Sensitivity analysis of different wind speed distribution models with actual and truncated wind data: A case study for Kerman, Iran

2016 ◽  
Vol 120 ◽  
pp. 51-61 ◽  
Author(s):  
Omid Alavi ◽  
Ahmad Sedaghat ◽  
Ali Mostafaeipour
2018 ◽  
Vol 155 ◽  
pp. 78-90 ◽  
Author(s):  
Nawel Aries ◽  
Sidi Mohammed Boudia ◽  
Houdayfa Ounis

2021 ◽  
Vol 9 ◽  
Author(s):  
Huanyu Shi ◽  
Zhibao Dong ◽  
Nan Xiao ◽  
Qinni Huang

With economic development and population growth, energy demand has shown an upward trend. Renewable energy is inexhaustible and causes little pollution, which has broad prospects for development. In recent years, wind energy has been developed as an essential renewable energy source. The use of wind power is very environmentally friendly and plays a critical role in economic growth. Assessing the characteristics and potential of wind energy is the first step in the effective development of wind energy. The wind speed distribution at a specific location determines the available wind energy. This paper reviews the wind speed distribution models used for wind energy assessment, and they are applicable to different wind regimes. All potential wind speed distribution models should be considered for modeling wind speed data at a particular site. Previous studies have selected several parameter estimation methods and evaluation criteria to estimate model parameters and evaluate the goodness-of-fit. This paper discusses their advantages and disadvantages. The characteristics of wind speed distribution are constantly varying geographically and temporally. Wind energy assessment should consider local geographical elements, such as local climate, topography, and thermal properties difference between the land and the sea, and focus on long-term variations in wind characteristics.


2014 ◽  
Vol 492 ◽  
pp. 550-555
Author(s):  
Mohamed Salem Elmnefi ◽  
Ahmed Mohamed Bofares

The statistical wind data obtained from measurements for the 12 month period of January to December 2008 at Benina, Benghazi, Libya. The site coordinates are: latitude 32,05N and longitude 20,13E. The elevation of the site is 136 m above mean sea level (AMSL). The wind speed has been measured at height of 10 m above the ground level using 3 cup anemometers. Moreover wind speed has been estimated at height of 40 m. The statistical wind data set was analyzed using weibull distributions in order to investigate the weibull shape and scale parameters at 10 m and 40 m height. Finally, the yearly power density has been estimated at both heights. The results showed that strong and sufficient winds for power generation are available at most of months in Benina region.


2014 ◽  
Vol 5 (5) ◽  
pp. 121-136 ◽  
Author(s):  
Paula-Andrea Amaya-Martínez, ◽  
Andrés-Julián Saavedra-Montes ◽  
Eliana-Isabel Arango-Zuluaga

2015 ◽  
Vol 159 (2) ◽  
pp. 329-348 ◽  
Author(s):  
Sven-Erik Gryning ◽  
Rogier Floors ◽  
Alfredo Peña ◽  
Ekaterina Batchvarova ◽  
Burghard Brümmer

2011 ◽  
Author(s):  
D. K. Kirova ◽  
Michail D. Todorov ◽  
Christo I. Christov

The main objective of this study is to estimate the optimum Weibull scale and shape parameters for wind speed distribution at three stations of the state of Tamil Nadu, India using Nelder-Mead, Broyden–Fletcher–Goldfarb–Shanno, and Simulated annealing optimization algorithms. An attempt has been made for the first time to apply these optimization algorithms to determine the optimum parameters. The study was conducted for long term wind speed data (38 years), short term wind speed data (5 years) and also with single year’s wind speed data to assess the performance of the algorithm for different quantum of data. The efficiency of these algorithms are analyzed using various statistical indicators like Root mean square error (RMSE), Correlation coefficient (R), Mean absolute error (MAE) and coefficient of determination (R2). The results suggest that the performance of three algorithms is similar irrespective of the quantum of the dataset. The estimated Weibull parameters are almost similar for short term and long term dataset. There is a marginal variation in the obtained parameters when only single year’s wind data is considered for the analysis. The Weibull probability distribution curve fits very well on the wind speed histogram when only single year’s wind speed data is considered and fits marginally well when short term and long term wind speed data is considered


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