A control module and system capable of realizing domino-style automation of photovoltaic modules

Abstract

The present invention proposes a system capable of realizing Domino-style automation of photovoltaic modules, a controller, M photovoltaic modules, and a photovoltaic power supply control module; the photovoltaic power supply control module includes at least a first working state and a second working state: in the second working state In the state, when the photovoltaic module connected to the k-th photovoltaic interface is in load mode, and the photovoltaic modules connected to the first to k-1 photovoltaic interfaces provide power for the photovoltaic module connected to the k-th photovoltaic interface, 2≤k≤ M. The M photovoltaic modules are correspondingly connected to the M photovoltaic interfaces of the photovoltaic power supply control module; the controller is connected to the photovoltaic power supply control module to control the working state of the photovoltaic power supply control module. In the present invention, the Domino effect is realized by gradually increasing the power supply, which is beneficial to improving the snow melting efficiency and reducing the snow melting time. The invention is especially beneficial to improving the working time and power generation efficiency of the photovoltaic power generation system of the roof photovoltaic power generation system in the freezing season.

Description

technical field [0001] The invention relates to the technical field of photovoltaic modules, in particular to a control module and a system capable of realizing Domino-style automation of photovoltaic modules. Background technique [0002] Such as Figure 14 As shown, the rooftop photovoltaic power generation system deployed in higher latitude areas (such as Canada, Northern Europe, and Northeast China) has a daily average temperature below zero for a long period of time in a year, and often encounters system failure due to snow and freezing. The problem of power generation, while the traditional snow removal method is mainly to remove the snow on the surface of the photovoltaic panel by manual snow removal, salt spraying or spraying snow melting agent. The manual method is not only time-consuming, labor-intensive, and costly, but also poses safety hazards in roof operations. Spraying salt or spraying deicing agents is likely to cause corrosion damage to the photovoltaic mod...

AI Technical Summary

Problems solved by technology

Using manual methods is not only time-consuming, labor-intensive, and costly, but also poses safety hazards in roof operations. Spraying salt or spraying snow-melting agents is likely to cause corrosion damage to the structure of photovoltaic modules.

[0003] Due to the above problems, the efficiency of the rooftop photovoltaic power generation system is severely reduced during the freezing season, which affects the user experience and limits the further popularization of the rooftop photovoltaic power generation system.

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