Abstract: A method for controlling the stability of an electric supply grid is provided. A first device, designed to exchange electrical energy with the supply grid, locates a part of the supply grid, with which the first device is associated for an energy connection, by a geographic location of the first device. The first device determines parameters for an intended energy exchange. At least one second device associated with the part of the supply grid for energy exchange also determines parameters for an intended energy exchange. The first device performs the energy exchange considering the parameters of the first and the second device such that an electric stability of the part of the supply grid is ensured.

Abstract: A method and system for adjusting the stress on an electrical and/or electronic subassembly in a wind turbine. The method allows determining for the electrical and/or electronic subassembly an expected service life up to the point when a maintenance indicator value is reached, which represents a state of the subassembly at which, on the basis of conditions defined in advance, the subassembly should be maintained. The method further allows comparing the expected service life against the time point for the next maintenance of the wind turbine and controlling the wind turbine and/or at least one other wind turbine in an area around the wind turbine in such a way that the stress on the electrical and/or electronic subassembly is reduced.

Abstract: A method is provided for adjusting the stress on an electrical and/or electronic subassembly in a wind turbine. The method includes determining for the electrical and/or electronic subassembly an expected service life up to the point when a maintenance indicator value is reached, which represents a state of the subassembly at which, on the basis of conditions defined in advance, the subassembly should be maintained The method also includes comparing the expected service life against the time point for the next maintenance of the wind turbine. The method further includes controlling the wind turbine and/or at least one other wind turbine in an area around the wind turbine in such a way that the stress on the electrical and/or electronic subassembly is reduced.

Abstract: A method for controlling the stability of an electric supply grid is provided. A first device, designed to exchange electrical energy with the supply grid, locates a part of the supply grid, with which the first device is associated for an energy connection, by a geographic location of the first device. The first device determines parameters for an intended energy exchange. At least one second device associated with the part of the supply grid for energy exchange also determines parameters for an intended energy exchange. The first device performs the energy exchange considering the parameters of the first and the second device such that an electric stability of the part of the supply grid is ensured.

Abstract: A method and an arrangement for monitoring a component which is a part of a solar power system is provided. The component receives and converts solar energy using a receiver. The temperature of the receiver of the component is determined using a remote monitoring method. The component is then adjusted or corrected in accordance with the temperature.

Abstract: A lightning protection system is provided for a wind turbine blade via charge initiation (Charge Initiated Lightning Protection). The lightning protection system includes at least one electric charge generator for generating electric charge at a lightning receptor of the wind turbine blade such that an electrostatic field is generated at the lightning receptor leading lightning current directly to the lightning receptor. Additionally a wind turbine blade having at least one such lightning protection system is provided.

Abstract: A wind turbine blade is provided having a base body with a base material and at least one coating of the base body with a coating material, wherein the coating material includes a composite material with conductive particles. The composite material includes fiber glass. In one embodiment, the fiber glass forms a glass fiber mat. Additionally a method for manufacturing such a wind turbine blade is provided. The method includes: a) providing the base body of the wind turbine blade; and b) applying the coating on a surface of the base body.

Abstract: A technique is provided for detecting whether an object of interest is being carried by a subject. The technique includes coarsely scanning the subject with an electromagnetic radiation, measuring reflective intensity of radiation reflected from the subject, and detecting the presence or absence of the object of interest based upon the measured reflective intensity.

Abstract: The device for detecting damage of a wind energy turbine of a wind energy turbine rotor blade, due to a lightning strike, comprises several magnetic or electric field sensors distributed along the length of a rotor blade of the wind energy turbine for measuring the magnetic or electric field concentration along the rotor blade and, an evaluation unit connected to the magnetic or electric field sensors for receiving the measured signals thereof, wherein damage of the wind energy turbine of the rotor blade caused by a lightning strike is calculated by the evaluation unit based on the measured concentration of the magnetic or electric field along the length of the rotor blade.

Abstract: A technique is provided for examining a subject. The technique includes illuminating at least a part of the subject with THz radiation and detecting THz radiation reflected and/or transmitted from the illuminated part and incident upon a detector array by measuring change in capacitance corresponding to the incident THz radiation.

Abstract: A method for directing a current generated by a lightning striking a wind turbine is described. The method includes directing the current from a main shaft of the wind turbine to a brake disc attached to the shaft, and directing the current from the brake disc to one of a spark gap and a roller mechanism coupled to a down-conductor at a ground voltage.

Abstract: A technique is provided for examining a subject. The technique includes illuminating at least a part of the subject with THz radiation and detecting THz radiation reflected and/or transmitted from the illuminated part and incident upon a detector array by measuring change in capacitance corresponding to the incident THz radiation.

Abstract: A technique is provided for detecting whether an object of interest is being carried by a subject. The technique includes coarsely scanning the subject with an electromagnetic radiation, measuring reflective intensity of radiation reflected from the subject, and detecting the presence or absence of the object of interest based upon the measured reflective intensity.

Abstract: The method for controlling a first wind energy turbine of a wind park comprising multiple wind energy turbines connected to the grid, in situations where the first energy turbine operates substantially at zero energy output level, comprises the steps of determining whether at least one of the other wind energy turbines of the wind park is operated above a predetermined energy output level, and if at least one of the other wind energy turbines of the wind park is operated above the predetermined energy output level, maintaining connection of the first wind energy turbine to the grid.

Abstract: A security detection system includes a radiation source configured to generate and direct terahertz radiation onto an object. Further, the system also includes a detector module configured to detect and process radiation from the object, the detector module comprising a parallel arrangement of at least two low noise amplifiers, each operable in a respective frequency band.

Abstract: A security detection system is presented. The system includes a radiation source configured to generate and direct terahertz radiation onto an object. Further, the system also includes a detector module configured to detect and process radiation from the object, the detector module comprising a parallel arrangement of at least two low noise amplifiers, each operable in a respective frequency band.

Abstract: A tamper detection system is described as including at least one optical energy transmitter and a material for transmitting optical energy from the at least one optical energy transmitter. The system further includes at least one support structure adjacent the energy transmitting layer and at least one detector for detecting a change in energy distribution within the material. Also described is a container utilizing the system.

Abstract: A tamper and/or intrusion detection system is provided for making a structure tamperproof. The tamper and/or intrusion detection system includes an energy source for transmitting energy through an energy-transmitting layer, and a detector for detecting a change in energy distribution within the energy-transmitting layer.

Abstract: A method for directing a current generated by a lightning striking a wind turbine is described. The method includes directing the current from a main shaft of the wind turbine to a brake disc attached to the shaft, and directing the current from the brake disc to one of a spark gap and a roller mechanism coupled to a down-conductor at a ground voltage.