METHOD FOR ANALYZING THE OPERATION OF A GAS TURBINE
The invention relates to a method for analyzing the operation of a gas turbine (1), wherein one or more neural networks based on the normal operation of the gas turbine are learned. At least one dynamic pressure signal (V5) is read by at least one pressure sensor (8) in or on the compressor (2) of the gas turbine (1), and one or more operating parameters (V1, V2, V3, V4) of the gas turbine (1) are read by one or more further sensors (4, 5, 6, 7) in normal operation of the gas turbine (1), and/or a dynamic pressure signal (V5) and one or more operating parameters (V1, V2, V3, V4) of the gas turbine (1) are read that were measured during normal operation of the gas turbine (1). The dynamic pressure signal (V5) is subjected to a frequency analysis, whereby one or more parameters of the frequency spectrum of the pressure signal (V5) are determined. Based on the measured operating parameters (V1, V2, V3, V4) and the parameters of the frequency spectrum of the pressure signal (V5), one or more neural networks are learned, comprising the measured operating parameters (V1, V2, V3, V4) and the parameters of the frequency spectrum of the pressure signal (V5) as input parameters, and having as an output parameter at least one diagnostic characteristic value representing a probability dimension for the presence of normal operation of the gas turbine (1) as a function of the input parameters.