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A method for fault identification of photovoltaic modules

A photovoltaic module and fault identification technology, applied in the monitoring of photovoltaic systems, photovoltaic modules, photovoltaic power generation, etc., can solve the problems of high cost and low efficiency, and achieve the effect of simple and efficient fault identification

Active Publication Date: 2021-02-23
CHENGDU TD TECH LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above method requires manual participation, low efficiency and high cost

Method used

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  • A method for fault identification of photovoltaic modules
  • A method for fault identification of photovoltaic modules
  • A method for fault identification of photovoltaic modules

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Embodiment Construction

[0038] In order to make the purpose, technical means and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0039] First, analyze the phenomenon when the photovoltaic module fails. After the photovoltaic module is damaged, in addition to affecting the power generation efficiency, the temperature will also rise, which is usually higher than the normal module by more than 15 degrees Celsius. Based on the above-mentioned fault phenomenon of temperature rise, in this application, the fault detection of photovoltaic modules is realized by identifying and detecting components with higher temperatures.

[0040] Specifically, if a photovoltaic module is photographed by a thermal imager, the faulty photovoltaic module will appear as a "hot spot" on the thermal imaging picture. When a hot spot appears, one or more cells are actually damaged, or, It is also possible that the en...

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Abstract

The application discloses a method for fault identification of photovoltaic modules. A flight device is equipped with a GPS module and a thermal imager. The method includes: the flight device detects the photovoltaic modules to be detected in the photovoltaic power station according to the set cruising route and cruising altitude. The area is cruised; during the cruise, the thermal imager shoots and outputs the thermal distribution map of the cruise area, and the GPS module determines and outputs the GPS coordinates when the thermal imager shoots each thermal distribution map; in the output Identifying photovoltaic components in all thermal distribution maps; identifying faulty photovoltaic components in each thermal distribution map taken, and determining the actual geographic location of the faulty photovoltaic component. By applying this application, fault identification of photovoltaic modules can be realized simply and efficiently.

Description

technical field [0001] The present application relates to photovoltaic power station technology, in particular to a method for fault identification of photovoltaic modules. Background technique [0002] Photovoltaic power station refers to a photovoltaic power generation system that uses solar energy and uses special materials such as crystalline silicon panels, inverters and other electronic components to connect to the grid and transmit power to the grid. Among them, the components that complete power generation are mainly photovoltaic modules. A photovoltaic module is composed of several cells. The English name of the cell is also called cell. The number of cells in a typical photovoltaic module is 6*10 and 6*12. figure 1 Shown is a photovoltaic module composed of 6*12 cells. A row of multiple photovoltaic modules forms a string, usually two strings form a bracket, and multiple rows of strings can also form a bracket. Such as figure 2 As shown, 4 rows of photovoltaic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/72H02S50/15G01S19/14
CPCG01N25/72G01S19/14H02S50/00Y02E10/50
Inventor 王旭
Owner CHENGDU TD TECH LTD
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