Abstract: A system for authorizing respective initiation of a plurality of remote services by or for mobile device users. The system comprises a processor, and storage devices, at an authorization service (AS). A storage device stores public key portions of authentication tokens for mobile device users and remote service identifiers. Stored program code executable by the AS processor receives only public key portions of authentication tokens created on mobile devices. For actions to initiate a remote service, the program code is for receiving a remote service identifier and challenge information from a remote service server, transmitting at least a portion of the challenge information to a user's mobile device, receiving messages from the user's mobile device, validating at least one of the received messages using the stored public key portion of the authentication token for the user, and if validated, initiating the remote service.

Abstract: A system for authorizing respective initiation of a plurality of remote services by or for mobile device users. The system comprises a processor, and storage devices, at an authorization service (AS). A storage device stores public key portions of authentication tokens for mobile device users and remote service identifiers. Stored program code executable by the AS processor receives only public key portions of authentication tokens created on mobile devices. For actions to initiate a remote service, the program code is for receiving a remote service identifier and challenge information from a remote service server, transmitting at least a portion of the challenge information to a user's mobile device, receiving messages from the user's mobile device, validating at least one of the received messages using the stored public key portion of the authentication token for the user, and if validated, initiating the remote service.

Abstract: Systems and computer-implemented methods for authorizing respective access by each of a plurality of Internet users to a respective one or more Internet services provided by each of a plurality of Internet service providers. A system includes a processor, and non-transient computer readable storage media, at a single identity provider.

Abstract: A method for overspeed monitoring of a wind turbine may generally include monitoring an actual rotor speed of the wind turbine while the wind turbine is operating at a current speed setpoint and referencing a dynamic overspeed setting for the wind turbine. The method may also include determining a final overspeed setting to be applied for the wind turbine based on a comparison between the dynamic overspeed setting and a predetermined overspeed setting for the wind turbine. In addition, the method may include comparing the actual rotor speed of the wind turbine to the final overspeed setting, and when the actual rotor speed is equal to or exceeds the final overspeed setting, initiating a control action to adjust an operation of the wind turbine in a manner that reduces the actual rotor speed.

Abstract: A method for overspeed monitoring of a wind turbine may generally include monitoring an actual rotor speed of the wind turbine while the wind turbine is operating at a current speed setpoint and referencing a dynamic overspeed setting for the wind turbine. The method may also include determining a final overspeed setting to be applied for the wind turbine based on a comparison between the dynamic overspeed setting and a predetermined overspeed setting for the wind turbine. In addition, the method may include comparing the actual rotor speed of the wind turbine to the final overspeed setting, and when the actual rotor speed is equal to or exceeds the final overspeed setting, initiating a control action to adjust an operation of the wind turbine in a manner that reduces the actual rotor speed.

Abstract: Systems and computer-implemented methods for authorizing respective access by each of a plurality of Internet users to a respective one or more Internet services provided by each of a plurality of Internet service providers. A system includes a processor, and non-transient computer readable storage media, at a single identity provider.

Abstract: Systems and computer-implemented methods for authorizing respective access by each of a plurality of Internet users to a respective one or more Internet services provided by each of a plurality of Internet service providers. A system includes a processor, and non-transient computer readable storage media, at a single identity provider.

Abstract: Methods of manufacturing rotor blade components for a wind turbine and rotor blade components produced in accordance with such methods are disclosed. In one embodiment, the method generally includes providing a mold of the rotor blade component; coating at least a portion of an interior surface of the mold with an elastomeric material; inserting impletion material within the mold so as to at least partially reduce an open internal volume within the mold; inserting a foam material within the mold; and, removing the rotor blade component from the mold, wherein the elastomeric material forms a cover skin around at least a portion of the rotor blade component. In an alternative embodiment, the method includes providing at least one support member defining a profile for the rotor blade component on a mold surface; coating at least a portion of the support member with an elastomeric material; and, allowing the elastomeric material to cure on the mold surface so as to form the rotor blade component.

Abstract: Systems and computer-implemented methods for authorizing respective access by each of a plurality of Internet users to a respective one or more Internet services provided by each of a plurality of Internet service providers. A system includes a processor, and non-transient computer readable storage media, at a single identity provider.

Abstract: A wind turbine may include a tower, a nacelle mounted on the tower and a rotor coupled to the nacelle. The rotor may include a hub and at least one rotor blade extending from the hub. In addition, the wind turbine may include a nozzle mounted on or within the tower, the nacelle or the hub. The nozzle may include an inlet and an outlet. Moreover, the nozzle may be configured to accelerate a flow of fluid through the outlet such that an ultrasonic sound emission is produced by the nozzle.

Abstract: A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a body extending between a blade root and a blade tip. The body may include a pressure side and a suction side extending between a leading edge and a trailing edge. In addition, the rotor blade may include a nozzle mounted on or within the body. The nozzle may include an inlet, an outlet and a converging section between the inlet and the outlet. The converging section may be configured to accelerate a flow of air through the nozzle such that an ultrasonic sound emission is produced.

Abstract: Methods of manufacturing rotor blade components for a wind turbine and rotor blade components produced in accordance with such methods are disclosed. In one embodiment, the method generally includes providing a mold of the rotor blade component; coating at least a portion of an interior surface of the mold with an elastomeric material; inserting impletion material within the mold so as to at least partially reduce an open internal volume within the mold; inserting a foam material within the mold; and, removing the rotor blade component from the mold, wherein the elastomeric material forms a cover skin around at least a portion of the rotor blade component. In an alternative embodiment, the method includes providing at least one support member defining a profile for the rotor blade component on a mold surface; coating at least a portion of the support member with an elastomeric material; and, allowing the elastomeric material to cure on the mold surface so as to form the rotor blade component.

Abstract: The present subject matter is directed to a bearing assembly for a wind turbine. The bearing assembly includes an outer race, an inner race rotatable relative to the outer race, a plurality of rolling elements positioned between the inner and outer races, and a cage assembly configured to maintain separation between neighboring rolling elements. The cage assembly includes a plurality of cage elements and a plurality of spacers. Each of the cage elements are separated by at least one of the spacers. Further, each of the cage elements extends around at least a portion of the plurality of rolling elements. Moreover, at least one of the spacers contact one or more of the rolling elements.

Abstract: A wind turbine may include a tower, a nacelle mounted on the tower and a rotor coupled to the nacelle. The rotor may include a hub and at least one rotor blade extending from the hub. In addition, the wind turbine may include a nozzle mounted on or within the tower, the nacelle or the hub. The nozzle may include an inlet and an outlet. Moreover, the nozzle may be configured to accelerate a flow of fluid through the outlet such that an ultrasonic sound emission is produced by the nozzle.

Abstract: A rotor blade for a wind turbine is disclosed. The rotor blade may generally include a body extending between a blade root and a blade tip. The body may include a pressure side and a suction side extending between a leading edge and a trailing edge. In addition, the rotor blade may include a nozzle mounted on or within the body. The nozzle may include an inlet, an outlet and a converging section between the inlet and the outlet. The converging section may be configured to accelerate a flow of air through the nozzle such that an ultrasonic sound emission is produced.

Abstract: A shroud for a wind turbine and a method for modifying performance of a wind turbine are disclosed. The wind turbine includes a rotor mounted to a nacelle, the rotor including a plurality of rotor blades and defining an outer diameter. The shroud is positioned downstream of the rotor in an air flow direction, and has an inner diameter of less than the outer diameter of the rotor.

Abstract: In one aspect, a method for controlling the amplitude modulation of the noise generated by wind turbines is generally disclosed. The method may include determining a sound characteristic of a turbine sound wave generated by a wind turbine and generating an additive sound wave based on the sound characteristic such that a resultant sound wave is produced having a peak-to-peak amplitude that is smaller than a peak-to-peak amplitude of the turbine sound wave.

Abstract: In one aspect, a method for controlling the amplitude modulation of noise generated by a wind turbine is disclosed. The method may generally include determining an angle of attack of a rotor blade of a wind turbine and maintaining the angle of attack at a substantially constant value during rotation of the rotor blade in order to reduce the amplitude modulation of the noise generated by the wind turbine.

Abstract: In one aspect, a method for controlling the amplitude modulation of the noise generated by wind turbines is disclosed. The method may include determining a rotor position of a first wind turbine, determining a rotor position of a second wind turbine, determining if the first and second wind turbines are operating in-phase and, in the event that the first and second wind turbines are operating in-phase, adjusting an operating condition of at least one of the first wind turbine and the second wind turbine so that the first and second wind turbines operate out-of-phase.

Abstract: A method of establishing a wheel space temperature alarm in a turbomachine includes calculating an expected wheel space temperature based on operating conditions, measuring an actual wheel space temperature, and signaling an over temperature condition if the actual wheel space temperature exceeds the expected wheel space temperature.