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Detection method and apparatus for cleanliness of photovoltaic panel

A detection method and detection device technology, applied in the monitoring of photovoltaic systems, photovoltaic power generation, photovoltaic modules, etc., can solve problems such as the inability to quickly measure the cleanliness of photovoltaic panels, accurately give real-time quantified data, and the impact of photovoltaic panels on power generation efficiency. , to achieve the effect of non-destructive speed measurement, light weight and high reliability

Inactive Publication Date: 2016-11-23
HANGZHOU CHITIC VANA OPTOELECTRONICS TECH
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to receive more light, most of the photovoltaic panels are placed outdoors, and often there will be dust on the photovoltaic panels, which will have a serious impact on the power generation efficiency of the photovoltaic panels
In order for the staff to clean up the dust accumulated on the photovoltaic panels in a timely manner, it is particularly important to detect the cleanliness of the photovoltaic panels. However, in the existing technology, it is not possible to quickly measure the cleanliness of the photovoltaic panels and accurately provide real-time quantitative data.

Method used

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  • Detection method and apparatus for cleanliness of photovoltaic panel
  • Detection method and apparatus for cleanliness of photovoltaic panel
  • Detection method and apparatus for cleanliness of photovoltaic panel

Examples

Experimental program
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Effect test

Embodiment 1

[0075] Example 1: Changes in the cleanliness of multiple photovoltaic panels at the same location within one month

[0076] 1. Experimental method

[0077] The experiment uses a He-Ne laser (wavelength 632.8nm), the detector uses a silicon photocell, the numerical aperture of the converging lens is NA=0.45, the photovoltaic panel adopts a polysilicon solar panel 17.5V / 10W 1PCS, and the size of the photovoltaic panel is 340*290* 25. Fix the photovoltaic panel with a bracket so that the angle between the photovoltaic panel and the horizontal plane is 30°, and the height from the horizontal plane is 50cm, and fix the cleanliness sensor on the side of the photovoltaic panel. Connect the peripheral circuits of various parts such as cleanliness sensors and photovoltaic panels.

[0078] The experiment uses 5 photovoltaic panels of the same model, lasers of the same power and model, and the incident angle of the laser beam emitted by the laser to the photovoltaic panels is 30°, and ...

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Abstract

The invention specifically relates to a detection method and apparatus for the cleanliness of a photovoltaic panel, belonging to the field of detection technology for the cleanliness of solar photovoltaic panels. The method detects the cleanliness of the photovoltaic panel by measuring the intensity of modulated laser beam signals scattered by the photovoltaic panel. The matching apparatus comprises a cleanliness sensor and a signal processing device. The cleanliness sensor comprises a laser, a modulation device, a convergent lens and a detector and is mainly used for accomplishing collection of scattered light and photoelectric conversion; and the signal processing device comprises a DC regulated power supply, a signal processing circuit, a microprocessor and a communication circuit and mainly used for AD conversion, amplification and transmission of electrical signals. The detection method and apparatus have the advantages of high measurement precision, simple structure, cost performance, practicability, easiness in operation, strong anti-interference capability, capacity of easily realizing on-line measurement, etc.

Description

technical field [0001] The invention relates to a cleanliness detection technology of a solar photovoltaic panel, in particular to a method and a device for detecting the cleanliness of a photovoltaic panel by light scattering. Background technique [0002] Solar energy generally refers to the radiant energy of sunlight. With the decrease of fossil fuels, solar energy has become an important part of energy used by human beings and has been continuously developed. Photovoltaic power generation technology has gradually developed and matured, which can generate new and pollution-free renewable energy, and has been widely used at home and abroad. [0003] As the carrier of photoelectric conversion, photovoltaic panels play a vital role in the efficiency of photoelectric conversion. In order to receive more light, photovoltaic panels are mostly placed outdoors, and dust often falls on photovoltaic panels, which will have a serious impact on the power generation efficiency of pho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/49H02S50/15
CPCY02E10/50
Inventor 陈军松陈华才毛拾文朱周洪于朝凯周晓明肖燕胡军奇
Owner HANGZHOU CHITIC VANA OPTOELECTRONICS TECH
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