Title :
Wind power prediction based on sequential time clustering using SVM
Author :
Ding, Zhiyong ; Yang, Ping ; Yang, Xi ; Zhang, Zhen
Author_Institution :
Guangdong Key Lab. of Clean Energy Technol., South China Univ. of Technol., Guangzhou, China
Abstract :
Wind power prediction is important to synchronization of wind power. Conventional statistical methods were improved by considering the daily similarity of wind speed, but the sequential information was still ignored. This article puts forward a new method based on similarity and sequential time clustering, in which a year is divided into several continuous time series by clustering twice, with one catching the daily similarity and the other capturing the continuous wind statistics. Furthermore, different from the usual ANN model, SVM modeling is employed in the article to avoid trapping into local optimal. Experiment on a wind farm shows that it gains the error (RMSE/Installed Capacity) of 16.04%, consistently outperforming the method considering only daily similarity by relatively 7.2%.
Keywords :
neural nets; power engineering computing; statistical analysis; support vector machines; synchronisation; time series; wind power; ANN model; RMSE; SVM modeling; continuous time series; sequential time clustering; statistical methods; wind farm; wind power prediction; wind power synchronization; Computational modeling; Forecasting; Power systems; Support vector machines; Time series analysis; Wind power generation; Wind speed; SVM; clustering; prediction; sequential time; wind power;
Conference_Titel :
Electrical and Control Engineering (ICECE), 2011 International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4244-8162-0
DOI :
10.1109/ICECENG.2011.6057175