HAN Li,QIAO Yan,JING Huitian.Interval Estimation of Wind Power Based on Error Classification[J].Automation of Electric Power Systems,2021,45(1):97-104.
HAN Li,QIAO Yan,JING Huitian.Interval Estimation of Wind Power Based on Error Classification[J].Automation of Electric Power Systems,2021,45(1):97-104. DOI: 10.7500/AEPS20200227014.
Interval Estimation of Wind Power Based on Error Classification
In order to improve the interval estimation accuracy of wind power
an interval estimation method based on error classification is proposed combined with the characteristics of prediction error data. Firstly
the
K
-means clustering algorithm is introduced to classify the overall levels of wind power prediction errors by using the Euclidean distance as the clustering index. Secondly
an error interval estimation model is established
of which the input is the wind power and the historical prediction error
and the output is the prediction error interval. Long short-term memory (LSTM) network is utilized to deeply learn the correlation between the input and output of the model. Finally
the wind power data from Elia website is used for verification. The results show that
compared with other estimation models and traditional error probability distribution methods
the proposed method can capture the characteristics of prediction error data and obtain more accurate interval estimation results of wind power.
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