Cooling control method and system of photovoltaic module and computer storage medium

Abstract

The invention discloses a cooling control method and system for a photovoltaic module and a computer storage medium. The method comprises the steps: the backboard temperature of a photovoltaic module is obtained; when the backboard temperature is larger than a high-temperature threshold value, the water temperature in a water storage device is obtained; and when the water temperature is lower than the temperature of a backboard, water in the water storage device is conveyed to a water spraying device arranged on the back of the photovoltaic module so as to spray water to the back of the photovoltaic module through the water spraying device. According to the invention, the temperature of the backboard of the photovoltaic module is obtained, and water is sprayed to the back surface of the photovoltaic module when the temperature of the backboard is high and is greater than the water temperature of the water storage device, so that the photovoltaic module is cooled, the light absorption of the photovoltaic module is not affected, and the power generation amount of the photovoltaic module is ensured.

Description

technical field [0001] The invention relates to the technical field of photovoltaic modules, in particular to a method, system and computer storage medium for controlling the cooling of photovoltaic modules. Background technique [0002] The power generation power of modules in photovoltaic power plants is greatly affected by temperature. Excessively high temperatures will cause power generation losses to modules. For example, the specifications of photovoltaic modules are generally 25°C, while the ambient temperature in summer and other seasons is usually above 40°C. It can even reach 60°C to 70°C. If the temperature is too high, the power generation of photovoltaic modules will be reduced, reducing the economical efficiency of photovoltaic modules. There are two main factors for power generation loss caused by temperature: module power temperature coefficient and cell temperature. On the whole, cooling photovoltaic modules can effectively increase the power generation of ...

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Problems solved by technology

[0003] When cooling photovoltaic modules, water is usually sprayed on the surface of the module to cool down through the evaporation of water, but this method will form a water curtain or water droplets on the surface of the module, and the water curtain or water droplets will affect the absorption of light by the module , to reduce the amount of radiation received by the module, but will reduce the power generation of the photovoltaic module

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