] The invention relates to the technical field of forecasting the power generation of photovoltaic power plants, in particular to a method for predicting the medium and long-term power generation of photovoltaic power plants based on multiple factors. Background technique [0002] With the large-scale application and investment of photovoltaic power plants, the preliminary planning and post-operation and maintenance of photovoltaic power plants are particularly important. Now the algorithms are relatively complicated and the operability is not enough. There is no simple gadget that allows investors to always grasp the power generation of photovoltaic power plants Quantity or income, causing investors to worry about future income. The important factor of income is the power generation. There are different methods for calculating the power generation of photovoltaic power plants in the planning and design stage of photovoltaic power plants and after the com...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the problems that the existing photovoltaic power station power generation prediction is relatively complicated, the operability is not enough, the accuracy is poor, and it cannot provide reliable reference for photovoltaic power station investors to predict the needs and correct the deviation of the power station in operation

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