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A method and device for predicting the radiation received by a photovoltaic power station

A photovoltaic power station, solar radiation technology, applied in forecasting, data processing applications, instruments, etc., can solve problems such as no data calculation and processing, no universal applicability, and poor algorithm application effect, so as to achieve the goal of improving accuracy Effect

Active Publication Date: 2019-05-31
ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY +3
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Problems solved by technology

[0004] Although some literatures on photovoltaic power prediction at home and abroad have proposed some cloud occlusion radiation attenuation methods, they only roughly classify the relationship between clouds and radiation, without detailed calculation and processing of data such as cloud height and cloud thickness, and the algorithm The actual application effect is not very good, not universal

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  • A method and device for predicting the radiation received by a photovoltaic power station

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Embodiment Construction

[0048] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0049] The flow chart of a specific implementation of the method for predicting the radiation received by a photovoltaic power station provided by the present invention is as follows: figure 1 As shown, the method includes:

[0050] Step S101: Obtain the echo monomer water content in the radar scanning area;

[0051] Step S102: Calculate cloud height and cloud thickness data of the corresponding cloud cluste...

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Abstract

The present invention discloses a method and device for prediction of radiation received by a photovoltaic power station. The method for prediction of radiation received by the photovoltaic power station comprises: obtaining the water content of an echo monomer; calculating cloud height and cloud thickness data with respect to a cloud cluster monomer in a scanning area according to the spatial distribution of the water content of the echo monomer; calculating the motion vector of the cloud cluster monomer according to the monomer echo intensity data scanned by a radar; determining whether the cloud cluster monomer may shield the photovoltaic power station in a preset time according to the motion vector of the cloud cluster monomer; and predicting the radiation received by the photovoltaic power station under the shield of the cloud cluster monomer according to actual measurement monitoring data, weather type theory radiation data, the water content of the echo monomer and the cloud height and cloud thickness data of the photovoltaic power station when determining the cloud cluster monomer may shield the photovoltaic power station. According to the invention, the radiation attenuation relation caused by shield of different clouds may be accurately calculated, and the prediction accuracy of the photovoltaic power may be improved.

Description

Technical field [0001] The present invention relates to the technical field of photovoltaic power prediction, in particular to a method and device for predicting radiation received by a photovoltaic power station. Background technique [0002] Due to the randomness and volatility of the output power of photovoltaic power generation, the connection of large-scale photovoltaic power plants to the grid in recent years has affected the safety and stability of the grid and economic operation. Accurate prediction of the output power of photovoltaic power plants can provide important decision support for power dispatch, and help the power dispatch department to adjust the dispatch plan in advance according to the changes in photovoltaic power generation, ensure power quality, reduce the standby capacity of the system, and reduce the power system Operating costs make full use of photovoltaic resources, thereby obtaining greater economic and social benefits. [0003] However, the output po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCY04S10/50
Inventor 赵波张雪松葛晓慧朱想周海
Owner ELECTRIC POWER RES INST OF STATE GRID ZHEJIANG ELECTRIC POWER COMAPNY
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