Control module and system capable of realizing Domino type automatic snow melting of photovoltaic modules

A technology of photovoltaic modules and control modules, applied in photovoltaic modules, photovoltaic power generation, electric vehicles, etc., can solve the problems of hidden safety hazards, high costs, time-consuming and laborious roof operations, and achieve the goal of improving snow melting efficiency and reducing snow melting time. Effect

Active Publication Date: 2019-09-06
INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Control module and system capable of realizing Domino type automatic snow melting of photovoltaic modules
  • Control module and system capable of realizing Domino type automatic snow melting of photovoltaic modules
  • Control module and system capable of realizing Domino type automatic snow melting of photovoltaic modules

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] A photovoltaic power supply control module proposed in this embodiment includes: M photovoltaic interfaces, each photovoltaic interface is used to connect to a photovoltaic module;

[0054] The photovoltaic power supply control module includes at least a first working state and a second working state:

[0055] In the first working state, the photovoltaic modules connected to the first to the Mth photovoltaic interfaces are all in the power supply mode and supply power to the external load;

[0056] In the second working state, when the photovoltaic components connected to the kth photovoltaic interface are in load mode, the photovoltaic components connected to the first to k-1 photovoltaic interfaces are all in power supply mode, and the first to k-1 photovoltaic The photovoltaic module connected to the interface supplies power to the photovoltaic module connected to the kth photovoltaic interface, 2≤k≤M.

[0057] Specifically, in this embodiment, in the second working...

Embodiment 2

[0060] Compared with Embodiment 1, in this embodiment, the photovoltaic power supply control module further includes a power interface for connecting to a power supply. In the second working state, when the photovoltaic component connected to the first photovoltaic interface is in the load mode, the power supply connected to the power supply interface supplies power to the photovoltaic component connected to the first photovoltaic interface. In this way, the automation of the photovoltaic modules connected to the first photovoltaic interface is further guaranteed.

[0061] Specifically, in this embodiment, in the second working state, when the photovoltaic module connected to the kth photovoltaic interface is in the load mode, the power supply connected to the power supply interface, the power supply connected to the first to k-1th photovoltaic interfaces The photovoltaic modules are powered by the photovoltaic modules connected to the kth photovoltaic interface, 2≤k≤M. In th...

Embodiment 3

[0064] refer to figure 1 , the present invention proposes a system capable of realizing Domino-style automation of photovoltaic modules, including the photovoltaic power supply control module provided in Embodiment 1, and also includes a controller and M photovoltaic modules.

[0065] The M photovoltaic modules correspond to the M photovoltaic interfaces of the photovoltaic power supply control module, and each photovoltaic interface is connected to the corresponding photovoltaic module, that is, the first photovoltaic interface is connected to the first photovoltaic module X1, and the second photovoltaic interface is connected to the second photovoltaic module X2. By analogy, the Mth photovoltaic interface is connected to the Mth photovoltaic module.

[0066] The controller is connected with the photovoltaic power supply control module, and is used to control the photovoltaic power supply control module to switch the working state, and is used to control the photovoltaic pow...

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Abstract

The invention provides a system capable of realizing Domino type automatic snow melting of photovoltaic modules. The system comprises a controller, the M photovoltaic modules and a photovoltaic powersupply control module; the photovoltaic power supply control module at least has a first working state and a second working state; and in the second working state, when the photovoltaic module connected with a kth photovoltaic interface is in a load mode and the photovoltaic modules connected with first to (k-1)th photovoltaic interfaces supply power to the photovoltaic module connected with the kth photovoltaic interface, k is greater than or equal to 2 and less than or equal to M. The M photovoltaic modules are correspondingly connected with the M photovoltaic interfaces of the photovoltaicpower supply control module; and the controller is connected with the photovoltaic power supply control module and is used for controlling a working state of the photovoltaic power supply control module. The power supply amount is gradually increased, so that the Domino effect is realized, the snow melting efficiency is improved, and the snow melting time is shortened. The system is especially beneficial to the improvement of working time and power generation benefit of photovoltaic power generation of a roof photovoltaic power generation system in a 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...

Claims

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Application Information

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IPC IPC(8): H02J7/35H02S40/12
CPCH02J7/35H02S40/12Y02B10/10Y02E10/56H02S40/44
Inventor 郑佳楠刘文杨·贾斯特斯·因根霍夫刘文俊张昕昱
Owner INST OF ADVANCED TECH UNIV OF SCI & TECH OF CHINA
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