Patent application number | Description | Published |
20090303484 | WEB INSPECTION CALIBRATION SYSTEM AND RELATED METHODS - Systems and methods for calibrating a web inspection system. | 12-10-2009 |
20130113919 | HIGH RESOLUTION AUTOFOCUS INSPECTION SYSTEM - An inspection device comprises a camera assembly including an objective lens that captures and collimates light associated with an object being inspected, an image forming lens that forms an image of the object based on the collimated light, and a camera that renders the image. The camera assembly defines a focal point distance from the objective lens that defines a focal point of the camera assembly. The inspection device comprises an optical sensor positioned to detect an actual distance between the objective lens and the object, an actuator that controls positioning of the objective lens to control the actual distance between the objective lens and the object, and a control unit that receives signals from the optical sensor indicative of the actual distance. Control signals from the control unit can control the actuator to adjust the actual distance such that the actual distance substantially equals the focal point distance. | 05-09-2013 |
20130202200 | COMPUTER-AIDED ASSIGNMENT OF RATINGS TO DIGITAL SAMPLES OF A MANUFACTURED WEB PRODUCT - A computerized rating tool is described that assists a user in efficiently and consistently assigning expert ratings (i.e., labels) to a large collection of training images representing samples of a given product. The rating tool provides mechanisms for visualizing the training images in an intuitive and configurable fashion, including clustering and ordering the training images. In some embodiments, the rating tool provides an easy-to-use interface for exploring multiple types of defects represented in the data and efficiently assigning expert ratings. In other embodiments, the computer automatically assigns ratings (i.e., labels) to the individual clusters containing the large collection of digital images representing the samples. In addition, the computerized tool has capabilities ideal for labeling very large datasets, including the ability to automatically identify and select a most relevant subset of the images for a defect and to automatically propagate labels from this subset to the remaining images without requiring further user interaction. | 08-08-2013 |
20130322733 | SYSTEM FOR DETECTION OF NON-UNIFORMITIES IN WEB-BASED MATERIALS - A system is described for detecting the presence of non-uniformity patterns and providing output indicative of a severity of each type of non-uniformity pattern. The system includes a computerized rating tool that assists a user in efficiently and consistently assigning expert ratings (i.e., labels) to a large collection of training images representing samples of a given product. In addition, the rating software develops a model that allows a computerized inspection system to detect the presence of non-uniformity patterns in a manufactured web material in real time and provide output indicative of a severity level of each pattern on a continuous scale. The system also includes algorithmic and hardware approaches to significantly that increase the throughput of the inspection system. | 12-05-2013 |
20140240720 | LINEWIDTH MEASUREMENT SYSTEM - A method includes passing an interrogating light beam through a Fourier transform lens and onto the surface of a material to form a Fraunhofer diffraction pattern of one or more surface features of the material. An image of the diffraction pattern is processed to determine the dimensions of the feature. | 08-28-2014 |
Patent application number | Description | Published |
20120161444 | WIND TURBINE PROVIDING GRID SUPPORT - A variable speed wind turbine is configured to provide additional electrical power to counteract non-periodic disturbances in an electrical grid. A controller monitors events indicating a need to increase the electrical output power from the wind turbine to the electrical grid. The controller is configured to control the wind turbine as follows: after an indicating event has been detected, the wind turbine enters an overproduction period in which the electrical output power is increased, wherein the additional electrical output power is taken from kinetic energy stored in the rotor and without changing the operation of the wind turbine to a more efficient working point. When the rotational speed of the rotor reaches a minimum value, the wind turbine enters a recovery period to re-accelerate the rotor to the nominal rotational speed while further contributing to the stability of the electrical grid by outputting at least a predetermined minimum electrical power. | 06-28-2012 |
20120292904 | METHOD FOR EMULATION OF SYNCHRONOUS MACHINE - The present invention relates to electric energy sources, such as a single wind power turbine or wind power plant, that are interfaced with the utility grid through power electronic converters. In particular, the present invention relates to specific techniques and methodologies for power electronic converters for stabilizing the utility grid during transient conditions and for providing similar stability mechanisms that are inherently present in electric synchronous generators while maintaining the possibility for fast and decoupled following of set points for generated active and/or reactive powers. | 11-22-2012 |
20120310426 | SYSTEMS AND METHODS FOR GENERATING AN INERTIAL RESPONSE TO A CHANGE IN THE VOLTAGE OF AN ELECTRICIAL GRID - Systems, methods, and computer program products for providing an inertial response by a wind power system to power fluctuations in an electrical grid. The system includes a synthetic inertial response generator configured to generate a power offset in response to fluctuations in grid voltage. The power offset signal is generated by determining a quadrature component the grid voltage using an internal reference voltage having an angular frequency and phase angle that is synchronized to the electrical grid by a control loop. The quadrature component is used to determine a synchronous power level. A control loop error signal is produced by the difference between the synchronous power level and the wind turbine system power output. Changes in the grid frequency produce an error signal that is added to the power set point of wind turbine system output controllers to provide a power system inertial power output response. | 12-06-2012 |
20130140820 | WIND-POWER PRODUCTION WITH REDUCED POWER FLUCTUATIONS - A method of operating at partial load a wind turbine ( | 06-06-2013 |
Patent application number | Description | Published |
20120310426 | SYSTEMS AND METHODS FOR GENERATING AN INERTIAL RESPONSE TO A CHANGE IN THE VOLTAGE OF AN ELECTRICIAL GRID - Systems, methods, and computer program products for providing an inertial response by a wind power system to power fluctuations in an electrical grid. The system includes a synthetic inertial response generator configured to generate a power offset in response to fluctuations in grid voltage. The power offset signal is generated by determining a quadrature component the grid voltage using an internal reference voltage having an angular frequency and phase angle that is synchronized to the electrical grid by a control loop. The quadrature component is used to determine a synchronous power level. A control loop error signal is produced by the difference between the synchronous power level and the wind turbine system power output. Changes in the grid frequency produce an error signal that is added to the power set point of wind turbine system output controllers to provide a power system inertial power output response. | 12-06-2012 |
20130140820 | WIND-POWER PRODUCTION WITH REDUCED POWER FLUCTUATIONS - A method of operating at partial load a wind turbine ( | 06-06-2013 |
20150120070 | METHOD FOR COORDINATING FREQUENCY CONTROL CHARACTERISTICS BETWEEN CONVENTIONAL PLANTS AND WIND POWER PLANTS - The present invention relates to a method for operating an electrical power system, comprising at least one wind turbine generator and at least one other power source, the method comprises the steps of, setting a set of technical requirements and limits for the electrical power system, including a total power reserve and at least one of: maximum electrical frequency deviation and allowable wind power electrical frequency fluctuations, distributing the total power reserve between the at least one other power source and a total wind power capacity available from the at least one wind turbine generator, and calculating in response thereto an amount of power reserve from the at least one wind turbine generator, and providing settings for a wind power controller, the settings comprising the set of technical requirements and the amount of power reserve from the at least one wind turbine generator. The invention also relates to a power plant operating according to the method. | 04-30-2015 |
20150159626 | POWER SYSTEM AND METHOD FOR OPERATING A WIND POWER SYSTEM WITH A DISPATCHING ALGORITHM - The present invention relates to a power system having a plurality wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators, where each of the plurality of wind turbine generator being related to a wind turbine controller, the wind turbine controller being arranged to control an active power output in its related wind turbine generator according to an active power set point received from the wind power plant controller; a first subset of wind turbine generators operating at an active power output unrestricted of the active power set point; and a second subset of wind turbine generators operating according to an active power set point; and wherein the wind power plant controller communicates the active power set point, in accordance with the active power output of the first subset of the plurality of wind turbines generators, so as to reduce active power fluctuation of the aggregated active power output of the first and second subset of the plurality of wind turbines generators. The present invention also relates to method accordingly. | 06-11-2015 |
Patent application number | Description | Published |
20120036865 | AIR BLEED HAVING AN INERTIAL FILTER IN THE TANDEM ROTOR OF A COMPRESSOR - The invention relates to a secondary air system for a compressor of centrifugal or mixed type including a rotor presenting an axis of rotation, said compressor being adapted to compress an oxidizer gas. The secondary air system includes an oxidizer gas bleed system arranged in the rotor. | 02-16-2012 |
20140105723 | GAS TURBINE DIFFUSER BLOWING METHOD AND CORRESPONDING DIFFUSER - A diffuser of a compressor of centrifugal or mixed type includes two end plates which enclose a plurality of regularly distributed circumferential blades, and at least one transverse upstream passage produced in lower or upper surfaces of the blades. An injection/withdrawal coupling is achieved by a recirculation of a stream in an air passage of the diffuser on the basis of injection of air from at least one point in a leading edge zone of an upstream side of the diffuser. Blowing of air is then effected in at least one groove formed along a lateral flank of each blade by withdrawal of the air stream in a region of a trailing edge. Thereby, effectively separation of the air in a boundary layer in a gas turbine compressor diffuser is realized by re-energizing the boundary layer with air at a higher pressure by a suction/re-injection coupling. | 04-17-2014 |
20140127023 | CENTRIFUGAL COMPRESSOR IMPELLER - An impeller of a centrifugal compressor, the impeller including a web and blades secured to the web on a front face of the web. A point of intersection between a trailing edge and a blade root is at least one half-thickness of the web further forward than the blade root at an intermediate diameter of the impeller, and a point of intersection between the trailing edge and the blade tip is also further forward than the blade tip at an intermediate diameter of the impeller. | 05-08-2014 |
20140133957 | METHOD OF DIFFUSING A GAS TURBINE COMPRESSION STAGE, AND DIFFUSION STAGE FOR IMPLEMENTING SAME - A diffusion stage of a radial or mixed gas turbine engine compressor includes an impeller formed by two plates, between which fluid flows in a centrifugal or inclined manner from a center towards a periphery. Blades of a cascade are distributed between the plates to channel the flow of the fluid between leading edges of the blades at the center and trailing edges at the periphery. At least one of the plates has an internal face including at least one zone with alternating hollow and bump curvatures between two adjacent blades, in at least one of two substantially perpendicular directions, in the direction of flow along the blades and in an inter-blade tangential direction. | 05-15-2014 |
Patent application number | Description | Published |
20110296976 | MINE ROLLER NEUTRALIZATION SYSTEM - A mine roller assembly for a mine roller is provided for detonating mines located in or on an underlying ground surface. A bracket is adapted for attachment to a mine roller system frame. An arm is pivotally connected to the bracket. A spring and damper system extends between the bracket and the arm. A wheel assembly is rotatably connected to the arm and is configured to interact with the underlying surface. | 12-08-2011 |
20110298274 | LIGHTWEIGHT WEAR RING - A segmented wear ring | 12-08-2011 |
20120153712 | TRACKED VEHICLE WHEEL - A road wheel for a tracked vehicle is provided with a circular mounting flange having a dished wall extending radially outwards and circumferentially therefrom, a peripheral rim having a first edge and a second edge with the rim connected to an outer edge of the dished wall at an intermediate region of the rim, and a first lip extending from the first edge. Another road wheel for a tracked vehicle is provided with a mounting flange, a peripheral rim, at least one inner dished wall, at least one outer dished wall offset from the inner dished wall along the flange, and at least two connector walls with each connector wall extending between the inner dished wall, outer dished wall, and the peripheral rim. | 06-21-2012 |
20120299371 | TRACK OVER TIRE SYSTEM AND METHOD - A system and method of increasing the traction and mobility of a tandem axled vehicle by disposing an endless track | 11-29-2012 |