IJSGCE 2023 Vol.12(2): 19-29 DOI: 10.12720/sgce.12.2.19-29

Renewable Energy Forecasting with Hybrid Nonlinear Model (ANFIS): Case Study of Wind Speed in Thailand

Anupong Banjongkan, Nittaya Kerdprasop and Kittisak Kerdprasop
School of Computer Engineering, Suranaree University of Technology, Nakhon Ratchasima, 30000, Thailand
*Correspondence: banjongkan@gmail.com(A.B.)

International Journal of Smart Grid and Clean Energy, vol. 12, no. 2, 2023: pp. 19-29
Submitted January 20, 2023; revised February 20, 2023; accepted 31 March, 2023; published April 1, 2023.

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Renewable energy has been a hot topic recently, especially wind power which has grown considerably in the past decade. The forecast of wind speed in advance is important information for wind power plant management. In this paper, a high-efficiency time series model for forecasting wind speed day-ahead is proposed, developed from the nonlinear hybrid model called Adaptive Neuro-Fuzzy Inference System (ANFIS). It brings together the advantages of fuzzy and neural network learning. In addition, a comparative study was done with Autoregressive Integrated Moving Average (ARIMA) and other nonlinear time series models including Artificial Neural Network (ANN) and Long Short-Term Memory (LSTM) models. The realistic data from the meteorological data of Chaiyaphum province, Thailand were used in this research. The dataset was split into learning and testing data in the ratio of 75% and 25%, respectively. The result shows that the forecasting performance of the ANFIS model was comparable to the ARIMA model. Both models achieve high accuracy than other neural network models. The proposed model achieves high efficiency at 22.89 MAPE and 0.41 of R2. Interestingly, the ANFIS model has a learning time faster than ANN and LSTM models by at least 100 times.

ANFIS, fuzzy, neural network, renewable energy, time series

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