In case study: Investigation of tower shadow disturbance and wind shear variations effects on energy production, wind speed and power characteristics

This study presents effects of tower shadow disturbance and wind shear variations on energy production. These are very important parameters to determine wind characteristics. The measurement station was established to obtain wind data in Tokat Gaziosmanpasa University Campus. Wind characteristics were determined for reference location in campus. Analysis were performed with created four different scenarios. Tower shadow, wind shear and disturbed wind speeds and energy loses were calculated. Also new two equation were created to determine the turbine power of AIR-X 400W wind turbine that was selected as reference. The innovative aspect of this study is that effect of the x distance, from the tower midline to blade origin, on disturbed wind speed was investigated first time. Analysis showed that x is the most effective parameter on tower shadow disturbance and tower shadow disturbance is more dominant than wind shear. Moreover, this study showed that considering the x distance in calculating the tower shadow disturbance had more successful results in determining the disturbed wind speeds and energy losses.