Short-Term Load Forecasting Based on Mutual Information and Bi-directional Long Short-term Memory Network Considering Fluctuation in Importance Values of Features
Basic Research|更新时间:2025-06-16
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Short-Term Load Forecasting Based on Mutual Information and Bi-directional Long Short-term Memory Network Considering Fluctuation in Importance Values of Features
Automation of Electric Power SystemsVol. 46, Issue 8, Pages: 95-103(2022)
SUN Hui,YANG Fan,GAO Zhengnan,et al.Short-Term Load Forecasting Based on Mutual Information and Bi-directional Long Short-term Memory Network Considering Fluctuation in Importance Values of Features[J].Automation of Electric Power Systems,2022,46(8):95-103.
SUN Hui,YANG Fan,GAO Zhengnan,et al.Short-Term Load Forecasting Based on Mutual Information and Bi-directional Long Short-term Memory Network Considering Fluctuation in Importance Values of Features[J].Automation of Electric Power Systems,2022,46(8):95-103. DOI: 10.7500/AEPS20210625008.
Short-Term Load Forecasting Based on Mutual Information and Bi-directional Long Short-term Memory Network Considering Fluctuation in Importance Values of Features
deep learning models with recurrent units are widely used. However
the weight sharing structure used during training is time-invariant
ignoring different influence of input features (weather
date
historical load value
etc.) on load changes at different moments
ie.
the weight sharing structure cannot track the fluctuations in the importance values of input features. To solve this problem
this paper proposes a forecasting method based on mutual information (MI) and bi-directional long short-term memory (BILSTM) network considering fluctuations in the importance values of features. The MI method is used to extract the importance value of input features at different moments
and constitute the fluctuant matrix of the importance values of input features
which is used as coefficients to correct the original input feature. Then
the corrected features are substituted into the BILSTM network to complete the training and forecasting
which makes up for the defect that the weight sharing structure cannot track the fluctuations in the importance values of input features and further improves the forecasting accuracy. Finally
taking the load data of the actual grid in a certain region as an example
the effectiveness of the proposed short-term load forecasting method is verified.
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