Shannon Entropy and -Means Method for Automatic Diagnosis of Broken Rotor Bars in Induction Motors Using Vibration Signals

Table 6

Results and characteristics of previous works and of the proposed work.

Work	Applied methodology	Analyzed state	⁢Effectiveness (%)
			HLT	HBRB	1BRB	MBRB
Matić et al. [37]	() Feature selection through Hilbert transform.; () Fault diagnosis classification through support vector machine.	Steady	100	—	100	—
Da Silva et al. [38]	() Feature selection through time-stepping finite-element simulations.; () Fault diagnosis classification through a Bayesian classifier.	Steady	100	—	100	100^3,5
Georgoulas et al. [39]	() Extraction features by means of complex empirical mode decomposition.; () Fault diagnosis classification through hidden Markov models.	Transient	100	—	100	100^2
Keskes et al. [40]	() Stationary Wavelet Packet transform for statistical feature extraction.; () Fault diagnosis classification through improved support vector machine.	Steady	100	—	99	99^2
Rangel-Magdaleno et al. [41]	() Mathematical morphology.; () Spectral analysis for identification of frequency components related to the fault using FFT.; () Amplitude analysis from estimated spectrum for statistical feature extraction.; () Fault diagnosis classification through a decision tree.	Steady	95	—	95	95^2
Menacer et al. [42]	() Spectral analysis using discrete wavelet transform and Hilbert transform to obtain the envelope of the signal.; () Fault diagnosis classification through measured features (Eigenvector changes).	Transient	100	—	100	100^2
Valles-Novo et al. [5]	() Signal decomposition by means of empirical mode decomposition method.; () Standard deviation of zero crossings and the time between successive zero crossings of the decompositions for fault diagnosis classification.	Transient; Steady	98.2; 98.2	99.7; 98.2	98.2; 98.5	—; —
Proposal	() Shannon entropy for statistical feature extraction.; () Fault diagnosis classification through -means method.	Transient; Steady	100; 100	95; 100	100; 100	100^2; 100^2

HLT: healthy condition; HBRB: half broken rotor bar; 1BRB: one broken rotor bar; MBRB: multiple broken rotor bars, where 2 means two broken bars, 3 means three broken bars, and 5 means five broken bars.