Abstract: A wind turbine multi-panel blade with the integrated root, with an aerodynamic profile made up of at least one lower shell (17) on the pressure side and one upper shell (19) on the suction side and two prefabricated inner crossbeams (11, 13), with these lower and upper shells (17, 19) assembled with these inner crossbeams (11, 13), wherein these lower and upper shells (17, 19) and these prefabricated inner crossbeams (11, 13) including, respectively, some extensions (31, 33, 37, 39) configured so that they can be assembled making up the blade's root. The blade may also include a front shell (15) assembled with the crossbeam (11) nearest to the leading edge next to the lower and upper shells (17, 19).

Abstract: A multi-panel wind turbine blade with improved joints on the trailing edge, with an aerodynamic profile with a leading edge (3), a trailing edge (5) and pressure and suction sides (7, 9) between the leading edge (3) and the trailing edge (5), where the transversal section of the edges of the prefabricated panels (31, 41) laid out on the pressure and suction side have a variable geometry on the trailing edge area (5) along the blade, with at least a first section (21) of the blade including its tip, in which the configuration of the edges of these panels (31, 41) includes some co-operating flattened surfaces (33, 43; 34, 44; 35, 45) to facilitate its adhesive bonding along the trailing edge (5). This variable geometry includes the possibility of using a third panel (51) on a blade section near to its root.