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Determination of Weibull parameters for wind energy analysis of İzmir, Turkey
Author(s) -
Ulgen K.,
Hepbasli A.
Publication year - 2002
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.798
Subject(s) - weibull distribution , wind speed , range (aeronautics) , dimensionless quantity , shape parameter , environmental science , meteorology , rayleigh distribution , wind power , statistics , mathematics , probability density function , engineering , physics , mechanics , electrical engineering , aerospace engineering
In this study, the two Weibull parameters of the wind speed distribution function, the shape parameter k (dimensionless) and the scale parameter c (ms −1 ), were computed from the wind speed data for İzmir. Wind data, consisting of hourly wind speed records over a 5‐year period, 1995–1999, were measured in the Solar/Wind‐Meteorological Station of the Solar Energy Institute at Ege University. Based on the experimental data, it was found that the numerical values of both Weibull parameters ( k and c ) for İzmir vary over a wide range. The yearly values of k range from 1.378 to 1.634 with a mean value of 1.552, while those of c are in the range of 2.956–3.444 with a mean value of 3.222. The average seasonal Weibull distributions for İzmir are also given. The wind speed distributions are represented by Weibull distribution and also by Rayleigh distribution, with a special case of the Weibull distribution for k =2. As a result, the Weibull distribution is found to be suitable to represent the actual probability of wind speed data for İzmir (at annual average wind speeds up to 3 ms −1 ). Copyright © 2002 John Wiley & Sons, Ltd.