Simultaneous Fault Diagnostics for Three-Shaft Industrial Gas TurbineShow others and affiliations
2023 (English)In: Machines, E-ISSN 2075-1702, Vol. 11, no 8, article id 832Article in journal (Refereed) Published
Abstract [en]
The study focused on the development of -gas turbine full- and part-load operation diagnostics. The gas turbine performance model was developed using commercial software and validated using the engine manufacturer data. Upon the validation, fouling, erosion, and variable inlet guide vane drift were simulated to generate faulty data for the diagnostics development. Because the data from the model was noise-free, sensor noise was added to each of the diagnostic set parameters to reflect the actual scenario of the field operation. The data was normalized. In total, 13 single, and 61 double, classes, including 1 clean class, were prepared and used as input. The number of observations for single faults diagnostics were 1092, which was 84 for each class, and 20,496 for double faults diagnostics, which was 336 for each class. Twenty-eight machine learning techniques were investigated to select the one which outperformed the others, and further investigations were conducted with it. The diagnostics results show that the neural network group exhibited better diagnostic accuracy at both full- and part-load operations. The test results and its comparison with literature results demonstrated that the proposed method has a satisfactory and reliable accuracy in diagnosing the considered fault scenarios. The results are discussed, following the plots.
Place, publisher, year, edition, pages
Multidisciplinary Digital Publishing Institute (MDPI) , 2023. Vol. 11, no 8, article id 832
Keywords [en]
diagnostics, gas turbine, machine learning, simultaneous faults, single faults
National Category
Energy Engineering
Identifiers
URN: urn:nbn:se:mdh:diva-64170DOI: 10.3390/machines11080832ISI: 001056926800001Scopus ID: 2-s2.0-85169141671OAI: oai:DiVA.org:mdh-64170DiVA, id: diva2:1794866
2023-09-062023-09-062023-09-20Bibliographically approved