To improve the accuracy of short-term photovoltaic power forecasting under various weather conditions
this paper introduces a model that combines Successive Variational Mode Decomposition (SVMD) and an Improved Dung Beetle Optimization algorithm (IDBO) to optimize a Kernel Extreme Learning Machine (KELM). Firstly
the dataset is categorized into similar daily samples for different weather types using a Gaussian Mixture Model. Then
SVMD is applied to decompose the dataset into stable subsequences
thereby enhancing data quality. Next
IDBO is employed to optimize KELM
resulting in an IDBO-KELM prediction model specifically tailored for forecasting these subsequences. Finally
the predicted values from the subsequences are recombined to produce the final forecast. Experimental results demonstrate that this method performs well under three different weather conditions and exhibits superior accuracy when compared to other models.
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references
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