Research Article
Study on Intelligent Diagnosis of Rotor Fault Causes with the PSO-XGBoost Algorithm
Table 3
Running parameters of a high-pressure steam turbine rotor.
| Index | Parameters | Unit | Symbol |
| 1 | Steam temperature of high-pressure cylinder shaft seal | °C | HT1 | 2 | Temperature difference between upper and lower cylinders of a high-pressure cylinder | °C | HT2 | 3 | Expansion value of a high-pressure cylinder | mm | HE1 | 4 | The change rate of unit load | Mw/min | HC1 | 5 | High-pressure cylinder temperature | °C | HT3 | 6 | Lubricating oil temperature of high-pressure rotor | °C | HT4 | 7 | Fundamental frequency amplitude of No.1 bearing shaft vibration in X direction of a high-pressure rotor | mm | X1 | 8 | Fundamental frequency amplitude of No.1 bearing shaft vibration in Y direction of a high-pressure rotor | mm | Y1 | 9 | Fundamental frequency amplitude of No.1 bearing pedestal vibration in X direction of a high-pressure rotor | mm | X2 | 10 | Fundamental frequency amplitude of No.1 bearing pedestal vibration in Y direction of a high-pressure rotor | mm | Y2 |
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