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Accumulated dust thickness detection device and accumulated dust cleaning alarm system

A technology for thickness detection and dust accumulation, which is applied to measurement devices, optical devices, photovoltaic power generation, etc., can solve the problems of dust accumulation thickness error, low detection accuracy, cumbersome detection operation, etc., and achieves convenient operation for detecting dust accumulation thickness. , to avoid acquisition errors, the effect of high detection accuracy

Pending Publication Date: 2021-12-21
中国三峡新能源(集团)股份有限公司四川分公司 +1
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Problems solved by technology

[0004] In the above-mentioned process of detecting the thickness of dust accumulation, it is necessary to clean the dusty photovoltaic modules first to obtain clean photovoltaic modules, and then use two electrical parameter acquisition devices to collect the electrical parameters of the clean photovoltaic module and the target photovoltaic module respectively, so that according to the collected electrical parameters To determine the dust thickness of the target photovoltaic module, the detection operation is more cumbersome, and the detection device is more complicated
In addition, since the cleaned photovoltaic modules cannot be guaranteed to be completely free of dust accumulation, and there are problems such as low power generation of photovoltaic modules at night, in rainy weather, and windy and sandy weather, errors in the collection of electrical parameters may be introduced, which will lead to the final detection of dust thickness. There are errors and the detection accuracy is low

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  • Accumulated dust thickness detection device and accumulated dust cleaning alarm system
  • Accumulated dust thickness detection device and accumulated dust cleaning alarm system
  • Accumulated dust thickness detection device and accumulated dust cleaning alarm system

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Embodiment Construction

[0042] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0043] In the description of this application, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "left", "right", "front", "rear" etc. are based on the drawings The orientation or positional relationship shown is only for the purpose of simplifying the description, and does not indicate or imply that the device or element referred to must be provided with a specific orientation, or be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the application. limit.

[0044] In the description of this application, unless otherwise clearly stipulated and limited, the terms "installation", "connection", "connection", "fixation" and so on should...

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Abstract

The embodiment of the invention provides an accumulated dust thickness detection device and an accumulated dust cleaning alarm system, and is suitable for the technical field of photovoltaic modules. The accumulated dust thickness detection device comprises a shell (1), a light source (2), a beam splitter (3), a first photoelectric sensor (4), a second photoelectric sensor (5) and a processor (6), the light source (2), the first photoelectric sensor (4) and the processor (6) are located in the shell (1), and the beam splitter (3) is located at an opening of the shell (1). The first photoelectric sensor (4) is used for detecting the first light intensity of reflected light obtained by reflecting light emitted by the light source (2) through the beam splitter (3), the second photoelectric sensor (5) is used for detecting the second light intensity of transmitted light obtained by transmitting the light emitted by the light source (2) through the beam splitter (3), and the processor (6) is used for determining the thickness of accumulated dust according to the first light intensity and the second light intensity. The accumulated dust thickness detection device is simple in structure, relatively high in detection accuracy and relatively convenient in detection operation.

Description

technical field [0001] The application relates to the technical field of photovoltaic modules, and can realize a dust accumulation detection device and a dust accumulation cleaning alarm system. Background technique [0002] As a common way of utilizing solar energy resources, photovoltaic power generation system is widely used in the field of clean energy supply. The photovoltaic power generation system includes photovoltaic modules, and the photovoltaic modules include several photovoltaic module slices, inverters, and controllers. When the sun shines on the photovoltaic module, the photovoltaic module will generate electricity and convert light energy into electrical energy. The efficiency of converting light energy into electrical energy can be called conversion efficiency or power generation efficiency, which is one of the core factors to measure the performance of a photovoltaic power generation system. Among them, the photovoltaic modules may accumulate dust due to ...

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Application Information

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IPC IPC(8): G01B11/06H02S40/10
CPCG01B11/06H02S40/10Y02E10/50
Inventor 陆超李峰钱相宜董明知李海军鲜开义周俊宇谷湘煜
Owner 中国三峡新能源(集团)股份有限公司四川分公司
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