Abstract
The growing development of photovoltaic technology has explored the role of effective solar irradiance forecasting in grid security and stability However, due to its non-stationary nature and complexity, make its estimating extremely difficult. The scope of this work is to deal with this issue by introducing a new machine learning forecasting architecture for multi-hours ahead in multiple-site in Algeria. Specifically, we proposed a new decomposition-based ensemble-forecasting model. The developed forecasting strategy based on a new multi-scale decomposition algorithm named Iterative Filtering (IF) used as a pre-processing stage of the historical solar radiation data combined with Gaussian Process Regression (GPR) as an essence predictor to build an IF-GPR model. Hourly global solar radiation data of two years from different cities with diverse solar radiation profiles are used to validate the full potential of the newly proposed IF-GPR model. The performance of the proposed IF-GPR is rigorously assessed utilizing effective metrics and comparing its performance with the reference model. The forecasting results demonstrate the potential of the hybridization IF-GPR methodology for multi-hour forecasting up to four hours ahead. The forecasting errors in terms of normalized root-mean-square error for four hours ahead are as follows: 0.7, 2.45, 5.496, and 9.76 for the Algiers site; 0.373, 1.34, 2.81 and 11.22 for the Ghardaia region, while the attained results for the Adrar site are equal to: 0.525, 1.36, 2.73, and 4.73. Furthermore, the proposed IF method outperforms the recently introduced decomposition algorithm, complete ensemble empirical mode decomposition with adaptive noise, in boosting the forecasting ability of a stand-alone model.
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Abbreviations
- BiLSTM:
-
Bi-directional long short-term memory
- BPNN:
-
Back propagation neural network
- CDELA:
-
Decomposition-clustering based ensemble learning approach
- CDER:
-
Renewable energy development center
- CEEMDAN:
-
Complete ensemble empirical mode decomposition with adaptive noise
- CELA:
-
Cluster-based ensemble learning approach
- DELA:
-
Decomposition-based ensemble learning approach
- DTC-FADF:
-
Deep Time-series clustering feature attention deep forecasting model
- EELA:
-
Evolutionary-based ensemble learning approach
- EEMD:
-
Ensemble empirical mode decomposition
- ELT:
-
Ensemble learning techniques
- EMD:
-
Empirical mode decomposition
- GELA:
-
General ensemble learning approaches
- GHI:
-
Global solar radiation
- GPR:
-
Combined with Gaussian process regression
- IF:
-
Iterative filtering decomposition method
- Kc:
-
Clear-sky index
- LSTM:
-
Long short-term memory
- MABE:
-
Mean absolute bias error
- MEMD:
-
Multivariate empirical mode decomposition
- MMFF:
-
Multi-model forecasting framework
- MOS:
-
Model output statistics
- NMAE:
-
Normalized mean absolute error
- nRMSE:
-
Normalized root-mean-square error
- nRMSE:
-
Normalized root-mean-square error
- NWP:
-
Numerical weather prediction models
- PV:
-
Photovoltaic
- r :
-
Correlation coefficient
- RE:
-
Regression
- RELA:
-
Residual-based ensemble learning approach
- RF:
-
Random forest
- RMSE:
-
Root-mean-square error
- RNN:
-
Recurrent neural network's
- SVD:
-
Singular value decomposition
- URAER:
-
Renewable energy applied research unit
- URER-MS:
-
Research unit in renewable energies in saharan medium
- WPD-CNN-LSTM-MLP:
-
Wavelet packet decomposition convolutional neural network long short-term memory networks, and multi-layer perceptron network
- WT:
-
Wavelet transform
- \(\rho\) :
-
Lag value
- \(\sigma_{s}\) :
-
Sparse solution
- \(r_{s}\) :
-
Residual
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Acknowledgements
We would like to acknowledge the German federal bureau for supplying instrumentations used in this work, as part of the enreMENA project.
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This manuscript has associated data in a data repository. [Authors’ comment: The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.]
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Guermoui, M., Bouchouicha, K., Benkaciali, S. et al. New soft computing model for multi-hours forecasting of global solar radiation. Eur. Phys. J. Plus 137, 162 (2022). https://doi.org/10.1140/epjp/s13360-021-02263-5
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DOI: https://doi.org/10.1140/epjp/s13360-021-02263-5