CHEN Weinan,HU Zhijian,YUE Jingpeng,et al.Short-term Load Prediction Based on Combined Model of Long Short-term Memory Network and Light Gradient Boosting Machine[J].Automation of Electric Power Systems,2021,45(4):91-97.
CHEN Weinan,HU Zhijian,YUE Jingpeng,et al.Short-term Load Prediction Based on Combined Model of Long Short-term Memory Network and Light Gradient Boosting Machine[J].Automation of Electric Power Systems,2021,45(4):91-97. DOI: 10.7500/AEPS20200312005.
Short-term Load Prediction Based on Combined Model of Long Short-term Memory Network and Light Gradient Boosting Machine
Short-term load prediction is the basis for safe dispatch and smooth operation of the power grid. To further improve the accuracy of load prediction
a combined prediction model based on long short-term memory (LSTM) network and light gradient boosting machine (LightGBM) is proposed. Firstly
according to the input structure of the LSTM network and LightGBM model
the pre-processed load data
temperature data
date data and holiday information are input into the two models
and the respective prediction results are obtained after training. Then
the optimal weighted combination method is used to determine the weight coefficients
and the prediction value of the combined model is obtained. Finally
taking actual load data as examples for analysis
the results show that the proposed method can effectively combine the advantages of the two models. It takes the effective information of discontinuous features into account while preserving the overall perception of time-series data. Compared with other models
the proposed method has higher prediction accuracy.
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