Comparison of seven numerical methods for determining Weibull parameters for wind energy generation in the northeast region of Brazil
Comparison of seven numerical methods for determining Weibull parameters for wind energy generation in the northeast region of Brazil
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DOI：
10.1016/j.apenergy.2011.08.003
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发表时间：
2012
期刊：
影响因子：
11.2
通讯作者：
P. A. Rocha;R. Sousa;Carla Freitas de Andrade;Maria Eugênia Vieira da Silva
中科院分区：
文献类型：
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作者：
P. A. Rocha;R. Sousa;Carla Freitas de Andrade;Maria Eugênia Vieira da Silva
本文涉及的分析和比较7（七）数值方法的有效性评估确定威布尔分布的参数，使用收集在Camocim和Paracuru城市，塞阿拉州，在巴西东北部地区，在2004年8月至2006年4月期间，由塞阿拉州的基础设施部获得的风速数据。一种方法是不为人所知的，即等效能量法，其性能进行了比较。采用方差分析、RMSE（均方根误差）和卡方检验来比较所提出的方法，本研究旨在确定哪些方法在确定可用数据的威布尔分布参数方面是有效的，试图建立可接受的标准，以更好地利用塞阿拉州的风力发电，该公司在巴西使用可再生能源发电方面具有全国性的突出地位。
This paper deals with the analysis and comparison of 7 (seven) numerical methods for the assessment of effectiveness in determining the parameters for the Weibull distribution, using wind speed data collected in Camocim and Paracuru cities, State of Ceará, in the northeast region of Brazil, in the period from August 2004 to April 2006, obtained by the Department of Infrastructure of the State of Ceará. One method is not well known, namely the equivalent energy method, and its performance is compared to the others. By using the methods of analysis of variance, RMSE (root mean square error), and chi-square tests to compare the proposed methods, this study aims to determine which ones are effective in determining the parameters of the Weibull distribution for the available data, in an attempt to establish acceptable criteria to a better utilization of wind power in the State of Ceará, which is a national prominence in the use of renewable sources for electricity generation in Brazil.