Perley
David Perley, Manchester, CT US
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20150098190 | HEAT DISSIPATION - Embodiments are directed to an apparatus comprising a thermal block coupled to an electronic device, a thermal strap coupled to the thermal block, and retention hardware coupled to the thermal strap and configured to retain the thermal block within the thermal strap when the apparatus is exposed to at least one variable environmental condition. | 04-09-2015 |
Mitchell O. Perley, Charlestown, MA US
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20110270543 | PHOTOCONDUCTIVE PHOTODIODE BUILT-IN TEST (BIT) - A Built-In Test (BIT) for a photoconductive photodiode is performed using the health or characteristics of the photodiode's parasitic capacitance as a “proxy” for the health or characteristics of the photodiode itself. A failure or degradation of the photodiode manifests as a similar failure or degradation of the parasitic capacitance. Under normal operating conditions, the photoconductive photodiode responds to incident photons from a target by generating a photocurrent signal at its cathode. A processor processes the signals from one or more photodiodes to evaluate characteristics of the target. To perform the BIT, a time-varying voltage signal is applied at the photodiode's anode. This signal is coupled through the parasitic capacitance to produce a test current signal at the photodiode's anode. The processor processes the signal to evaluate the health or characteristics of the parasitic capacitance and thus the photodiode. | 11-03-2011 |
Mitchell O'Neal Perley, Santa Barbara, CA US
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20110140208 | FABRICATION PROCESS OF A BIOSENSOR ON A SEMICONDUCTOR SUBSTRATE - The disclosure relates to a fabrication process of a biosensor on a semiconductor wafer, comprising steps of: making a central photosensitive zone comprising at least one pixel-type biological analysis device comprising a photosensitive layer, and a first peripheral zone surrounding the central photosensitive zone, comprising electronic circuits. The first peripheral zone is covered by a hydrophilic coating, and the central photosensitive zone is covered with a hydrophobic coating. A barrier of a bio-compatible resin is formed on the second peripheral zone. | 06-16-2011 |
20110158853 | PIXEL-TYPE BIOLOGICAL ANALYSIS DEVICE, BIOSENSOR, AND FABRICATION PROCESSES THEREOF - The disclosure relates to a pixel-type biological analysis device comprising a photosensitive layer, a capture mixture for the capture of targeted proteins, the capture mixture being placed on an external surface of the photosensitive layer and comprising a protein probe grafted to a hydrogel, collection means for collecting photoelectrons in the photosensitive layer, and reading and treatment means of an electrical quantity supplied by the collection means, for the supply of a characteristic value of a luminous intensity detected by the photosensitive layer. | 06-30-2011 |
Thomas Frank Perley, Simpsonville, SC US
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20140050579 | SYSTEM AND METHOD FOR BRAKING A WIND TURBINE ROTOR AT AN OVERSPEED CONDITION - A system and method for braking a wind turbine includes monitoring rotation of the wind turbine generator rotor. A braking torque is applied to reduce the rotational speed of the rotor at a first setpoint rotational speed. The braking torque is proportionally increased as the rotational speed of the rotor increases beyond the first detected setpoint rotational speed up to a maximum braking torque. | 02-20-2014 |
Thomas Franklin Perley, Simpsonville, SC US
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20130193686 | SYSTEM AND METHODS FOR DETERMINING PITCH ANGLES FOR A WIND TURBINE DURING PEAK SHAVING - A method for determining pitch angles for at least one rotor blade of a wind turbine during peak shaving is disclosed. The method may generally include receiving a signal with a controller associated with a peak shaving parameter of the wind turbine and determining a target pitch angle for the at least one rotor blade based on a mathematical relationship between the target pitch angle and the peak shaving parameter, wherein the mathematical relationship is modeled as a non-linear function. | 08-01-2013 |
20140042745 | SYSTEM AND METHOD FOR CONTROLLING SPEED AND TORQUE OF A WIND TURBINE DURING POST-RATED WIND SPEED CONDITIONS - A method and system for controlling a wind turbine generator at wind speeds in excess of rated wind speed to detect wind speeds and, at rated wind speed, control generator torque and generator rotational speed to achieve a rated power for the wind turbine generator. As wind speed increases beyond the rated wind speed, one of generator torque or generator rotational speed is increased and the other of generator rotational speed or generator torque is proportionally decreased to maintain the generator power substantially constant at rated power. | 02-13-2014 |
20140086747 | ASYMMETRIC LOAD CONTROL FOR TORSION FATIGUE REDUCTION IN A WIND TURBINE TOWER - A method and system for reducing a torsional movement and/or a torsional loading of a tower of a wind turbine is disclosed includes generating a tower torsion signal with a detection system and providing the signal to an asymmetric load control assembly. The tower torsion signal may correspond to an actual torsional movement of the tower or a torsional loading of the tower. The asymmetric load control assembly is configured to mitigate an asymmetric load acting on the wind turbine using the tower torsion signal. | 03-27-2014 |
20140167416 | System and Method for Controlling Speed and Torque of a Wind Turbine During Post-Rated Wind Speed Conditions - A method and system for controlling a wind turbine generator detect wind speeds and, at a first defined wind speed, control generator torque and generator rotational speed to achieve a pre-defined power for the wind turbine generator at the first defined wind speed. As wind speed increases beyond the first defined wind speed, one of generator torque or generator rotational speed is increased and the other of generator rotational speed or generator torque is proportionally decreased to maintain the generator power substantially constant at the pre-defined power. | 06-19-2014 |
20140271181 | SYSTEM AND METHOD FOR REDUCING LOADS ACTING ON A WIND TURBINE IN RESPONSE TO TRANSIENT WIND CONDITIONS - A method for reducing loads acting on a wind turbine in response to transient wind conditions is disclosed. The method may generally include determining an actual value for a blade parameter of a rotor blade of the wind turbine using a first sensor associated with the rotor blade, monitoring a secondary operating parameter of the wind turbine using a second sensor, determining a predicted value for the blade parameter based on the secondary operating parameter, comparing the actual value to the predicted value and performing a corrective action to reduce the loads acting on the wind turbine if the actual value differs from the predicted value by at least a differential threshold. | 09-18-2014 |
20150056072 | SYSTEM AND METHOD FOR PREVENTING EXCESSIVE LOADING ON A WIND TURBINE - Systems and methods for preventing excessive loading on a wind turbine are disclosed. The method includes: measuring an actual wind parameter upwind from the wind turbine using one or more sensors; providing the measured wind parameter to a processor; providing a plurality of wind turbine operating data to the processor; utilizing the plurality of operating data to determine an estimated wind turbine condition at the wind turbine; generating a control wind profile based on the actual wind parameter and the estimated wind turbine condition; and, implementing a control action based on the control wind profile to prevent excessive loading from acting on the wind turbine. | 02-26-2015 |
20150086356 | SYSTEM AND METHOD FOR PREVENTING EXCESSIVE LOADING ON A WIND TURBINE - Systems and methods for preventing excessive loading on a wind turbine are disclosed. The method includes determining a current wind turbine parameter using at least one operating condition via a processor, the operating condition indicative of wind turbine operation; storing the current wind turbine parameter in a memory store over a predetermined time period; calculating a standard deviation of a plurality of the stored current wind turbine parameters; determining a future wind turbine parameter; calculating a maximum wind turbine parameter as a function of the standard deviation of the plurality of stored wind turbine parameters and the future wind turbine parameter; and, controlling the wind turbine based on a difference between the maximum wind turbine parameter and a parameter setpoint to prevent excessive loading from acting on the wind turbine. | 03-26-2015 |
Thomas Franklin Perley, Simponville, SC US
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20140203560 | WIND TURBINE AND METHOD FOR ADJUSTING ROTOR BLADE PITCH ANGLE IN WIND TURBINE - Wind turbines and methods for adjusting pitch angles of rotor blades in wind turbines are provided. A method includes monitoring an operational value of the wind turbine, and providing the operational value to a controller, the controller utilizing a proportional integral derivative control algorithm to adjust the pitch angle. The method further includes adjusting a gain factor for the proportional integral derivative control algorithm to a first gain value when the operational value is within a first operational region, and adjusting a gain factor for the proportional integral derivative control algorithm to a second gain value when the operational value is within a second operational region. The second gain value is different from the first gain value, and the second operational region is different from the first operational region. | 07-24-2014 |
Tim Edward Perley, Boulder, CO US
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20090222653 | COMPUTER SYSTEM COMPRISING A SECURE BOOT MECHANISM - A secure boot processing may be accomplished on the basis of a non-volatile memory that is an integral part of the CPU and which may not be modified once a pre-boot information may be programmed into the non-volatile memory. During a reset event or a power-on event, execution may be started from the internal non-volatile memory, which may also include public decryption keys for verifying a signature of a portion of a boot routine. The verification of the respective portion of the boot routine may be accomplished by using internal random access memories, thereby avoiding external access during verification of the boot routine. Hence, a high degree of tamper resistance may be obtained, for instance, with respect to BIOS modification by exchanging BIOS chips. | 09-03-2009 |