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Photovoltaic module cleaning method

A photovoltaic module and component technology, which is applied in photovoltaic power generation, photovoltaic modules, electrical components and other directions, can solve the problems of lack of cleaning basis and blindness in photovoltaic module cleaning.

Active Publication Date: 2016-08-03
XUJI GRP +1
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  • Abstract
  • Description
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Problems solved by technology

[0005] The purpose of the present invention is to provide a photovoltaic module cleaning method to solve the technical problems in the prior art that there is no cleaning basis and blindness in the cleaning of photovoltaic modules

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0031] The invention provides a cleaning method for a photovoltaic module. Taking the cleaning decision index of the photovoltaic module as a control target, a two-stage fuzzy controller is designed to calculate and output the final control target. First, the data of parameters such as power generation, wind speed, precipitation, ambient temperature, and string operating current are collected for preprocessing, and the accurate values ​​of the three parameters of power generation gain level, expected sand transport rate, and expected precipitation are obtained, and these three Parameters are used as the input parameters of the first-level fuzzy controller; then, the above three precise quantities are fuzzified, and the linguistic value of the linguistic variable is transformed into a fuzzy subset on the appropriate universe; secondly, the front-level fuzzy con...

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Abstract

The invention relates to a photovoltaic module cleaning method. The method comprises steps: 1) related data for decisive factors influencing whether the photovoltaic module is cleaned or not are acquired, the data are processed, and accurate values of the decisive factors which are a generation gain level, a sediment transport rate, a precipitation amount and a module masking rate influencing whether the photovoltaic module is cleaned or not are obtained; 2) the accurate values of the generation gain level, the sediment transport rate, and the precipitation amount obtained in the first step are fed to a first-stage fuzzy controller for processing, and an initial cleaning index, that is, the initial cleaning probability of the photovoltaic module, is obtained; and 3) the accurate value of the module masking rate obtained in the first step and the initial cleaning index obtained in the second step are fed to a second-stage fuzzy controller for processing, and a cleaning decisive index is obtained. Thus, a decisive data support is provided for cleaning of the photovoltaic module, the defect that the original photovoltaic module cleaning decision subjective consciousness is strong is broken, and thus, cleaning and maintenance of the photovoltaic power station module are more scientific.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a method for cleaning photovoltaic modules. Background technique [0002] Photovoltaic power generation, as a kind of clean energy, has received extensive attention worldwide. There are more and more large-scale ground photovoltaic power stations and distributed rooftop photovoltaic power stations in my country, but the power generation of photovoltaic power stations can rarely meet expectations. Among them Severe dust accumulation of components is one of the most important reasons affecting its power generation. [0003] Dust, dirt and other unclean substances on the surface of photovoltaic modules affect the light transmittance, reduce the amount of light radiation received by the surface of the module, seriously affect the conversion efficiency of solar photovoltaic systems, and further affect the economic and environmental benefits of solar photovoltaic systems. i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S40/10
CPCH02S40/10Y02E10/50
Inventor 董永超孔波万要军张新生王以笑王景丹贺衬心焦东东
Owner XUJI GRP
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