To address the issue of low prediction accuracy caused by the strong randomness and high volatility of photovoltaic power generation
a hybrid prediction model based on aggregated mode decomposition(AMD)
temporal convolutional network (TCN) and bidirectional gated recurrent unit (BiGRU) is proposed. In view of the randomness and high volatility of photovoltaic power generation
a complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN) is used to decompose the original photovoltaic sequence data for the first time
and a series of sub-sequences with different frequencies are obtained. Sample entropy (SE) is used to segment the molecular sequence
retaining the low-frequency and medium-frequency components of the signal. The high-frequency components obtained by CEEMDAN is decomposed secondarily by successive variational mode decomposition (SVMD) to reduce the sequence instability. Finally
the TCN-BiGRU model is used to predict each component
and final photovoltaic power prediction result is obtained by superimposing the prediction of each component. Experiments based on the analysis of arithmetic instances demonstrate that the forecasting accuracy and stability of the proposed hybrid prediction model outperform other approaches in photovoltaic power forecasting.
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