Photovoltaic module cleaning method and system considering irradiance
A photovoltaic module and irradiance technology, which is applied in data processing applications, instruments, complex mathematical operations, etc., can solve the problems of insufficient standardization of evaluation methods and the lack of a consensus on the comprehensive evaluation system and method of photovoltaic power station irradiance, so as to reduce economic loss effect
Pending Publication Date: 2022-02-25
华能山东发电有限公司众泰电厂 +2
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Problems solved by technology
However, the current evaluation methods for the comprehensive evaluation of the irradiance of photovoltaic power plants are not standardized enough, and most of them are studies on theoretical systems
A consensus has not been reached on a systematic approach to the comprehensive evaluation of the irradiance of photovoltaic power plants and cleaning strategies
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[0068] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0069] In the description of the present invention, it should be understood that the terms "comprising" and "comprising" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or more other features, Presence or addition of wholes, steps, operations, elements, components and / or collections thereof.
[0070] It should also be understood that the terminology used in the descriptio...
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The invention discloses a photovoltaic module cleaning method and system considering irradiance. The method comprises the following steps: establishing an irradiance evaluation index system according to an air pollution index, a module surface pollution index, a ground pollution index and other factors; performing data collection according to the established irradiance evaluation index system, determining the membership of each index in the irradiance evaluation index system according to a membership function, and calculating the weight value of the irradiance evaluation index system according to an entropy weight method; performing fuzzy comprehensive evaluation on the region by combining the weight value and the membership degree to obtain a fuzzy comprehensive evaluation result of the evaluation layer index i; calculating a comprehensive evaluation value and a weighted average evaluation value according to the fuzzy comprehensive evaluation result of the evaluation layer index i, and obtaining a score for evaluating the comprehensive evaluation of the irradiance of the photovoltaic power station; and according to the score analysis influence factors for evaluating the comprehensive evaluation of the irradiance of the photovoltaic power station, the cleaning priority is determined, and a cleaning strategy is given. According to the invention, the economic loss of the photovoltaic power station caused by the pollution of the photovoltaic module can be retrieved.
Description
technical field [0001] The invention belongs to the technical field of photovoltaic system applications, and in particular relates to a photovoltaic module cleaning method and system considering irradiance. Background technique [0002] In the study of photovoltaic power generation systems, in addition to key technologies such as panel materials and conversion efficiency, power prediction, inverter efficiency, maximum power point tracking (MPPT), off-grid control, island protection, and power quality management, for long-term operation For photovoltaic power plants, the impact of dust on the surface of photovoltaic modules, underlying surface conditions, air quality, and other geographical and meteorological factors on irradiance is also a problem that cannot be ignored. Dust on the surface of photovoltaic modules, underlying surface conditions, air quality, and other geography and meteorology have reflection, scattering and absorption effects on solar radiation, that is, re...
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IPC IPC(8): G06Q10/06G06Q50/10G06F17/18G06F17/16
CPCG06Q10/06393G06Q50/10G06F17/18G06F17/16
Inventor 宫玉柱刘川张如周贺茂群郝敬国李杰周泉吴月杨博谢小军王淑娟吴琼郗航
Owner 华能山东发电有限公司众泰电厂