Tracking type photovoltaic power generation system control method capable of identifying weather types

Abstract

The invention relates to the field of intelligent control, and discloses a tracking type photovoltaic power generation system control method capable of identifying weather types. The control method comprises the following steps: 1, acquiring weather data of a local area; 2, calculating a weather type index according to the weather data, and dividing the weather of the region into different weathertypes; 3, determining the real-time weather type of the region; 4, calculating a solar altitude angle and a solar azimuth angle; 5, selecting different tracking control modes according to weather types; 6, judging the solar altitude angle: if the solar altitude angle is greater than or equal to 10 degrees, returning to the step 2; and if the solar altitude angle is smaller than 10 degrees, stopping working. According to the tracking type photovoltaic power generation system control method capable of identifying the weather type, corresponding tracking strategies can be adopted in different weather states to obtain the maximum radiation energy, and the energy consumption for adjusting and operating the tracking system is reduced.

Description

technical field [0001] Embodiments of the present invention relate to the field of intelligent control, in particular to a control method for a tracking photovoltaic power generation system that can identify weather types. Background technique [0002] The incident total radiation is the energy source of the photovoltaic array, which directly determines the output of the photovoltaic system. There are two main factors that affect the total incident radiation of the photovoltaic array, one is the azimuth angle of the photovoltaic array, and the other is the inclination angle of the photovoltaic array relative to the horizontal plane. The installation of photovoltaic modules in the photovoltaic power generation system, in addition to the fixed type, also has an installation method that can track the position of the sun in real time, that is, the tracking type is used to obtain the maximum incident radiant energy. In the horizon coordinate system, the tracking of the sun's alt...

AI Technical Summary

Problems solved by technology

However, the differences in geographical and climate environments in different regions lead to different endowments of total solar radiation resources, and the differences in the composition distribution of solar radiation in different regions and weather climates are even more obvious. These factors make the performance of a photovoltaic power generation system in different regions vary. There are clear differences, and the best tracking method for each region is often vague

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