Research Article

Composite Fault Diagnosis for Rotating Machinery of Large Units Based on Evidence Theory and Multi-Information Fusion

Table 2

Main parts of the experimental unit.

Device nameModelParameters

Inverter motorYP-50-112Triangular junction circuit: rated voltage, current, and power are 380 V, 24.8 A, and 11 kW
Multistage centrifugal fanC8-2000Rated power: 11 kW, maximum speed: 2970 r/min, blowing rate: 8 m³/min
Torque sensorCYT-302Rated torque: 100 Nm, speed range: 0∼3000 r/min, temperature coefficient: −0.027%/°C, precision: ±0.2% FS
Data collectorEMT390Acceleration: 0.1∼199.9 m/s2, acquisition frequency: 10 Hz∼10 kHz, number of groups: 1∼100, sampling points: 512, 1024, and 2048