Keywords:-

Keywords: Weibull, Exponentiated Weibull, Exponentiated Exponential Weibull, Additive Weibull, Wind Speed, Wind Energy.

Article Content:-

Abstract

Accurate wind speed modeling is critical in estimating wind energy potential for harnessing wind power effectively. One of the bases for assessment of wind energy potential for a specified region is the probability distribution of wind speed, therefore wind speed data is needed to produce statistical modeling, especially in determining the best probability distribution. For this purpose, several modified weibull distributions will be used and tested to determine the best model to describe wind speed in Pekanbaru. The main goal of this study is to find the best fitting distribution to the daily wind speed measured over Pekanbaru region for the years 1999-2020 by using the four modified weibull distributions, namely Weibull (W), Exponentiated Weibull (EW), Additive Weibull (AW) and Exponentiated Exponential Weibull (EEW). The maximum likelihood method will be used to get the estimated parameter value from the distribution used in this study.  Furthermore, the graphical inspection (density-density plot and cumulative plot)  and numerical criteria (Akaike’s information criterion (AIC), Bayesian Information Criteria (BIC), - log likelihood (- l) ) were used to determine the best fit model. In most cases, the results produced by the graphical inspection were similar, and differed from the numerical criteria .  The best fit result was chosen as the distribution with the lowest values of AIC, BIC and - l.  In general, the Exponentiated Exponential Weibull (EEW) distribution has been selected as the best model.

References:-

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Sugian, E., Yendra, R., Marizal, M., & ., R. (2023). The Comparison Some Extended Weibull Distribution (Weibull (W), Exponentiated Weibull (EW), Exponentiated Exponential Weibull (EEW) and Additive Weibull (AW)) for the wind Speed Probability Modelling. International Journal Of Mathematics And Computer Research, 11(12), 3890-3893. https://doi.org/10.47191/ijmcr/v11i12.01