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Table 4 Estimation error comparison using different optimization algorithms

From: Broken Rotor Bar Fault Detection of Induction Motors Using a Joint Algorithm of Trust Region and Modified Bare-bones Particle Swarm Optimization

Parameter BBPSO TR-MBPSO
Mean error Max error Mean error Max error
Amplitude A1 (A) 7.284 × 10−2 2.385 × 10−1 2.826 × 10−4 7.915 × 10−4
Frequency f1 (Hz) 7.353 × 10−3 2.303 × 10−2 2.097 × 10−5 5.891 × 10−4
Phase φ1 (rad) 2.427 × 10−2 7.638 × 10−2 6.765 × 10−5 1.894 × 10−3
Amplitude A2 (A) 6.675 × 10−2 1.996 × 10−1 2.962 × 10−4 8.240 × 10−3
Frequency 2sf1 (Hz) 9.642 × 10−2 1.987 × 10−1 3.243 × 10−4 9.123 × 10−3
Phase φ2 (rad) 5.703 × 10−1 1.537 2.857 × 10−3 8.045 × 10−2
Amplitude A3 (A) 3.514 × 10−2 9.422 × 10−2 7.625 × 10−6 2.123 × 10−4
Phase φ3 (rad) 7.247 × 10−1 1.890 2.238 × 10−7 3.356 × 10−6