Patent application number | Description | Published |
20090257881 | Wind Turbine Blade with an Integrated Lightning Conductor and Method for Manufacturing the Same - A method is provided for manufacturing a wind turbine rotor blade in which the blade is formed as a laminated structure by laying a composite material of fibre reinforcement material and/or core material in a mould defining the shape of the blade; evacuating the mould after laying the composite material; introducing a liquid polymer into the evacuated mould and wetting the composite material; curing the liquid polymer after the composite material has been wetted; and removing the mould after curing the liquid. At least one lightning conductor is integrated into the composite material before wetting it with the liquid polymer. Moreover, a wind turbine rotor blade made from a single laminated structure is provided with at least one lightning conductor is integrated into the laminated structure. | 10-15-2009 |
20090257882 | WIND TURBINE BLADE WITH LIGHTNING RECEPTOR AND METHOD FOR PROTECTING THE SURFACE OF A WIND TURBINE BLADE - A wind turbine blade has at least one lightning receptor, wherein at least part of a surface of the wind turbine blade close to the lightning receptor is covered by a protective layer having electrical and thermal insulating material. Moreover, a method for protecting the surface of a wind turbine blade close to a lightning protector against temperature increase resulting from lightning impact is disclosed. At least part of the surface of the wind turbine blade is covered with a protective layer having electrical and thermal insulating material. | 10-15-2009 |
20100068059 | Lightning Protection System for a Wind Turbine - A lightning protection system is provided for protecting a device for exterior use, in particular a wind turbine, from damages based on a lightning stroke. The lightning protection system includes a choke element. The choke element is adapted for being mounted around a shaft of the device in such a manner that a current flow through the shaft causes a magnetic flux in the choke element. | 03-18-2010 |
20110305573 | Lightning protection system for a wind turbine - A lightning protection system for a wind turbine with a tower, a nacelle, a blade hub and a blade attached to the blade hub is provided. The lightning protection system includes an inner conductor inside the blade, an outer conductor arranged outside the blade and in electrical communication with the inner conductor, a collecting conductor arranged at the front end of the nacelle and in electrical communication with the outer conductor and a down-conductor connected to ground and in electrical communication with the collecting conductor. The outer conductor and the collecting conductor have substantially a same distance to the rotational axis. Further, a wind turbine with such a lightning protection system is provided. | 12-15-2011 |
20120027594 | ARRANGEMENT FOR LIGHTNING PROTECTION - An arrangement for a lightning protection of a wind turbine blade is provided. According to the arrangement, the blade of the wind turbine is extended by a shaped winglet. A first lightning receptor is arranged at a tip end region of the blade. A second lightning receptor is arranged at the winglet. | 02-02-2012 |
20120043979 | Measuring system for a down conductor of a wind turbine blade - A measuring system for a down conductor of a wind turbine blade includes a measuring cable connected in series with its first end to the down conductor. A second end of the measuring cable is accessible for measurement of the electrical resistance in a lower base part of the blade. | 02-23-2012 |
20120194960 | Wind Turbine Blade with an Integrated Lightning Conductor - A method is provided for manufacturing a wind turbine rotor blade in which the blade is formed as a laminated structure by laying a composite material of fibre reinforcement material and/or core material in a mould defining the shape of the blade; evacuating the mould after laying the composite material; introducing a liquid polymer into the evacuated mould and wetting the composite material; curing the liquid polymer after the composite material has been wetted; and removing the mould after curing the liquid. At least one lightning conductor is integrated into the composite material before wetting it with the liquid polymer. Moreover, a wind turbine rotor blade made from a single laminated structure is provided with at least one lightning conductor is integrated into the laminated structure. | 08-02-2012 |
20120205133 | LIGHTNING PROTECTION SYSTEM - A lightning protection system for a tower of a wind turbine is provided. The tower includes a reinforced concrete tower wall in which a plurality of electrically conductive structural reinforcing elements are embedded during construction. The lightning protection system includes a plurality of the structural reinforcing elements connected in an electrically conductive manner with each other and with a ground terminal. Further, a method of incorporating such a lightning protection system in a reinforced concrete tower, and a wind turbine with such a lightning protection system is provided. | 08-16-2012 |
20120243997 | Wind turbine blade with lightning receptor and method for protecting the surface of a wind turbine blade - A wind turbine blade has at least one lightning receptor, wherein at least part of a surface of the wind turbine blade close to the lightning receptor is covered by a protective layer having electrical and thermal insulating material. Moreover, a method for protecting the surface of a wind turbine blade close to a lightning protector against temperature increase resulting from lightning impact is disclosed. At least part of the surface of the wind turbine blade is covered with a protective layer having electrical and thermal insulating material. | 09-27-2012 |
20120282097 | Lightning protection system for a wind turbine, wind turbine and method for protecting components of a wind turbine against lightning strikes - A lightning protection system for a wind turbine includes at least one insulated high-voltage cable, a pick-up unit and an additional insulated high-voltage cable. The at least one insulated high-voltage cable is electrically connected to a lightning receptor and to the pick-up unit. The pick-up unit is electrically connectable to an electrically grounded member by the additional insulated high-voltage cable. | 11-08-2012 |
20140112787 | LIGHTNING RECEPTOR ARRANGEMENT FOR A WIND TURBINE ROTOR BLADE - A lightning receptor arrangement for a wind turbine rotor blade arrangement includes a receptor element for receiving a lightning strike, a drainage channel extending from an interior cavity of the blade through the receptor element to an outside surface of the blade, and an electrically conductive connection to a down conductor of a grounding arrangement of the wind turbine. The receptor element is arranged at a point of origin of a vortex generated during rotation of the rotor blade. | 04-24-2014 |