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Photovoltaic module accumulated dust detection method, device and equipment and storage medium

A technology for dust accumulation detection and photovoltaic modules, which is applied in the directions of measuring devices, photovoltaic power generation, and optical testing for flaws/defects. Requirements, improved adaptability, and high detection accuracy

Active Publication Date: 2021-02-05
SUNGROW POWER SUPPLY CO LTD
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Problems solved by technology

[0003] The problem solved by the present invention is that the fixed data density in the prior art cannot adapt to the changing environment, and cannot guarantee the accuracy of dust accumulation detection results

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  • Photovoltaic module accumulated dust detection method, device and equipment and storage medium
  • Photovoltaic module accumulated dust detection method, device and equipment and storage medium

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Embodiment Construction

[0058]In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0059] The invention provides a method for detecting dust accumulation of a photovoltaic module.

[0060] refer to figure 1 , In an embodiment of the photovoltaic module dust detection method of the present invention, the photovoltaic module dust detection method includes:

[0061] Step S10, based on the data density of the current time period to obtain the dust accumulation calculation parameters of the current time period;

[0062] A certain length of time (such as a day, a week, a month) can be divided into multiple time periods, for example, a day can be divided into 24 time periods, and the duration of each time period is 1 hour, or starting from a certain moment Start point, take the preset interval length as the time period, and ob...

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Abstract

The invention provides a photovoltaic module accumulated dust detection method, device, and equipment and a storage medium. The photovoltaic module accumulated dust detection method comprises the steps of obtaining accumulated dust calculation parameters of a current time period based on data density of the current time period; determining the dust accumulation rate of the current time period based on the dust accumulation calculation parameters of the current time period; verifying the dust accumulation rate of the current time period based on a preset verification algorithm to obtain a verification result; on the basis of the verification result, determining the data density of the next time period; and taking the next time period as a new current time period, and returning to execute the step of acquiring the accumulated dust calculation parameters of the current time period based on the data density of the current time period. According to the invention, the data density of the dust accumulation calculation parameter in the current time period can be switched based on the dust accumulation calculation result in the historical time period, and the data density access control canbe realized while the dust accumulation detection precision is ensured, so that the requirements of different application scenes on the access data density are met.

Description

technical field [0001] The invention relates to the technical field of photovoltaic power generation, in particular to a method, device, equipment and storage medium for detecting dust accumulation in photovoltaic modules. Background technique [0002] In the field of photovoltaics, the dust accumulation of components is generally determined by monitoring the power value of the components in the power station. For example, by calculating the actual power generated by the components and comparing them with the theoretical values ​​of the components under standard conditions, the dust accumulation of the components is determined by the difference ratio. Among them, the data density (referring to the amount of data contained per unit time) used to calculate the parameters for determining the dust accumulation of components has a greater impact on the dust accumulation detection results. In the prior art, a fixed data density is often used, but in actual application scenarios In...

Claims

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Application Information

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IPC IPC(8): G01N21/94
CPCG01N21/94G01N2021/945Y02E10/50
Inventor 王平玉
Owner SUNGROW POWER SUPPLY CO LTD
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