In this study, the response of a 1-D horizontal axis wind turbine under the quantitative and real wind velocities of the city of Mosul at three different heights, under the axes of operation and design, has been analyzed. At generator height, hourly wind velocities over a period of five years ranging between 2018 and 2023 have been subjected to statistical analysis - mean, variance, wind velocity, distribution parameters (shape and scale), and especially exceeded wind velocities - utilizing two widely used distributions. Due to the high agreement of distributions with the real data have been extracted. At these velocities, and especially their exceeded velocities, corresponding to different heights, corresponding wind velocity pressures have been calculated. Thereinafter, the behavior of the tower across the two extreme design axes has been analyzed in the load-capacity concept. The results of the study have proved that, using the randomly generated or commonly used values in the design calculations of the minimum velocity, the probability of the wind velocity values that are, in fact, exceeded the chosen return period is high, and vice versa. From the statistical properties of the tower elements, the results have depicted that the turbine tower system design can be considered viable to two wind velocities; one from the nation's point of view, along with another from the individual customer's perspective. Depending on this, the design limits considering the concept of the relationship of the standard servicing times and the exceedance look-up tables have been recommended. With the comparison of this relationship, the agreement of the average design statistics with the national design recommendations becomes evident; where the remaining shape quality of the turbine tower structure can be considered high.

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Determination of the Optimum Design of One-Dimensional Wind Turbine Under the Weather Conditions of Mosul City

  • Yaser S. H. Mahmood,
  • Mohamed Taktak

摘要

In this study, the response of a 1-D horizontal axis wind turbine under the quantitative and real wind velocities of the city of Mosul at three different heights, under the axes of operation and design, has been analyzed. At generator height, hourly wind velocities over a period of five years ranging between 2018 and 2023 have been subjected to statistical analysis - mean, variance, wind velocity, distribution parameters (shape and scale), and especially exceeded wind velocities - utilizing two widely used distributions. Due to the high agreement of distributions with the real data have been extracted. At these velocities, and especially their exceeded velocities, corresponding to different heights, corresponding wind velocity pressures have been calculated. Thereinafter, the behavior of the tower across the two extreme design axes has been analyzed in the load-capacity concept. The results of the study have proved that, using the randomly generated or commonly used values in the design calculations of the minimum velocity, the probability of the wind velocity values that are, in fact, exceeded the chosen return period is high, and vice versa. From the statistical properties of the tower elements, the results have depicted that the turbine tower system design can be considered viable to two wind velocities; one from the nation's point of view, along with another from the individual customer's perspective. Depending on this, the design limits considering the concept of the relationship of the standard servicing times and the exceedance look-up tables have been recommended. With the comparison of this relationship, the agreement of the average design statistics with the national design recommendations becomes evident; where the remaining shape quality of the turbine tower structure can be considered high.