Weibull and Generalized Extreme Value Distributions for Wind Speed Data Analysis of Some Locations in India
| Autor: | Arnab Sarkar, Debabrata Datta, Amit Vijaywargiya, Rakesh Roy, Sneh Deep, V. S. Phanikanth |
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| Rok vydání: | 2019 |
| Předmět: |
Wind power
Meteorology business.industry 0211 other engineering and technologies 02 engineering and technology Wind engineering Wind speed Gumbel distribution 021105 building & construction Generalized extreme value distribution Range (statistics) business Extreme value theory Geology 021101 geological & geomatics engineering Civil and Structural Engineering Weibull distribution |
| Zdroj: | KSCE Journal of Civil Engineering. 23:3476-3492 |
| ISSN: | 1976-3808 1226-7988 |
| Popis: | Wind velocity data modeling plays a crucial role for the estimation of wind load and wind energy. Apart from these, the same modeling must also be used in the load cycle analysis of fatigue failure in slender structures to address periodic vortex shedding. Most authors fitted the entire available range of wind velocities of various locations using Weibull models. However, they did not check the validity of the model in describing the range of extreme wind velocity. In this work, the validity of Weibull models for describing parent as well as extreme hourly mean wind velocity data for four places on the east coast of India has been checked. While it predicts lower wind speeds accurately, the Weibull model has been found to become inappropriate for describing wind velocity in the range of extremes, i.e., above a certain threshold value. Therefore, this article focuses on the techniques of determining a limiting wind velocity beyond which the Weibull distribution is rendered unsuitable. In the range where the Weibull distribution fails, various extreme value distributions, such as Gumbel, Frechet and reverse Weibull distributions have been compared, thereby determining the best estimator for each location. |
| Databáze: | OpenAIRE |
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