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A Hybrid Wavelet Transform Based Short-Term Wind Speed Forecasting Approach
Author
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-12, 12 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-20
Country of Publication
Egypt
No. of Pages
12
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
It is important to improve the accuracy of wind speed forecasting for wind parks management and wind power utilization.
In this paper, a novel hybrid approach known as WTT-TNN is proposed for wind speed forecasting.
In the first step of the approach, a wavelet transform technique (WTT) is used to decompose wind speed into an approximate scale and several detailed scales.
In the second step, a two-hidden-layer neural network (TNN) is used to predict both approximated scale and detailed scales, respectively.
In order to find the optimal network architecture, the partial autocorrelation function is adopted to determine the number of neurons in the input layer, and an experimental simulation is made to determine the number of neurons within each hidden layer in the modeling process of TNN.
Afterwards, the final prediction value can be obtained by the sum of these prediction results.
In this study, a WTT is employed to extract these different patterns of the wind speed and make it easier for forecasting.
To evaluate the performance of the proposed approach, it is applied to forecast Hexi Corridor of China’s wind speed.
Simulation results in four different cases show that the proposed method increases wind speed forecasting accuracy.
American Psychological Association (APA)
Wang, Jujie. 2014. A Hybrid Wavelet Transform Based Short-Term Wind Speed Forecasting Approach. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1051578
Modern Language Association (MLA)
Wang, Jujie. A Hybrid Wavelet Transform Based Short-Term Wind Speed Forecasting Approach. The Scientific World Journal No. 2014 (2014), pp.1-12.
https://search.emarefa.net/detail/BIM-1051578
American Medical Association (AMA)
Wang, Jujie. A Hybrid Wavelet Transform Based Short-Term Wind Speed Forecasting Approach. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-12.
https://search.emarefa.net/detail/BIM-1051578
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1051578