Multi-Scale Short-Term Load Forecasting Based on VMD and TCN

Accurate power load forecasting plays an important role in ensuring the stable operation of the power system. In view of the low precision of traditional short-term power load forecasting methods, the sub-sequence fusion problem is not considered after modal decomposition, this paper proposes a multi-scale short-term power load forecasting based on variational mode decomposition (VMD) and temporal convolutional network (TCN) methods. First, VMD is used to decompose the power load data into several sub-components to solve the problems of non-linearity and randomness in the power load data, then TCN is applied to train several components with different time scales, finally a fully connected network is used to analyze each component. Time-scale decomposition signals are fused to realize short-term power load forecasting and improve forecasting accuracy. The experimental results show that the root mean square error (RMSE) is reduced by 40% and the curve fitting is improved by 1.1% compared with the traditional prediction method of VMD and improved long-short-term memory network.