Power grid coordination control method based on hydroelectric power-photoelectricity complementation

Abstract

The invention provides a power grid coordination control method based on hydroelectric power-photoelectricity complementation. The method comprises the following steps of: predicting the photoelectricdaily output of photovoltaic power stations around a hydropower station, and obtaining a first photovoltaic daily output curve; obtaining a rated daily output curve of the hydropower station; establishing a hydroelectric power-photoelectricity complementation daily scheduling model, determining an objective function, a constraint condition, a first photovoltaic daily output curve and a rated daily output curve of the power station of the model, and obtaining a first hydroelectric power-photoelectricity complementation total output curve through the hydroelectric power-photoelectricity complementation daily scheduling model; obtaining the actual photoelectric daily output of the photovoltaic power station, and obtaining a second photovoltaic daily output curve; and generating a second hydroelectric power-photoelectricity complementary total output curve through the hydroelectric power-photoelectricity complementation daily scheduling model on the basis of the rated daily output curve of the hydropower station and the second photovoltaic daily output curve, and iteratively adjusting the effective output of the hydropower station according to the first hydroelectric power-photoelectricity complementation total output curve, so as to make the shape of the second hydroelectric power-photoelectricity complementation total output curve to be consistent with that of the first hydroelectric power-photoelectricity complementation total output curve.

Description

technical field [0001] The invention relates to the technical field of electric power coordination, in particular to a power grid coordination control method based on water and light complementarity. Background technique [0002] Photovoltaic power generation is a power generation method that uses solar cells to convert light energy into electrical energy based on the principle of photovoltaic effect. Photovoltaic power generation has the characteristics of safety, reliability, pollution-free, and no risk of depletion. Moreover, photovoltaic power stations do not need to consume fuel, and can supply power for the entire network or on-site power generation. It is a power generation method with obvious advantages. However, since photovoltaic power generation is greatly affected by factors such as day and night, seasons, and weather, its power generation output is random, volatile, and intermittent, which can easily cause instability in the power system and even the possibility...

AI Technical Summary

Problems solved by technology

However, since photovoltaic power generation is greatly affected by factors such as day and night, seasons, and weather, its power generation output is random, volatile, and intermittent, which can easily cause instability in the power system and even the possibility of power outages.

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