The present invention discloses a prestressed-bolted dry-assembled segmental precast hybrid tower with grouting-free, comprising a top steel tower tube, a reverse self-balancing steal-concrete transition section, and a prestressed-bolted dry-assembled segmental precast concrete tower with grouting-free dry fast splicing and a gear reinforced wind turbine foundation; the steel tower tube, the steel-concrete transition section, the concrete tower tube and the hollow wind turbine foundation are integrally connected from top to bottom through a prestressed steel strand system to improve the overall bending resistance of the tower; the upper end of the prestressed steel strands is anchored to the steel-concrete transition section, and the lower end is anchored to the bottom face of the wind turbine foundation corbel; the concrete tower tube is composed of a number of segmental tapered precast concrete tower segments, which are grouting free spliced vertically, and the vertical splicing utilizes positioning pins to accurately position the installation position. The prefabricated concrete tower tube segment is formed by a number of circular arc-shaped prefabricated concrete pipe segments with circumferential grouting free dry splicing. The segments are spliced into a whole by prestressed bolts and then installed staggered from top to bottom to enhance the shear resistance.

A contribution is made to the assembly of a wind turbine intended to comprise, in a final assembly condition, a tower (2) surmounted by a nacelle (4) cooperating with a rotor (5) receiving a plurality of blades (3a-3c). To this end, a temporary association is made between at least some blades from said plurality of blades and the tower, so that said blades extend substantially in the longitudinal direction of the tower.

The present invention discloses a transition piece (10) for connecting a first component (20) having at least three columns (21) to a tower-shaped second component (30), wherein the transition piece (10) can be arranged between the first component (20) and the second component (30) and comprises a connection device for connecting the second component 30. The transition piece (10) is characterized in that it has at least three curved elements (11), the respective legs (13) of which are connectable at least indirectly to the first component (20). Each curved element (11) can be brought into direct contact with the second component (30) by means of convex end sections (14) arranged between the respective legs (13). In this way, the convex end sections (14) of the curved elements (11) form a receiving region (15) of the transition piece (11) and the second component (30) can be inserted into this receiving region.

The present invention relates to a wind tower (10) for delivering wind flow to a turbine. The wind tower (10) including includes a support structure (12) mounted to a support surface (14) and a wind intake section 16 rotatably mounted to the support structure (12) and elevated with respect to the support surface (14). The intake section (16) includes a plurality of internal passageways (32) extending between a plurality of wind-facing inlets (22) and a plurality of outlets (34). The plurality of inlets (22) are orientated for concurrently receiving an oncoming wind-flow W. Each of the inlets (22) are in fluid communication with one of the outlets 34 via one of the passageways (32). The wind tower (10) further includes an output passageway (42) for collecting wind flow W from the plurality of outlets (34). The output passageway (42) is in fluid communication with the outlets (34) and extends downwardly from the intake section (16) toward the support surface (14) for delivering wind flow W to a turbine located at or proximate to the support surface (14).

The present invention concerns an anchoring section for anchoring a pylon of a wind power installation in a foundation, including a carrier portion for fixing a pylon segment for carrying the pylon and a foundation portion for concreting in a concrete mass of the foundation, and the foundation portion has at least one web portion with through openings for reinforcing bars to pass therethrough.

A floating offshore wind power generation facility includes a floating body, a mooring cable, a tower, and a windmill installed at the top of the tower, the windmill including a nacelle and a plurality of blades. The rotation axis of the windmill has a predetermined upward angle to avoid contact between the blades and the tower, and the windmill is of a downwind type in which the blades are attached to the leeward side of the nacelle and installed with the back surfaces of the blades facing windward, and the mooring point of the mooring cable to the floating body is set at a position below the surface of the sea and higher than the center of gravity of the floating body.

A tower includes a plurality of stacked sections extending in a longitudinal direction from a base section to a top section. At least one of the stacked sections includes a first block and a second block joined together. The first block and the second block have interlocking portions such that a first portion of the first block is located above a first portion of the second block in the longitudinal direction.

A wind power system includes a wind turbine resting on a floating support and an anchoring system for anchoring the wind power system connected to the wind power system by attachment points. The wind power system has the attachment points raised above the waterline of the floating support to a height with respect to the waterline determined so as to counterbalance an overturning moment of the wind turbine subjected to a given wind speed.

A retrofit reinforcing structure addition and method for an existing gravity spread foundation for a wind turbine or the like haying a central pedestal and a spread section is provided. The retrofit structure addition includes a collar formed around the pedestal of the spread foundation. The collar is formed by a shape sustaining member, such as a CMP, placed around the pedestal to define an annular ring between the CMP and the pedestal that is filled with cementitious material. Radial bolts extend horizontally through the collar and into the side of the pedestal. Soil and/or rock anchor bolts extend vertically through the collar, the spread portion of the foundation and into the underlying soil and/or rock substrate. The radial and anchor bolts are post-tensioned to ensure that the cementitious material of the collar remains in compression and the bolts are always in static tension, strengthening the original gravity spread foundation and extending the fatigue life thereof.

The present invention relates a wind turbine comprising a wind turbine tower with a nacelle provided on the top to which a rotor hub with one or more wind turbine blades is rotatably mounted so that they form a rotor plane. A floating foundation having a upper section is mounted to the bottom of the wind turbine tower, wherein the foundation has a buoyant body configured to be installed at an offshore position having a water depth of about 40 m or more. The wind turbine blade comprises an inner blade section coupled to an outer blade section by a pitch junction in which a pitch mechanism is coupled to a pitch control system configured to regulate the pitch of the outer blade section relative to the inner blade section at wind speeds above a first wind speed. This allows the pitching to be used to counteract the tilting of the wind turbine caused by the different thrusts acting on the structure. This allows for a more linear control of the bending moment induced in the structure, since the blade sections provides a more constant thrust acting on the rotor hub which in turn allows the large negative damping loads and stresses introduced in the wind turbine to be eliminated.