WO/2015/110138 PITCH BEARING CONSTRUCTION COMPRISING SPHERICAL PLAIN BEARINGS||WO||30.07.2015|
||PCT/EP2014/051053||AKTIEBOLAGET SKF||KLEINMEULEMAN, Peter|
The present invention resides in a bearing construction (200) for enabling angular adjustment of a wind turbine
blade (220) relative to a wind turbine
hub (210), comprising a dynamic frame and a static frame, whereby the static frame has static frame legs (241) which penetrate through openings between dynamic frame legs (231, 232) of the dynamic frame. The dynamic frame may form part of the turbine
blade or the blade may be attachable to the dynamic frame. Similarly, the static frame may form part of the hub or is attachable to the hub. The bearing construction (200) further comprises first and second axially spaced shaft sections (270, 280), each of which forms part of one of the dynamic and static frames. First and second radial spherical plain bearings (250, 260) are mounted on the first and second shaft sections respectively, for rotationally supporting the dynamic frame relative to the static frame. According to the invention, one of the first and second shaft sections is a tapered shaft section (280). Further, the corresponding spherical plain bearing (260) has a tapered bore and has an axial width that is greater at one side of a reference line than at an opposite side. The reference line is perpendicular to a rotation axis (205) of the bearing and passes through a spherical centrepoint of the bearing (260).
WO/2015/109661 WING-UNFOLDING AND BLADE-SWINGING TYPE VERTICAL-SHAFT WIND TURBINE GENERATOR SET||WO||30.07.2015|
||PCT/CN2014/074781||SHENZHEN BL-E SCENERY THERMAL ENERGY TECHNOLOGY COMPANY||CHOU, Shuaijun|
Disclosed is a wing-unfolding and blade-swinging type vertical-shaft wind turbine
generator set, comprising a generator (11) and a wind
wheel which is installed on a vertical shaft of the generator (11). The wind
wheel comprises a rotary bracket (7) and a plurality of groups of blade units, wherein the rotary bracket (7) is fixedly assembled and connected to the vertical shaft of the generator (11); each group of blade units comprise a support rod (2), a hinging mechanism (2) and a blade (1), wherein one end of the support rod (2) is provided with a hinged seat (9), the hinged seat (9) is hinged to the rotary bracket (7) via a first pin shaft (8), the axial direction of the first pin shaft (8) is perpendicular to the length direction of the support rod (2), the blade (1) is hinged to the other end of the support rod (2) via the hinging mechanism (2), and when the wind
wheel is static, the support rods (2) of all the blade units are all located in the same horizontal plane; and a cushion is provided between the rotary bracket (7) and the support rod (2). In this structure, the windward area of the wind
wheel can be adjusted according to the wind
power, so that the present invention can also generate electricity normally when the wind
is strong. Moreover, the present invention has a simple structure, saves material and has low composite costs.
WO/2015/110276 GRID DETECTION MODULE FOR A WIND TURBINE, AND METHOD FOR DETERMINING THE GRID FREQUENCY||WO||30.07.2015|
||PCT/EP2015/050048||SENVION SE||LETAS, Heinz-Hermann|
The invention relates to a method for determining the grid frequency, in which a voltage curve (U1) of a first phase (281) of the grid (16) and a voltage curve (U2) of a second phase (282) of the grid (16) are measured. A linear combination (UXi) is formed from the voltage curve (U1) of the first phase (281) and the voltage curve (U2) of the second phase (282). The time interval between a first voltage value of the linear combination (UXi) and a second voltage value of the linear combination (UXi) is determined. The invention also relates to a grid detection module which is suitable for carrying out the method. By virtue of the invention, it is possible to determine the grid frequency with shorter cycles and/or with increased accuracy.
WO/2015/113011 DUAL PURPOSE SLAT-SPOILER FOR WIND TURBINE BLADE||WO||30.07.2015|
||PCT/US2015/012979||SIEMENS AKTIENGESELLSCHAFT||DIXON, Kristian R.|
An aerodynamic slat (30) mounted over a forward suction side (40) of a wind turbine
blade (22) and a mechanism (51A-F) that closes or reduces a gap (31) between slat and blade. The slat may pivot to reduce the gap, or the gap may be reduced by a device such as an extendable gate (58), or butterfly plate (59), or damper plate (60). Control logic (64) activates an actuator (70) of the mechanism to close or reduce the gap when wind
conditions meet or exceed a predetermined criterion such as a rated wind
condition. This reduces wind
loading on the blade by separating airflow (53) over the suction side of the blade downstream of the slat. The blades can then maintain a higher angle of attack during rated wind
conditions than in the prior art, allowing them to stall in gusts sooner to limit peak aerodynamic loads.
WO/2015/110580 GUYED TOWER STRUCTURE FOR A WIND TURBINE WITH HIGH TORSIONAL RIGIDITY||WO||30.07.2015|
||PCT/EP2015/051363||X-TOWER CONSTRUCTIONS GMBH||WAGNER, Philipp|
The invention relates to a tower structure (10) for a wind turbine
(12), comprising a tower shaft (14), which has a shaft cross-section (16) and a longitudinal axis (A), as well as a plurality of guying elements (18, 20) which are inclined relative to the longitudinal axis (A) of the tower shaft (14) and by which the tower shaft (14) is guyed at least in some sections, wherein the guying elements (18, 20) are fastened to a load introduction point (22) of the tower shaft (14) that is located radially at a distance from the longitudinal axis (A) of the tower shaft (14) and are anchored radially outside of the tower shaft (14) in a construction base (24), wherein each guying element (18, 20) is assigned a radial direction (26) which, as seen in axial plan view, is defined by a centroid (28) of the shaft cross-section (16) and the load introduction point (22) of the respective guying element (18, 20), and wherein at least some of the guying elements (18, 20), starting from the respectively assigned load introduction point (22), enclose an angle (α) with the assigned radial direction (26), as seen in axial plan view, wherein: a) α = 90° or b) 45°≤α<90°, in particular 60°≤α<90°.
WO/2015/111639 DIVIDED HOLDING DEVICE AND JOINT FOR POWER-GENERATING APPARATUS||WO||30.07.2015|
||PCT/JP2015/051592||JTEKT CORPORATION||FUJIWARA, Hideki|
A plurality of pockets for accommodating engaging elements between an inner ring and outer ring having a one-way clutch are formed along a circumferential direction in a divided holding device. The divided holding device has a pair of annular parts facing in an axial direction, the annular parts being provided between the inner ring and the outer ring, and a plurality of column parts separate from the pair of annular parts, the column parts being linked at the axial ends to the annular parts. Wear resistance treatment is performed on the axially opposing side surfaces of the annular parts.
WO/2015/111709 COATING COMPOSITION FOR FORMING COATING FILM HAVING IMPACT RESISTANCE||WO||30.07.2015|
||PCT/JP2015/051876||KANSAI PAINT CO., LTD.||INADA, Yuichi|
The problem to be solved by the present invention is: to provide a coating composition and coating film formation method capable of forming, on an object to be coated, a coating film having exceptional coating workability, the resulting coating film having exceptional impact resistance such as rain erosion resistance and chipping resistance, water resistance, and finish properties, and exceptional adhesiveness to an object to be coated such as a blade of a wind
power generator or the like; and to provide an object coated by this coating composition. The present invention provides a coating composition containing (A) a polyol, (B) a polyisocyanate compound, and (C) a curing catalyst, wherein the coating composition is characterized in that component (A) contains a polyol (A1) having a structural unit derived from a C 8 or higher fatty acid, and the curing catalyst (C) contains an imidazole compound having at least one imidazole ring.
20150204045 FLOATING OFFSHORE STRUCTURES||US||23.07.2015|
||14596149||ALSTOM RENEWABLE TECHNOLOGIES||Jaume BETRAN PALOMAS|
Floating offshore structures comprising a buoyancy structure arranged such that in use it remains below the sea level, and a tower, wherein the buoyancy structure is attached to the tower by a substantially tubular connecting structure, wherein one or more through channels are provided in the buoyancy structure, the through channels being traversing the buoyancy structure and extending from a bottom portion of the buoyancy structure to an inner portion of the connecting structure, the through channels being dimensioned such that sea water can flow into and out of the connecting structure with variations of the sea level. The application further relates to floating offshore structures comprising a wind turbine and to methods of reducing buoyancy variations in such floating offshore structures.
20150204200 FIBRE COMPOSITE COMPONENT FOR THE ROTOR BLADE OF A WIND TURBINE||US||23.07.2015|
||14674947||SENVION SE||Enno Eyb|
A composite fiber component for a rotor blade of a wind power plant including a first sandwich core and a second sandwich core arranged next to each other, each having an inside facing a rotor blade interior and an outside facing a rotor blade exterior. A first fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the outside of the second sandwich core. A second fiber-containing laminate layer is arranged on the outside of the first sandwich core and on the outside of the second sandwich core. And, a third fiber-containing laminate layer is arranged on the inside of the first sandwich core and on the inside of the second sandwich core. Also disclosed is a rotor blade for a wind power plant having a composite fiber component as disclosed.
20150204314 WIND TURBINE ROTATING ELECTRIC MACHINE FRAME, AND ROTATING ELECTRIC MACHINE||US||23.07.2015|
||14416516||Wilic S.AR.L.||Norman Anselmi|
A frame of a rotating electric machine of a wind turbine extends about an axis of rotation, and has a tubular structure having a cylindrical face and configured to support a plurality of active segments along the cylindrical face; an annular flange configured to connect the rotating electric machine to a main frame of a wind turbine; and a ring having an annular seat for a bearing; and wherein the tubular structure, the annular flange, and the ring are formed in one piece.