SMART RADIATION THERMOMETRY SYSTEM FOR REAL TIME GAS TURBINE CONTROL AND PROGNOSIS

摘要

A smart radiation thermometry system including a turbine component isprovided. Thesmart radiation thermometry system includes an optical imaging sub-systemconfiguredto receive a continuous broad wavelength band radiation signal emitted by theturbinecomponent. The thermometry system also includes a wavelength splitting sub-system inoptical communication with the optical transmission sub-system, wherein thewavelengthsplitting sub-system receives the continuous broad wavelength band radiationsignal, andsplits the radiation signal into multiple sub-wavelength band signals. Thethermometrysystem further includes at least one detector array in optical communicationwith thewavelength-splitting sub-system, wherein the at least one detector arrayreceives themultiple sub-wavelength band signals, and outputs respective analog voltagesignals foreach of the signals. The thermometry system further includes at least one high-speedmulti-channel analog-to-digital converter (ADC) electrically coupled to the atleast onedetector array, wherein the ADC digitizes respective analog voltage signalsand outputsdigital voltage signals. The thermometry system also includes at least onesmart real timeprocessing sub-system electrically coupled to the at least one detector arrayvia the atleast one high-speed multi-channel ADC. The at least one smart real timeprocessingsub-system calculates temperature and emissivity of the turbine componentbased upon acomputed radiance temperature, reflection correction and multi-wavelengthalgorithm.The smart real time processing sub-system also transmits data indicative ofthetemperature, emissivity and other plurality of parameters within a pre-determined timeperiod to a communication unit. The smart real time processing sub-system alsooutputsemergency alarm signals and controls either directly or via a controller oneor moreactuators coupled to the gas turbine based upon the data to ensure optimumoperation ofthe gas turbine within safe operating limits.