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Long-term planning of integrated local energy systems using deep learning algorithms
Taheri, S ; Sharif University of Technology | 2021
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- Type of Document: Article
- DOI: 10.1016/j.ijepes.2021.106855
- Publisher: Elsevier Ltd , 2021
- Abstract:
- Optimal investment and operations of integrated local energy systems (ILESs) require medium to long-term prediction of energy consumption. To forecast load profiles, deep recurrent neural networks (DRNNs) are becoming increasingly useful due to their capability of learning uncertainty and high variability of load profiles. However, to explore and choose a DRNN model, out of conceivably numerous configurations, depends entirely on the performing task. In this regard, we tune and compare seven DRNN variants on the task of medium and long-term predictions for heating and electricity consumption. The ultimate DRNN model outperforms two state-of-the-art machine learning techniques, namely gradient boosting (GB) regression and support vector machine (SVM) in terms of accuracy. Also, developing optimization frameworks that can employ deep learning algorithms to alleviate the significant computational burden associated with EH planning is neglected in previous literature. Thus, we aim at improving the efficiency of the optimization process through a strong coupling of deep learning algorithms and conventional optimization methods. In this regard, a step-by-step algorithm is formulated to facilitate the use of Gaussian Process (GP) regression within the optimization problem and obtain optimal results without explicitly performing the optimization problem. The overall computational time is decreased by a factor of 0.47 when the proposed optimization framework is implemented for a practical EH system. © 2021
- Keywords:
- Adaptive boosting ; Deep neural networks ; Energy utilization ; Forecasting ; Investments ; Optimization ; Recurrent neural networks ; Support vector machines ; Support vector regression ; Computational burden ; Conventional optimization ; Electricity-consumption ; Long-term prediction ; Machine learning techniques ; Optimization framework ; Optimization problems ; Step-by-Step algorithm ; Learning systems
- Source: International Journal of Electrical Power and Energy Systems ; Volume 129 , 2021 ; 01420615 (ISSN)
- URL: https://www.sciencedirect.com/science/article/pii/S0142061521000958?via%3Dihub