A new approach to very short term wind speed prediction using k-nearest neighbor classification


YEŞİLBUDAK M., SAĞIROĞLU Ş. , Colak I.

ENERGY CONVERSION AND MANAGEMENT, cilt.69, ss.77-86, 2013 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 69
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.enconman.2013.01.033
  • Dergi Adı: ENERGY CONVERSION AND MANAGEMENT
  • Sayfa Sayıları: ss.77-86

Özet

Wind energy is an inexhaustible energy source and wind power production has been growing rapidly in recent years. However, wind power has a non-schedulable nature due to wind speed variations. Hence, wind speed prediction is an indispensable requirement for power system operators. This paper predicts wind speed parameter in an n-tupled inputs using k-nearest neighbor (k-NN) classification and analyzes the effects of input parameters, nearest neighbors and distance metrics on wind speed prediction. The k-NN classification model was developed using the object oriented programming techniques and includes Manhattan and Minkowski distance metrics except from Euclidean distance metric on the contrary of literature. The k-NN classification model which uses wind direction, air temperature, atmospheric pressure and relative humidity parameters in a 4-tupled space achieved the best wind speed prediction for k = 5 in the Manhattan distance metric. Differently, the k-NN classification model which uses wind direction, air temperature and atmospheric pressure parameters in a 3-tupled inputs gave the worst wind speed prediction for k = 1 in the Minkowski distance metric. (C) 2013 Elsevier Ltd. All rights reserved.