Day-ahead wind speed forecasting using relevance vector machine

With the development of wind power technology,the security of the power system,power quality,and stable operation will meet new challenges. so,in this paper,we propose a recently developed machine learning technique,relevance vector machine (rvm),for day-ahead wind speed forecasting. we combine gaussian kernel function and polynomial kernel function to get mixed kernel for rvm. then,rvm is compared with back propagation neural network (bp) and support vector machine (svm) for wind speed forecasting in four seasons in precision and velocity; the forecast results demonstrate that the proposed method is reasonable and effective. © 2014 guoqiang sun et al.