LIFTING SYSTEM FOR WIND TURBINE TOWERS AND METHOD FOR ERECTING A WIND TURBINE TOWER

摘要

A method for erecting a structural tower includes providing a plurality of tower sections and engaging a translatable crane assembly with a lower one of the tower sections. A second one of the tower sections engages with a cable operatively engaged with the translatable crane assembly. The second one of the tower sections is hoisted towards an upper end of the lower one of the tower sections and the second one of the tower sections is secured to the lower one of the tower sections. The method finally includes translating the translatable crane assembly vertically along the secured tower sections towards the upper end thereof. A wind turbine assembly includes a structural tower and a translatable crane assembly.