From: IBPSO-Based MUSIC Algorithm for Broken Rotor Bars Fault Detection of Induction Motors
Frequency parameter | True value | Statistical indices | ||
---|---|---|---|---|
Average estimation value | Average estimation error | Maximum estimation error | ||
Fundamental frequency f1 (Hz) | 50.0000 | 50.0000 | 4.7 × 10−7 | 4.8 × 10−5 |
Fault-related frequency (1 – 2s)f1 (Hz) | 49.5438 | 49.5438 | 1.1 × 10−5 | 7.8 × 10−4 |
Fault-related frequency (1 + 2s)f1 (Hz) | 50.4562 | 50.4562 | 6.9 × 10−6 | 8.4 × 10−4 |