Photovoltaic power prediction optimization method and device for photovoltaic power station
A technology for power prediction and photovoltaic power station, which is applied in the field of new energy power generation control, and can solve the problems that photovoltaic power generation output cannot meet the power system, is not conducive to improving the accuracy of power prediction, and cannot carry out targeted optimization measures.
Active Publication Date: 2020-01-17
国家电网有限公司华北分部 +2
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[0003] However, the current prediction level of photovoltaic power generation output cannot meet the needs of the actual operation of the power system; in order to improve the accuracy of photovoltaic power prediction, the factors affecting photovoltaic power prediction can be analyzed by evaluating the photovoltaic power prediction error, and the photovoltaic power prediction can be adjusted according to the influencing factors , so as to improve the accuracy of photovoltaic power prediction
[0004] Existing photovoltaic power prediction error evaluation technologies are usually based on the prediction results and actual results for the macroscopic overall results, and cannot quantify and analyze the errors caused by various key links in photovoltaic power prediction, and cannot carry out corresponding optimization measures in a targeted manner, which is not conducive to Improve Power Prediction Accuracy
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[0067] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiment of the application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the application. Obviously, the described embodiment is only It is an embodiment of a part of the application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.
[0068] Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Accordingly, the present invention can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermor...
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The invention provides a photovoltaic power prediction optimization method and device for a photovoltaic power station. The method comprises: acquiring a photovoltaic-electric conversion model, prediction data, actual measurement data and operation data of the photovoltaic power station; obtaining a photovoltaic power prediction total error according to the prediction data and the actual measurement data; obtaining equivalent prediction data according to the optical-electric conversion model, the actual measurement data and the operation data; obtaining errors caused by each key link of photovoltaic power prediction according to the photovoltaic power prediction total error, the prediction data and the equivalent prediction data; and optimizing each key link of photovoltaic power prediction according to errors caused by each key link, so that the power prediction precision can be effectively improved.
Description
technical field [0001] The invention relates to the technical field of new energy power generation control, in particular to a photovoltaic power prediction and optimization method and device for photovoltaic power plants. Background technique [0002] Solar energy is an intermittent, random, and volatile natural resource. When its penetration rate exceeds a certain percentage, the safe operation of the power system may be seriously affected. Photovoltaic power forecasting of photovoltaic power plants is the core technology to ensure the safe and reliable operation of high-proportion new energy power systems. Therefore, the accuracy of photovoltaic power prediction is directly related to issues such as power grid peak regulation, unit combination, and unit economic operation. [0003] However, the current prediction level of photovoltaic power generation output cannot meet the needs of the actual operation of the power system; in order to improve the accuracy of photovoltai...
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IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y02E40/70
Inventor 江长明柳玉杨健牛四清李丹谢旭邓立喻乐郭万舒
Owner 国家电网有限公司华北分部