LM WP PATENT HOLDING A/S Patent applications |
Patent application number | Title | Published |
20150300314 | METHOD AND SYSTEM FOR TRANSPORTING AND STORING AT LEAST TWO WIND TURBINE BLADES - A transportation and storage system for at least two wind turbine blades include a first wind turbine blade and a second wind turbine blade is described. The wind turbine blades each have a root end and a tip end. The system includes a packaging system adapted to place the first wind turbine blade so that the tip end of the first wind turbine blade points in a first direction, with the tip end of the second wind turbine blade pointing in a second direction, which is substantially opposite to the first direction. The tip end of the second wind turbine blade extends beyond the root end of the first wind turbine blade, and the tip end of the first wind turbine blade extends beyond the root end of the second wind turbine blade, when the first and the second wind turbine blades are arranged in the packaging system. | 10-22-2015 |
20150292522 | SYSTEM AND METHOD FOR TRAILING EDGE NOISE REDUCTION OF A WIND TURBINE BLADE - A system and method for reducing the operational noise of a blunt trailing edge of a wind turbine blade is described. The system involves increasing the trailing edge solid angle at the blade trailing edge by providing a wedge element or projection adjacent the trailing edge of the blade, the wedge element acting to provide improved mixing of the suction side and pressure side flows at the blunt trailing edge, thereby reducing the strength of vortex shedding at the trailing edge and the associated operational noise. | 10-15-2015 |
20150285216 | Method and System for Transporting and Storing At Least Two Wind Turbine Blades - A transportation and storage system for at least two wind turbine blades and comprising a first wind turbine blade and a second wind turbine blade is described. The wind turbine blades each having a root end and a tip end, said system comprising a packaging system that is adapted to placing the first wind turbine blade so that the tip end of the first wind turbine blade points in a first direction, and placing the second wind turbine blade so that the tip end of the second wind turbine blade points in a second direction, which is substantially opposite to the first direction. The tip end of the second wind turbine blade extends beyond the root end of the first wind turbine blade, and the tip end of the first wind turbine blade extends beyond the root end of the second wind turbine blade, when the first and the second wind turbine blades are arranged in the packaging system. | 10-08-2015 |
20150132140 | EROSION SHIELD FOR A WIND TURBINE BLADE - An erosion shield for a wind turbine blade is described, the erosion shield having a plurality of layers of erosion resistant material. The layers of erosion resistant material have an adhesive bond strength between adjacent layers less than the cohesive tensile strength of the layers, such that the outer layers of erosion resistant material are arranged to peel away or delaminate from the erosion shield under the action of the wind once the particular layer is ruptured or eroded. This dynamic removal of the outer layers of the erosion shield provides for increased shield lifetime, and a reduction in the maintenance operations required for a wind turbine blade having such an erosion shield. | 05-14-2015 |
20140286784 | WIND TURBINE BLADE - A wind turbine blade is described having noise reduction features. The blade has a plurality of projecting serrations provided at the blade trailing edge to reduce the scattering noise produced during operation of the blade, wherein the serrations have a plurality of through-going apertures defined in the serration body. The apertures act to provide a pressure equalisation effect at the serrations between the suction and pressure sides. This pressure equalisation provides for improved noise reduction performance, as well as a reduction in mechanical stresses and strains which may be experienced by the serrations, increasing serration lifetime. | 09-25-2014 |
20140271190 | Wind Turbine Blade having a Conductive Root Bushing - A wind turbine blade is described having a lightning protection system wherein a lightning down conductor is conductively coupled to at least one blade root bushing provided at the root end of the blade. The use of the blade root bushing as part of the conductive path of the lightning protection system allows for a structurally sound and reliable connection of an internal down conductor to an external lightning protection system and/or to a suitable ground connection at the blade root end. | 09-18-2014 |
20140241896 | A WIND TURBINE BLADE - The wind turbine blade ( | 08-28-2014 |
20140241880 | METHOD FOR RETROFITTING VORTEX GENERATORS ON A WIND TURBINE BLADE - A method of retrofitting vortex generators on a wind turbine blade is disclosed, the wind turbine blade being mounted on a wind turbine hub and extending in a longitudinal direction and having a tip end and a root end, the wind turbine blade further comprising a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow, generating a lift. The method comprises identifying a separation line on the suction side of the wind turbine blade, and mounting one or more vortex panels including a first vortex panel comprising at least one vortex generator on the suction side of the wind turbine blade between the separation line and the leading edge of the wind turbine blade. | 08-28-2014 |
20140219810 | VORTEX GENERATOR ARRANGEMENT FOR AN AIRFOIL - A particular arrangement of vortex generators for an airfoil is described. The vortex generators are provided in pairs, preferably on a wind turbine blade, wherein by arranging the vortex generators according to specified characteristics, a surprising improvement in blade performance is provided over the prior art systems. | 08-07-2014 |
20140154092 | WIND TURBINE BLADE WITH TRANSITION REGION - A wind turbine blade ( | 06-05-2014 |
20140140856 | WIND TURBINE BLADE COMPRISING VORTEX GENERATORS - Disclosed is a wind turbine blade and a method for retrofitting a wind turbine blade, the wind turbine blade extending in a longitudinal direction along a pitch axis and having a tip end and a root end as well as a blade length, the wind turbine blade further comprising a profiled contour including a pressure side and a suction side, as well as a leading edge and a trailing edge with a chord having a chord length extending there between, the profiled contour, when being impacted by an incident airflow generating a lift, wherein the suction side of the wind turbine blade is provided with a plurality of vortex generators positioned along a mounting line having a proximal end point nearest the root end and a distal end point nearest the tip end, wherein the mounting line is a concave line seen from the trailing edge of the wind turbine blade. | 05-22-2014 |
20140140844 | METHOD OF CONTROLLING A WIND TURBINE AND RELATED SYSTEM - The present invention relates to a method for controlling a wind turbine comprising a pitch of one or more blades and collecting first data indicative of a dynamic condition of the first wind turbine blade and a rotor, the first data comprising rotor data and first deflection data, the rotor data indicative of the azimuth position and rotational velocity of the rotor in a rotor plane perpendicular to the rotor axis, and the first deflection data indicative of the position, speed and acceleration of one or more parts of the first wind turbine blade. The method comprises calculating an expected tower clearance distance at a later time of tower passage for the first blade based on the first data including acceleration of one or more parts of the first blade, and performing measures to prevent tower collision, if the expected tower clearance distance fulfills a collision risk criterion. | 05-22-2014 |
20140119936 | WIND TURBINE BLADE COMPRISING METAL FILAMENTS AND CARBON FIBRES AND A METHOD OF MANUFACTURING THEREOF - Wind turbine blade has a longitudinal direction and includes a shell structure made of a fibre-reinforced polymer material including a polymer matrix and reinforcement material comprising a plurality of carbon fibre layers embedded in the polymer matrix. At least a portion of the shell structure is formed of a laminate | 05-01-2014 |
20140030094 | WIND TURBINE BLADE HAVING A ROOT REGION WITH ELONGATED FASTENING MEMBERS PROVIDED WITH METAL FIBRES - A wind turbine blade for a wind turbine is a shell structure of a fibre-reinforced composite and comprises a root region and an airfoil region. The root region has ring-shaped cross section and comprises a plurality of elongated bushings | 01-30-2014 |
20130336789 | WIND TURBINE BLADE COMPRISING ROOT END BULKHEAD - A wind turbine blade ( | 12-19-2013 |
20130280070 | WIND TURBINE BLADE WITH CROSS-SECTIONAL SENSORS - A wind turbine blade extending along a longitudinal axis from a root end to a tip end and in a transverse plane perpendicular to the longitudinal axis, the transverse plane having a main axis extending through an elastic center point, wherein the wind turbine blade comprises a sensor system including a first sensor set for measuring a first bending moment in a first sensor position at a first distance from the root end, the first sensor set comprising a first primary sensor for measuring a primary component and a first secondary sensor for measuring a secondary component, wherein a first primary sensor axis in the transverse plane is oriented in a direction defined by the first primary sensor and the elastic center point, and a first secondary sensor axis in the transverse plane is oriented in a direction defined by the first secondary sensor and the elastic center point, and wherein an angle between the first primary sensor axis and the first secondary sensor axis is in the range from 50° to 130° | 10-24-2013 |