Harmonic Order Tracking Analysis: A Novel Method for Fault Diagnosis in Induction Machines

2015 ◽  
Vol 30 (3) ◽  
pp. 833-841 ◽  
Author(s):  
Angel Sapena-Bano ◽  
Manuel Pineda-Sanchez ◽  
Ruben Puche-Panadero ◽  
Juan Perez-Cruz ◽  
Jose Roger-Folch ◽  
...  
Keyword(s):  
Fault Diagnosis ◽  
Induction Machines ◽  
Harmonic Order ◽  
Order Tracking ◽  
Novel Method

scholarly journals The Harmonic Order Tracking Analysis Method for the Fault Diagnosis in Induction Motors Under Time-Varying Conditions

2017 ◽  
Vol 32 (1) ◽  
pp. 244-256 ◽  
Author(s):  
Angel Sapena-Bano ◽  
Jordi Burriel-Valencia ◽  
Manuel Pineda-Sanchez ◽  
Ruben Puche-Panadero ◽  
Martin Riera-Guasp
Keyword(s):  
Fault Diagnosis ◽  
Induction Motors ◽  
Time Varying ◽  
Harmonic Order ◽  
Analysis Method ◽  
Order Tracking

Harmonic order tracking analysis: A novel method for the diagnosis of induction generators

2014 ◽  
Author(s):  
A. Sapena-Bano ◽  
J. Martinez-Roman J. Perez-Cruz ◽  
M. Pineda-Sanchez ◽  
J. Roger-Folch ◽  
M. Riera-Guasp ◽  
...  
Keyword(s):  
Harmonic Order ◽  
Induction Generators ◽  
Order Tracking ◽  
Novel Method

Compound-Fault Diagnosis of Bearing Based on Order Tracking Wavelet Packet and Rough Sets

2011 ◽  
Vol 130-134 ◽  
pp. 1681-1685 ◽  
Author(s):  
Guang Tian ◽  
Hao Tian ◽  
Guang Sheng Liu ◽  
Jin Hui Zhao ◽  
Li Ping Luo
Keyword(s):  
Fault Diagnosis ◽  
Rough Sets ◽  
Wavelet Packet ◽  
Decision Rules ◽  
Vibration Signals ◽  
Rough Sets Theory ◽  
Equal Angle ◽  
Order Tracking ◽  
Start Up ◽  
Sets Theory

The diagnosis of compound-fault is always a difficult point, and there is not an effective method in equipment diagnosis field, then a new method of compound-fault diagnosis was presented. The vibration signals at start-up in the gearbox are non-stationary signals, and traditional ways of diagnosis have low precision. Order tracking and wavelet packet and rough sets theory are introduced in the compound-fault diagnosis of bearing. First, the vibration signals at start-up were resampled using computer order tracking arithmetic and equal angle distributed vibration signals were obtained, and wavelet packet has been used for equal angle distributed vibration signals decomposition and reconstruction. Then, energy distribution of every frequency band can be calculated according to normalization process. A new feature vector can be obtained, then clear and concise decision rules can be obtained by rough sets theory. Finally, the result of compound-fault example proves that the proposed method has high validity and more amplitude appliance foreground.

scholarly journals Handling Fault Diagnosis Problem of Linear-Analogue Circuits with Voltage Phasor Measurement

2014 ◽  
Vol 2014 ◽  
pp. 1-13
Author(s):  
Xin Gao ◽  
HouJun Wang ◽  
Zhen Liu
Keyword(s):  
Fault Diagnosis ◽  
Maximum Error ◽  
Sensitive Test ◽  
Error Evaluation ◽  
Voltage Measurement ◽  
Phase Information ◽  
Analogue Circuit ◽  
Phasor Measurement ◽  
Analogue Circuits ◽  
Novel Method

This paper proposes a novel method to estimate the influence of hard-fault in linear-analogue circuit system based on the measurement of voltage phasor with assistant branch introduced. Furthermore, a new fault diagnosis strategy based on the voltage phasor modeling is established, and the tolerance influence on the corresponding voltage measurement is also discussed. The actual analogue circuit test shows us that the proposed method is effective and reliable to locate the accurate fault signature in voltage measurement for the fault diagnosis. As a matter of fact, it includes both the amplitude and phase information in a complex value form when the linear-analogue circuit is under the AC test. Besides, it can be also applied to ambiguous groups and the sensitive test-frequencies determination in the process of fault diagnosis,while the effectiveness of multifrequencies test has also been testified through test-frequencies sweeping investigation and the maximum error evaluation of fault component value in the second circuit example.

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