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Photovoltaic module cleaning simulation method

A technology of photovoltaic modules and simulation methods, applied in the direction of photovoltaic modules, cleaning methods and tools, cleaning methods using tools, etc., can solve problems such as scratching the surface of photovoltaic modules and affecting light transmittance

Inactive Publication Date: 2018-08-14
内蒙古东华新能源运维有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current cleaning method mainly uses a roller brush to clean, but it will scratch the surface of the photovoltaic module and affect the light transmittance
How to evaluate the damage of rolling brush cleaning to photovoltaic modules has always been a research topic in the industry, and there is a lack of a related testing equipment and method for rolling brush cleaning in the prior art

Method used

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  • Photovoltaic module cleaning simulation method

Examples

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Embodiment Construction

[0022] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted.

[0023] refer to figure 1 , this embodiment discloses a photovoltaic module cleaning simulation method for measuring the power generation efficiency of a photovoltaic module, comprising the following steps:

[0024] Measuring the power generation efficiency η1 of the photovoltaic module 5;

[0025] Make the detected photovoltaic module 5 contact the bristles of the roller brush 3, rotate the roller brush 3 to clean the photov...

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Abstract

The present invention proposes a photovoltaic module cleaning simulation method for obtaining the power generation efficiency of the photovoltaic module, which includes the following steps: measuring the power generation efficiency η1 of the photovoltaic module; bringing the photovoltaic module to be detected into contact with the bristles of the roller brush, and rotating the roller brush for cleaning For photovoltaic modules, the rotation speed of the roller brush is the rotation speed of the roller brush during actual operation, and the rotation time of the roller brush is T=t×n×y, where t is the single cleaning time of the photovoltaic module during actual cleaning, and n is the annual cleaning time. The number of photovoltaic modules, y is the number of years of use of the photovoltaic module; after the brush rotation time t, measure the power generation efficiency eta2 of the photovoltaic module at this time. The photovoltaic module cleaning simulation method of the present invention can simulate the power generation efficiency of the photovoltaic module after a certain period of use by rotating the roller brush for a specified time, and determine the impact of the roller brush on the cleaning of the photovoltaic module.

Description

technical field [0001] The invention relates to a simulation test method, in particular to a photovoltaic module cleaning simulation method. Background technique [0002] For photovoltaic power plants in Northwest China, dust shadowing is an important factor affecting power generation. Northwest China is arid, water-short, and windy and sandy, and modules are seriously covered by dust. Dust shading reduces the amount of light radiation received by modules, affecting system efficiency and reducing power generation. Partial shading will cause hot spot effect, resulting in loss of power generation, affecting the life of components, and causing safety hazards at the same time. Dust shading will weaken the intensity of solar radiation received by the module, and at the same time cause unevenness of solar radiation, which will affect the output power of the module. [0003] According to the previous analysis, dust shading will seriously affect the output power of the components,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02S50/10H02S40/10B08B1/04
CPCH02S40/00H02S50/00B08B1/32Y02E10/40F24S2201/00F24S40/20Y02E10/50
Inventor 艾方陈小钢郝翔胡建军杨瑞琛
Owner 内蒙古东华新能源运维有限责任公司
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