Research Article
Simultaneous-Fault Diagnosis of Gas Turbine Generator Systems Using a Pairwise-Coupled Probabilistic Classifier
Table 6
Evaluation of different combinations of techniques using the best model parameters obtained.
| Classifier | Feature extraction | Strategy | Experiment no. | Decision threshold | Accuracies for test cases () | Single-faults | Simultaneous-faults | Overall faults |
| PNN | None | One-versus-all | 1 | = 0.76 | 0.8364 | 0.7156 | 0.7576 | WPT + TDSF + KPCA | One-versus-all | 2 | = 0.76 | 0.8646 | 0.7246 | 0.8121 |
| RVM | None | One-versus-all | 3 | = 0.67 | 0.8299 | 0.7464 | 0.8125 | WPT + TDSF + KPCA | One-versus-all | 4 | = 0.67 | 0.8960 | 0.7964 | 0.8536 |
| PCPNN | None | Pairwise coupling | 5 | = 0.76 | 0.8923 | 0.7364 | 0.7824 | WPT + TDSF + KPCA | Pairwise coupling | 6 | = 0.76 | 0.9198 | 0.7526 | 0.8661 |
| PCRVM | None | Pairwise coupling | 7 | = 0.67 | 0.8795 | 0.7843 | 0.8497 | WPT + TDSF + KPCA | Pairwise coupling | 8 | = 0.67 | 0.9336 | 0.8364 | 0.9129 |
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