Dust cleaning early warning method and system for photovoltaic power station
A photovoltaic power station, dust technology, applied in the direction of alarms, electrical digital data processing, instruments, etc., can solve the problems of inaccurate cycle, long manual cleaning cycle, waste, etc., and achieve the effect of accurate accuracy
Pending Publication Date: 2021-07-02
TIANCHANG TIANNENG NEW ENERGY CO LTD
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Problems solved by technology
At present, regular dust removal and cleaning methods are generally used. The cycle of this method is not accurate enough. If the manual cleaning cycle is too long, the power generation capacity of the components will be reduced, resulting in a waste of power generation. When the manual cleaning cycle is short, the cost of manual cleaning will be increased. cause economic loss and waste
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[0072] The present application will be further introduced below in conjunction with the accompanying drawings and embodiments.
[0073] In the following introduction, the terms "first" and "second" are only used for the purpose of description, and should not be understood as indicating or implying relative importance. The following description provides multiple embodiments of the present invention, and different embodiments can be replaced or combined in combination, so this application can also be considered to include all possible combinations of the same and / or different embodiments described. Thus, if one embodiment contains features A, B, C, and another embodiment contains features B, D, then the application should also be considered to include all other possible combinations containing one or more of A, B, C, D Although this embodiment may not be clearly written in the following content.
[0074] The following description provides examples, and does not limit the scope,...
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The invention provides a dust cleaning early warning method and system for a photovoltaic power station. The method comprises the following steps: acquiring historical monitoring data of a first preset time period from a power station monitoring system; calculating the photovoltaic attenuation rate according to the historical monitoring data; collecting real-time monitoring data from a data collector, wherein the data interval is a preset period; screening the real-time monitoring data; performing standardization processing on the real-time monitoring data; calculating the current-day dust retention rate of the photovoltaic module according to the standardized real-time monitoring data; calculating the dust accumulation loss electric charge of the photovoltaic module according to the current-day dust accumulation rate of the photovoltaic module; calculating manual cleaning cost; and determining an early warning level according to the photovoltaic module dust accumulation loss electric charge and the manual cleaning cost. The method is based on historical data and real-time data. A mathematical model is established, and three levels of early warning dates are set according to different requirements.
Description
technical field [0001] The invention belongs to the field of photovoltaic power generation, and in particular relates to a dust cleaning and early warning method and system for a photovoltaic power station. Background technique [0002] The power generation capacity of photovoltaic power plants is an important indicator for evaluating the power generation capacity of photovoltaic power plants. There are many factors that affect power generation capacity. Among them, the dust on the surface of photovoltaic modules will reflect, scatter and absorb solar radiation to a certain extent, and with the increase of dust accumulation, The photoelectric conversion efficiency of photovoltaic modules will decrease rapidly, greatly affecting the power generation capacity. At present, the treatment of accumulated dust is generally divided into natural cleaning and manual cleaning. [0003] Natural cleaning refers to natural rainfall washing photovoltaic panels to achieve the purpose of cl...
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IPC IPC(8): G06F16/2458G06F16/2457G06F30/20G06Q50/06G08B21/18
CPCG06F16/2465G06F16/2457G06F16/2477G06F30/20G06Q50/06G08B21/182
Inventor 郝胜宇
Owner TIANCHANG TIANNENG NEW ENERGY CO LTD