2009
DOI: 10.1109/tec.2008.2003207
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Improved Resolution of the MCSA Method Via Hilbert Transform, Enabling the Diagnosis of Rotor Asymmetries at Very Low Slip

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Cited by 261 publications
(176 citation statements)
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“…In most industrial applications, the AC motors are subject to frequent start-stop cycles resulting in wear and cracking of the electric machine elements [2], which could produce rotor, stator, and bearing damage of the induction machine [2][3][4].…”
Section: Introductionmentioning
confidence: 99%
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“…In most industrial applications, the AC motors are subject to frequent start-stop cycles resulting in wear and cracking of the electric machine elements [2], which could produce rotor, stator, and bearing damage of the induction machine [2][3][4].…”
Section: Introductionmentioning
confidence: 99%
“…The diagnosis and fault detection methods used in induction motors are based on the effective analysis, in the frequency domain, of the induction machine electrical parameters [2,14,15]. This analysis is usually performed by Fast Fourier Transform (FFT) [10,14] and Hilbert Transform [2,16].…”
Section: Introductionmentioning
confidence: 99%
“…Typical examples include broken rotor bars [18][19][20][21][22], gearbox faults [23] and bearing faults [7], [14], [17], [24]. In order to perform currents demodulation, several authors have employed classical demodulation techniques such as the synchronous demodulator [22], [25][26], the Hilbert transform [18][19][20], [22], [27], timefrequency distributions [14], [17], [28][29][30] or adaptive tracking of sine waves [31]. Joint IA-IF estimation based on the Concordia transform is investigated in [7], [21], [32].…”
Section: Introductionmentioning
confidence: 99%
“…El inconveniente de utilizar la potencia de fase instantánea es que para calcularla no es suficiente con la medida de una sola corriente. En [13] se propone como alternativa analizar el espectro de la envolvente de la corriente estatórica, la cual se calcula fácilmente aplicando la transformada de Hilbert a la simple medida de la corriente. Se demuestra que la envolvente de la corriente no tiene una componente como la FC, siendo su principal componente una componente de continua, la cual puede ser filtrada fácilmente; por otra parte, la rotura de barra introduce armónicos de frecuencia 2 FC sf , al igual que ocurre con la potencia instantánea total o el par estimado, con la ventaja de que tan solo hay que medir una corriente.…”
Section: 23-soluciones Y Otras Técnicas De Diagnóstico En Régimenunclassified
“…Fig. 2.7 (reproducciones de las figuras 3 (izquierda) y 4 (derecha) de [13]), se observan los espectros de la corriente estatórica (izquierda) y de la envolvente de dicha corriente tras eliminar su componente continua (derecha). Concretamente se analizan las corrientes y sus envolventes (extrayendo la componente de continua) de un motor de inducción en estado sano descargado (a) y con una barra rota descargado (b), en baja carga (c), en media carga (d) y en plena carga (e).…”
Section: 23-soluciones Y Otras Técnicas De Diagnóstico En Régimenunclassified