Photovoltaic system output power prediction method and device

A technology for output power and photovoltaic systems, applied in the field of photovoltaic system output power prediction, can solve problems such as insufficient stability of prediction performance, inability of the model to adapt to changes in input parameters, difficulties in optimizing local mechanism parameters, etc., to achieve good modeling accuracy and improve prediction The effect of precision and accurate data support

Pending Publication Date: 2020-05-19
CHINA ELECTRIC POWER RES INST +3
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Problems solved by technology

Due to the statistical characteristics of solar irradiance and ambient temperature that have significant differences under different weather conditions or different seasons, it is common to use a single model to realize the output power prediction of photovoltaic systems. The prediction accuracy is not high, and the model cannot adapt to changes in input parameters. The performance is not stable enough, and it is easy to fall into the local mechanism and the parameter optimization process is difficult

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  • Photovoltaic system output power prediction method and device
  • Photovoltaic system output power prediction method and device
  • Photovoltaic system output power prediction method and device

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Embodiment Construction

[0038] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0040] The invention provides a photovoltaic system output power prediction method, such as figure 1 As shown, the method includes:

[0041] Obtain the value of the influencing factor...

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Abstract

The invention relates to a photovoltaic system output power prediction method and device. The method comprises the steps of obtaining an influence factor value of photovoltaic system output power; predicting the output power of the photovoltaic system based on the influence factor value of the output power of the photovoltaic system. According to the invention, the output power of the photovoltaicsystem is predicted based on the influence factor value of the output power of the photovoltaic system, the prediction precision of the photovoltaic output power is improved, and more accurate data support is provided for photovoltaic power generation scale operation and optimal scheduling.

Description

technical field [0001] The invention relates to the technical field of power prediction, in particular to a photovoltaic system output power prediction method and device. Background technique [0002] Photovoltaic power generation, as the most important solar energy utilization method, has become an emerging growth point of renewable energy power generation. Solar energy is rich in resources and has a large theoretical reserve. The development and utilization of new and renewable energy has increasingly become the focus. Solar photovoltaic power generation is considered to be a solar energy utilization method with the highest conversion efficiency, long service life, and can provide a large amount of electricity. With the large-scale photovoltaic power plants connected to the grid in recent years, the randomness and volatility of the output power of photovoltaic power generation have affected the security, stability and economic operation of the grid. Accurate prediction o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06G06N3/08
CPCG06N3/084G06Q10/04G06Q50/06Y02E40/70Y04S10/50
Inventor 周海王铁强朱想时珉陈卫东
Owner CHINA ELECTRIC POWER RES INST
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