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Different horizons of the application of Weibull distribution for Wind resource assessment: a case study for the Brazilian Northeast region

Carneiro, Tatiane (UFC)
Search for Tatiane Carneiro in Research Programmes Information System
Carvalho, Paulo (UFC)
Search for Paulo Carvalho in Research Programmes Information System
Chapter Renewable Energy
Volume Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management
Conference EnviroInfo 2014 - ICT for Energy Effieciency
Oldenburg, 2014
Year 2014
Abstract of the Article
This paper aims to apply the Weibull distribution in the annual and semiannual horizons to contribute to
the assessment of wind energy potential in three cities located in Northeastern Brazil (BRNER) region.
The potential for wind power in a period can be evaluated by a probability density function such as the
Weibull distribution. Different methods for calculating these parameters, including the method of
equivalent energy, developed to optimize the application of this frequency distribution to the data
collected in northeastern Brazil, were tested. This research seeks to optimize the fit to the data of wind
speed and contribute to the reduction of errors in the analysis of wind potential of cities located in the
Brazilian Northeast. According to the analysis, it was found that the reduction of the horizon of
application provides better efficiency in the adjustment of calculated and observed frequencies. It was
also observed that the Weibull distribution applies satisfactorily to the data collected in coastal cities
and its efficiency is reduced when applied to distant cities on the coast. Among all analyzed methods for
calculating the parameters (k and c) of Weibull distribution, the method of equivalent energy was the
one which performed better.
Pages 69 - 76
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