method and device for detecting a temperature sensor failure in a turbine system, and system for monitoring a plurality of turbine systems

摘要

The present invention relates to a method for detecting a temperature sensor failure in a turbine system, the method comprising (a) obtaining (102) individual measurement values of each temperature sensor in a temperature sensor group, (b) calculate (104) a characteristic value for each temperature sensor in the group based on the measurement values for the corresponding temperature sensor, (c) select (106) a first characteristic value from the calculated characteristic values, ( d) determining (108) a first maximum value as the maximum of the characteristic values except for the first characteristic value, and (e) determining (110) that the temperature sensor corresponding to the first characteristic value is defective if the first characteristic value is larger. that the first maximum value multiplied by a predetermined factor. further, a corresponding device, system, computer program and computer program product are described.