Table 2 MUSIC estimation results with different search step
From: IBPSO-Based MUSIC Algorithm for Broken Rotor Bars Fault Detection of Induction Motors
Frequency parameter | True value | Estimation value with different search step | ||
|---|---|---|---|---|
∆f= 0.1 | ∆f= 0.01 | ∆f= 0.001 | ||
Fundamental frequency f1 (Hz) | 50.0000 | 50.0 | 50.00 | 50.000 |
Fault-related frequency (1 – 2s)f1 (Hz) | 49.5438 | 49.6 | 49.54 | 49.544 |
Fault-related frequency (1 + 2s)f1 (Hz) | 50.4562 | 50.5 | 50.46 | 50.456 |