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Soiling detection apparatus and method

A technology of pollution detection and equipment, applied in the direction of energy storage, photovoltaic system monitoring, optical testing flaws/defects, etc., can solve problems such as expensive, mechanically complex, prone to failure, etc., to eliminate cleaning needs, improve efficiency, and reduce cleaning the desired effect

Pending Publication Date: 2020-10-30
DUBAI ELECTRICITY AND WATER AUTHORITY
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such arrangements can be expensive, mechanically complex and prone to failure

Method used

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  • Soiling detection apparatus and method
  • Soiling detection apparatus and method

Examples

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Embodiment Construction

[0027] A pollution detection device and a pollution detection method are disclosed. In the following description, numerous specific details are presented in order to provide a thorough understanding of examples of the present disclosure. It will be apparent, however, to one skilled in the art that these specific details need not be employed to practice examples of the present disclosure. On the contrary, specific details known to those skilled in the art are omitted in order to clearly present the example.

[0028] figure 1 is a schematic diagram of the arrangement for measuring pollution using two photovoltaic panels. As mentioned above, previous arrangements for detecting pollution may use two photovoltaic panels to detect pollution levels. The previous arrangement included a first photovoltaic module 10 and a second photovoltaic module 12 . The first PV module 10 includes a first PV panel, and the second PV module 12 includes a second PV panel. The first PV panel is po...

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Abstract

A soiling detection apparatus (20) operable to detect a soiling level of a photovoltaic panel (22). The apparatus comprising a photovoltaic panel (22) operable to generate an electrical output in response to light being incident on the panel and in dependence upon a soiling level of the photovoltaic panel. The apparatus comprises a pyranometer (24) operable to generate an irradiance signal which relates to an irradiance level of light incident on the pyranometer (24). The pyranometer (24) is positioned with respect to the photovoltaic panel (22) such that the photovoltaic panel (22) and the pyranometer (24) can receive substantially the same solar radiation level as each other. The apparatus comprises calculating means operable to calculate a reference output value from the irradiance signal which relates to an ideal electrical output of the photovoltaic panel (22) at a predetermined operating condition. The apparatus further comprises measuring means operable to measure the electricaloutput of the photovoltaic panel (22) at the predetermined operating condition, and comparing means operable to compare the measured electrical output of the photovoltaic panel (22) at the predetermined operating condition with the reference output value so as to generate a comparison value. The apparatus comprises outputting means operable to output a cleaning signal when the comparison value isgreater than a cleaning threshold value.

Description

technical field [0001] The present disclosure relates to a pollution detection device and method. Background technique [0002] Solar photovoltaic (PV) installations in arid and desert regions are potentially affected by frequent pollution caused by the deposition of suspended dust, sand and other airborne particles on the surface of PV panels. This effect becomes more severe in wet weather, where particles adhere cumulatively to the PV surface, forming a thick, largely opaque layer of contamination. This situation proves to be a serious problem, reducing the efficiency of PV plants and thus their profitability. [0003] Accordingly, a PV plant operator may run regular cleaning events on photovoltaic panels at a pre-determined frequency, such as monthly or bi-weekly. However, the actual demand for cleaning events may change, for example based on changes in weather conditions. This may adversely affect the optimal operation of pre-programmed cleaning events. For example, ...

Claims

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Application Information

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IPC IPC(8): H02S50/00H02S40/10
CPCH02S40/10H02S50/00Y02E10/50Y02E70/30G01N21/94H02S50/15H02S10/00
Inventor A·M·M·S·艾尔萨伯恩奇
Owner DUBAI ELECTRICITY AND WATER AUTHORITY
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