Short-term power forecasting method of photovoltaic power station based on a Kmeans-GRA-Elman model
A photovoltaic power station and power forecasting technology, applied in forecasting, neural learning methods, biological neural network models, etc., can solve problems such as short-term power forecasting of photovoltaic power stations that have not yet been seen, and achieve the effect of improving precision and accuracy
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[0027] The present invention will be further described below in conjunction with the drawings and embodiments.
[0028] This embodiment provides a short-term power prediction method for photovoltaic power plants based on the hybrid improved Kmeans-GRA-Elman model. The flow chart is as follows figure 1 Shown. It includes the following steps:
[0029] Step S1: Collect the historical daily generation power of the photovoltaic power station and the meteorological parameters of the corresponding time period on the weather station every day. The meteorological parameters include meteorological factors such as light, ambient temperature, humidity, wind speed, etc., and combine to obtain a daily meteorological-power parameter sample combination;
[0030] Step S2: Preprocess the daily weather-power parameter sample combination, remove abnormal data and perform normalization processing;
[0031] Step S3: Use the six statistical indicators in the normalized statistical analysis combined with the...
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