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| Number | Title | Issue Date |
| 8184460 | Solar inverter and control method A power generation system including a photovoltaic (PV) module to generate direct current (DC) power is provided. The system includes a controller to determine a maximum power point for the power generation system and a boost converter for receiving control signals ... | 05/22/2012 |
| 8180185 | Fiber optic sensor for detecting multiple parameters in a harsh environment A fiber optic sensor is provided. The fiber optic sensor includes a fiber core having a plurality of grating elements wherein, the grating elements comprise a periodic or a quasiperiodic modulated microcrystalline and silicon dioxide tetrahedral structure and a clad... | 05/15/2012 |
| 8178986 | Wind turbine operation system and method A method of operating a wind turbine comprises obtaining current wind speed, forecasting wind speeds by creating probability density functions of wind speeds at a series of time points in the future based on the obtained current wind speed and past wind speeds, dete... | 05/15/2012 |
| 8178008 | Semiconductor material for radiation absorption and detection A semiconductor material for radiation absorption and detection comprising a composition of stoichiometry Li(M12+, M22+, M32+, . . . )(G1V, G2V, G3 | 05/15/2012 |
| 8176739 | Coanda injection system for axially staged low emission combustors The low emission combustor includes a combustor housing defining a combustion chamber having a plurality of combustion zones. A liner sleeve is disposed in the combustion housing with a gap formed between the liner sleeve and the combustor housing. A secondary nozzl... | 05/15/2012 |
| 8174150 | System and method for control of a grid connected power generating system A power generating system includes an energy source coupled to a DC link through a first power converter and a second power converter to couple the DC link to a power grid. A first controller in the power generating system regulates voltage on the DC link and a seco... | 05/08/2012 |
| 8174134 | Systems for contactless power transfer A system includes a first coil mechanically coupled to a first component and electrically coupled to a power source. The system further includes a second coil mechanically coupled to a second component and configured to receive power from the first coil via a magnet... | 05/08/2012 |
| 8172717 | Compliant carrier wall for improved gearbox load sharing A planetary gear system and a method of fabricating same. The planetary gear system includes at least one planet gear, at least one planet pin receiving the at least one planet gear, and a carrier. The carrier itself includes at least one carrier opening for accommo... | 05/08/2012 |
| 8171633 | Method for assembling a multi-segment wind turbine blade A multi segment wind turbine blade comprises at least two blade segments. A first blade segment comprises an outer skin, a bulkhead, and first alignment brackets removably coupled to the outer skin of the first blade segment. A first portion of a flange of the bulkh... | 05/08/2012 |
| 8167570 | Fluid turbine blade and method of providing the same A fluid turbine blade is provided. The fluid turbine blade includes a centrally disposed longitudinal spar having a substantially circumferential cross section. The fluid turbine blade also includes at least one rib assembly affixed to said longitudinal spar. The fl... | 05/01/2012 |
| 8154730 | Arc flash detection method An arc flash detection method includes transmitting light via an optical fiber to a sensor and transmitting light from the sensor that includes components representative of acoustic waves and light for filtering and processing to detect an occurrence of an arc flash... | 04/10/2012 |
| 8147130 | Heat flux measurement device for estimating fouling thickness A heat flux measurement device includes at least two thermocouples disposed within a front portion of the device at different axial distances from a front wall of the device. A correlation between the measured heat fluxes from the device over a period of time is use... | 04/03/2012 |
| 8144490 | Operation of a three level converter A method of operating a three level converter includes controlling the output voltage of the converter when a DC link voltage of the three level converter is lower than one-half of a rated DC link voltage of the converter by, for each leg of the converter, alternate... | 03/27/2012 |
| 8144005 | System and method for advanced condition monitoring of an asset system A method for advanced condition monitoring of an asset system includes monitoring a variable of an asset system using the at least one sensor of a smart sensor system; determining whether the asset system has departed from normal operation; and identifying the varia... | 03/27/2012 |
| 8141416 | Systems and methods for identifying wind turbine performance inefficiency The present disclosure relates to an approach by which low-performing turbines may be identified from among a plurality of wind turbines, such as may be present at a wind power plant. In accordance with one embodiment, low-performing turbines are identified from amo... | 03/27/2012 |
| 8137074 | Wind turbine lightning protection system A glass-reinforced fiber or carbon-reinforced wind turbine blade having a suction side and a pressure side includes a tip portion adapted with an electric field control region disposed solely on or within the tip portion. The electric field control region is in elec... | 03/20/2012 |
| 8135245 | Fiber optic sensing system A fiber optic sensing system comprises a housing disposed in a flow path, and a fiber optic sensor. The fiber optic sensor comprises an optical fiber secured in the housing, a Bragg grating, a light source for transmitting light to the optical fiber, and a detector ... | 03/13/2012 |
| 8123488 | System and method for joining turbine blades A blade assembly including an outboard blade segment is provided. The outboard blade segment includes an outboard blade shell, first and second outboard bulkheads situated within the outboard blade shell, and an outer box supported by and aligned by the outboard bul... | 02/28/2012 |
| 8121804 | Electrical network analysis of a multiphase system A method for determining characteristics of a multi-material object is provided. The method includes determining an electric element matrix representing the multi-material object. The electric element matrix is pre-multiplied by a first mathematical transformation m... | 02/21/2012 |
| 8120890 | High temperature film capacitor A capacitor comprises a substrate layer, a first electrode layer disposed on the substrate layer, and a first dielectric layer disposed on the electrode layer. The dielectric layer comprises a polymeric material having an elongation less than or equal to about 5 per... | 02/21/2012 |
| 8120522 | System and method for inspecting a wind turbine blade A wind turbine blade inspection system includes a frequency modulated continuous wave radar system configured to be movable with respect to a wind turbine blade while transmitting reference microwave signals and receiving reflected microwave signals and a processor ... | 02/21/2012 |
| 8080891 | Hybrid braking system and method A wind turbine hybrid braking system is presented. The system includes a generator coupled to a main shaft of the wind turbine for generating and transmitting power. A mechanical brake is coupled to the main shaft for applying reaction torque upon braking of the win... | 12/20/2011 |
| 8067847 | Variable speed machine assembly and method for making the same A variable speed machine assembly includes an input shaft, a variable speed magnetically geared generator coupled to the input shaft, an electrical machine coupled to the input shaft, and a power converter coupled to the variable speed magnetically geared generator ... | 11/29/2011 |
| 8058621 | Elemental composition detection system and method A system to detect a plurality of elements is proposed. The system includes one or more X-ray sources for transmitting X-rays towards a sample and also includes plurality of photon detectors. An array of crystals are arranged in a curvature with appropriate geometry... | 11/15/2011 |
| 8052935 | System and method for removing sulfur from gas stream A system for removing sulfur from a gaseous stream includes (a) a reaction bed for receiving the gaseous stream and for reacting sulfur dioxide and at least some of the hydrogen sulfide of the gaseous stream into elemental sulfur to provide an elemental sulfur strea... | 11/08/2011 |
| 8050879 | Phase identification system and method A method to identify phase is presented. The method includes obtaining electrical parameters at a node and a substation of an electrical grid, processing the electrical parameters of the node and the substation into processed electrical parameters comprising at leas... | 11/01/2011 |
| 8050143 | System and method for generating a threat alert A system for generating a threat alert in an infrastructure component is provided. The system includes multiple acoustic sensors configured to detect a signal. The system also includes a processing circuitry including at least one analog-to-digital converter configu... | 11/01/2011 |
| 8049097 | Solar cell including cooling channels and method for fabrication The solar cell comprises a front side comprising a first doped layer, a backside comprising formations defining channels therebetween, the backside further comprising a second doped layer situated on at least some of the surfaces of the channels facing the front sid... | 11/01/2011 |
| 8044527 | Electric power generation with magnetically geared machine A power generation system includes: a prime mover; an electrical machine coupled to the prime mover and configured for converting mechanical power to electrical power, the electrical machine having a power factor of less than or equal to 0.7; a reactive power supply... | 10/25/2011 |
| 8043720 | Process of producing a ceramic matrix composite article and article formed thereby A CMC article and process for producing the article to have a layer on its surface that protects a reinforcement material within the article from damage. The method entails providing a body containing a ceramic reinforcement material in a matrix material that contai... | 10/25/2011 |
| 8042412 | Turbomachinery system fiberoptic multi-parameter sensing system and method A fiberoptic multi-parameter sensing system for monitoring turbomachinery system shaft static and dynamic torques, vibration modes and associated operation status includes a multi-furcated fiber bundle based optical splitter configured to transmit light to a surface... | 10/25/2011 |
| 8041467 | Optimal dispatch of demand side electricity resources A method of load dispatch generates a load dispatch curve in response to both the opportunity cost of dispatching resources with a contractually limited number of dispatches in a given time period and estimated rebound effect data. The method identifies a best time ... | 10/18/2011 |
| 8041225 | Contactless infrared data transmission for wind turbines An apparatus for enabling transmission of signals and data via means of infrared (IR) light for a wind turbine includes a plurality of IR data communication elements configured to provide unidirectional and bidirectional IR data exchange between non-rotating portion... | 10/18/2011 |
| 8040642 | Smart capacitor A smart capacitor includes a main capacitor having at least one intelligence mechanism selected from a prognostics mechanism and a high speed protection mechanism integrated within the main capacitor. The at least one intelligence mechanism and the main capacitor ar... | 10/18/2011 |
| 8040517 | Arc flash detection system and method A sensor to simultaneously detect light and acoustic waves is presented. The sensor includes one or more optical fibers and a diaphragm disposed near one end of at least one of the one or more optical fibers. The diaphragm is configured to vibrate upon incidence of ... | 10/18/2011 |
| 8038397 | System and method of deicing and prevention or delay of flow separation over wind turbine blades A system for deicing a wind turbine blade includes an electrically powered active plasma actuator applied to a desired portion of a wind turbine blade. The activated plasma actuator energizes the air in the vicinity of the plasma actuator to increase the surface tem... | 10/18/2011 |
| 8033320 | High emittance shell molds for directional casting Shell molds and processes for making the shell molds that exhibit high emissivity in the red and infrared regions. In this manner, thermal resistance within a gap formed between solidifying cast metal and the interior mold surface is decreased. In one embodiment, th... | 10/11/2011 |
| 8028996 | System and method for adjusting stiffness of a brush sealing system A brush sealing system includes a plurality of bristles, each having a first end coupled to a holding device and a second end protruding outwards from the holding device. One or more shims are disposed between the first end of each of the bristles and the holding de... | 10/04/2011 |
| 8023297 | High efficiency photovoltaic inverter A photovoltaic (PV) inverter includes a single DC to AC converter configured to operate solely in a buck mode for PV array voltage levels greater than a connected power grid instantaneous voltage plus converter margin, and further configured to operate solely in a b... | 09/20/2011 |
| 8022572 | Genset system with energy storage for transient response A power generating system having a variable speed genset is provided. The variable speed genset includes an engine and a variable speed generator. The variable speed generator is mechanically coupled to the engine and is configured to generate electrical power. The ... | 09/20/2011 |
