Patent application number | Description | Published |
20080208429 | Systems and methods for steam turbine remote monitoring, diagnosis and benchmarking - Systems and methods for steam turbine remote monitoring, calculating corrected efficiency, monitoring performance degradation, diagnosing and benchmarking are disclosed with an example turbine system including a turbine, a data acquisition device coupled to the turbine, the data acquisition device for collecting turbine data that includes performance parameters of the turbine and a central monitoring system coupled to the data acquisition device, the central monitoring system for receiving the collected turbine data and processing the turbine data to determine turbine performance. | 08-28-2008 |
20100161245 | SYSTEM AND METHOD FOR ROTOR BLADE HEALTH MONITORING - A system for rotor blade health monitoring include time of arrival (TOA) sensors and a controller comprising a processor configured for obtaining TOA signals indicative of times of arrival of rotating rotor blades from the respective TOA sensors and for determining initial features from the TOA signals; and a feature level fuser configured for fusing the initial features received from the processor for use in evaluating health of the rotating rotor blades. | 06-24-2010 |
20110010108 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A system is presented. The system includes a data acquisition system that generates time of arrival (TOA) data corresponding to a plurality of blades in a device, a central processing subsystem that determines features of each of the plurality of blades utilizing the TOA data, and evaluates the health of each of the plurality of blades based upon the determined features. | 01-13-2011 |
20110293403 | BLADE MONITORING SYSTEM - In one embodiment, a blade monitoring system includes: at least one computing device configured to monitor a compressor during a load change by performing actions comprising: extracting a dynamic component of a blade time-of-arrival (TOA) deviation signal in response to the load change on the compressor; calculating, using the dynamic component, at least one of: a natural frequency of the GT compressor blade during the load change, an overshoot of the GT compressor blade during the load change, a rise time of the compressor blade during the load change, a damping factor of the compressor blade during the load change, or a settling time of the GT compressor blade after the load change; and determining whether the GT compressor blade is damaged based upon the at least one of: the natural frequency, the overshoot, the rise time, the damping factor, or the settling time. | 12-01-2011 |
20110320137 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A method for monitoring the health of one or more blades is presented. The method includes the steps of determining a delta TOA corresponding to each of the one or more blades based upon respective actual time of arrival (TOA) of the one or more blades, determining a normalized delta TOA corresponding to each of the one or more blades by removing effects of one or more operational data from the delta TOA, and determining a corrected delta TOA corresponding to each of the one or more blades by removing effects of reseating of the one or more blades from the normalized delta TOA. | 12-29-2011 |
20110320138 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A method for monitoring the health of a plurality of blades is presented. The method includes determining delta TOAs corresponding to the plurality of blades, determining a standard deviation utilizing the delta TOAs corresponding to the plurality of blades, determining a delta sigma | 12-29-2011 |
20120060510 | HOT GAS TEMPERATURE MEASUREMENT IN GAS TURBINE USING TUNABLE DIODE LASER - A combustion gas measurement apparatus mounted in a gas turbine including: a tunable laser generating a radiation beam passing through a combustion gas path; a controller tuning the laser to emit radiation having at least a first selected wavelength and a second selected wavelength which both correspond to temperature-dependent transitions of a combustion species of the gas, wherein the first selected wavelength and the second selected wavelength are not near absorption peaks of neighboring wavelengths; a detector sensing the radiation beam passing through the combustion gas and generating an absorption signal indicative of an absorption of the beam by the combustion gas at each of the first wavelength and the second wavelength, and a processor executing a program stored on a non-transitory storage medium determining a combustion gas temperature based on a ratio of the adoption signals for the first wavelength and the second wavelength. | 03-15-2012 |
20120278004 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A method for monitoring the health of one or more blades is presented. The method includes the steps of generating a signal representative of delta times of arrival corresponding to the rotating blade, generating a reconstructed signal by decomposing the signal representative of the delta times of arrival utilizing a multi-resolution analysis technique, wherein the reconstructed signal is representative of at least one of static deflection and dynamic deflection in the rotating blade. | 11-01-2012 |
20130082833 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A method for monitoring health of airfoils is disclosed. The method comprises generating at least one feature alarm for a blade by fusing a plurality of features corresponding to the blade utilizing a fuzzy inference method. The fuzzy inference method comprises generating a plurality of intermediate values by fusing one or more combinations of the plurality of features utilizing a fuzzy logic method, and fusing the plurality of intermediate values utilizing a second level fuzzy logic method, wherein the at least one feature alarm is representative of the health of the blade. | 04-04-2013 |
20140052410 | CREEP LIFE MANAGEMENT SYSTEM FOR A TURBINE ENGINE AND METHOD OF OPERATING THE SAME - A creep life management system includes at least one sensor apparatus coupled to a first component. The at least one sensor apparatus is configured with a unique identifier. The creep life management system also includes at least one reader unit coupled to a second component. The at least one reader unit is configured to transmit an interrogation request signal to the at least one sensor apparatus and receive a measurement response signal transmitted from the at least one sensor apparatus. The creep life management system further includes at least one processor programmed to determine a real-time creep profile of the first component as a function of the measurement response signal transmitted from the at least one sensor apparatus. | 02-20-2014 |
20140119889 | METHODS AND SYSTEMS FOR MONITORING HEALTH OF BLADES - A system is disclosed. The system includes a processing subsystem that determines preliminary voltages corresponding to a plurality of blades based upon blade passing signals (BPS), and generates a plurality of clearance values by normalizing the preliminary voltages for effects of one or more operational parameters, wherein the plurality of clearance values are representative of clearance of the plurality of blades. | 05-01-2014 |
20140144257 | Acoustic Methods For Sensor Communication - A system for monitoring equipment and transmitting data and/or signals from one or more satellite nodes to a base node for transmission to a monitor or controller for the equipment. The system may transmit high frequency acoustic signals from one or more satellite nodes embedded in the equipment through a structural component of the equipment to the base node, eliminating the need to hardwire the satellite nodes in harsh environments. | 05-29-2014 |
20140188430 | SYSTEM AND METHOD FOR MONITORING HEALTH OF AIRFOILS - A method is presented. The method includes the steps of generating rotation signals corresponding to a plurality of rotations of a rotor physically coupled to a plurality of blades, and determining peak voltages corresponding to the plurality of blades by applying time synchronous averaging technique to blade passing signals using the rotation signals, wherein the peak voltages are representative of clearances of the plurality of blades. | 07-03-2014 |