Wind Turbine Tower Structure Analysis According to Wind Load in Terms of Cost

Abstract

development of wind energy is drastically increasing as a result of the energy need in the world. The main concerns about the design is to make a safe and economically feasible wind turbines. The design of the wind turbine tower must be strong and stiff enough to endure the varying wind and wave loads. In this study, a site specific 3MW monopile type wind turbine tower was designed and analysed according to European Standards considering wind loads. The standard analysis procedure of the tower is respectively buckling, fatigue and dynamic analyses were done analytically and optimum door opening geometry was found and FEM analyses examined. Basic cost optimization of the tower was also done. The objectives of this thesis help to producers (1) how to design wind turbine towers in structural aspect, (2) identify which kind of standards must be followed, (3) follow the standards and (4) show idealization and FEM analyses of door opening of wind tower. The analytic results of the designed tower were found in interval that is wanted to reach. The importance of the tower door opening was observed. Considering to other door opening geometries, the geometry that was chosen for this thesis was one of the good result.