All Outputs (12)

Using Frequency B-Splines for an accurate and faster calculation of adaptive transforms for electric machines diagnosis (2024)
Presentation / Conference Contribution
Pons-Llinares, J., Quijano-López, A., Bonet-Jara, J., & Vedreño-Santos, F. (2024, May). Using Frequency B-Splines for an accurate and faster calculation of adaptive transforms for electric machines diagnosis. Presented at Electrimacs 2024, Castellón de la Plana, Spain

Early detection of faults in electric motors is crucial to prevent unplanned downtime and expensive repairs. Transient analysis through time-frequency transforms reveals important information on the motor condition. Computational time of these transf... Read More about Using Frequency B-Splines for an accurate and faster calculation of adaptive transforms for electric machines diagnosis.

Very Accurate Time-Frequency Representation of Induction Motors Harmonics for Fault Diagnosis Under Arbitrary Load Variations (2022)
Presentation / Conference Contribution
Bonet-Jara, J., Fernandez-Cavero, V., Vedreno Santos, F., & Pons-Llinares, J. (2022, September). Very Accurate Time-Frequency Representation of Induction Motors Harmonics for Fault Diagnosis Under Arbitrary Load Variations. Presented at 2022 International Conference on Electrical Machines (ICEM), Valencia, Spain

Induction motors work under steady state in many applications. Nevertheless, in some cases (e.g., wood cutting machine or pulp mixer in paper industries), the load continuously varies. In these cases, time-frequency transforms are needed to detect th... Read More about Very Accurate Time-Frequency Representation of Induction Motors Harmonics for Fault Diagnosis Under Arbitrary Load Variations.

Performance of Superconducting Generators with Different Topologies under Fault Conditions (2019)
Presentation / Conference Contribution
Guan, Y., Vedreno Santos, F., Azar, Z., Thomas, A., Li, G., Odavic, M., & Zhu, Z. (2018, April). Performance of Superconducting Generators with Different Topologies under Fault Conditions. Presented at The 9th International Conference on Power Electronics, Machines and Drives (PEMD 2018), Liverpool, UK

This paper compares the short-circuit performance of superconducting (SC) generators with three different topologies, i.e., iron-cored stator and rotor, iron-cored stator and air-cored rotor, and air-cored stator and rotor. The analysis is based on t... Read More about Performance of Superconducting Generators with Different Topologies under Fault Conditions.

Transient diagnosis of induction generators via atom-based time-frequency transforms (2014)
Presentation / Conference Contribution
Pons-Llinares, J., Riera-Guasp, M., Antonino-Daviu, J. A., & Vedreno-Santos, F. (2014, September). Transient diagnosis of induction generators via atom-based time-frequency transforms. Presented at 2014 International Conference on Electrical Machines (ICEM)

Induction generators used in windmills usually work in non-stationary conditions, due to the varying speed of the wind. Therefore, in order to perform its diagnosis through the stator current analysis, adequate time-frequency transforms must be used.... Read More about Transient diagnosis of induction generators via atom-based time-frequency transforms.

Diagnosis of induction machines under non-stationary conditions by means of the spectral filter (2013)
Presentation / Conference Contribution
Vedreno-Santos, F., Riera-Guasp, M., & Pineda-Senchez, M. (2013, August). Diagnosis of induction machines under non-stationary conditions by means of the spectral filter. Presented at 2013 9th IEEE International Symposium on Diagnostics for Electric Machines, Power Electronics and Drives (SDEMPED)

This paper introduces a new way to extract the
fault components of a signal by means of a new proposed filter
based on the Sampling Theorem and the properties of Discrete
Fourier Transform. The proposed method is able to extract
fault components... Read More about Diagnosis of induction machines under non-stationary conditions by means of the spectral filter.

Diagnosis of induction machines under non-stationary conditions: Concepts and tools (2013)
Presentation / Conference Contribution
Riera-Guasp, M., Pons-Llinares, J., Climente-Alarcon, V., Vedreno-Santos, F., Pineda-Sanchez, M., Antonino-Daviu, J., Puche-Panadero, R., Perez-Cruz, J., & Roger-Folch, J. (2013, March). Diagnosis of induction machines under non-stationary conditions: Concepts and tools. Presented at 2013 IEEE Workshop on Electrical Machines Design, Control and Diagnosis (WEMDCD)

This paper is focused on fault diagnostic
methodologies suited for induction machines which are
subjected to fluctuating loads and speeds during their normal
duty cycle. In these cases, the load and speed fluctuate
continuously, near their rated... Read More about Diagnosis of induction machines under non-stationary conditions: Concepts and tools.

Diagnosis of eccentricity in induction machines working under fluctuating load conditions, through the instantaneous frequency (2012)
Presentation / Conference Contribution
Vedreno-Santos, F., Riera-Guasp, M., Henao, H., Pineda-Sanchez, M., & Antonino-Daviu, J. A. (2012, October). Diagnosis of eccentricity in induction machines working under fluctuating load conditions, through the instantaneous frequency. Presented at IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society

This paper introduces a methodology for diagnosing
mixed eccentricity fault in squirrel cage induction machines
which work under variable load conditions in generator or motor
mode; the method is based on the extraction of the instantaneous
frequ... Read More about Diagnosis of eccentricity in induction machines working under fluctuating load conditions, through the instantaneous frequency.

Electric machines diagnosis techniques via transient current analysis (2012)
Presentation / Conference Contribution
Pons-Llinares, J., Climente-Alarcon, V., Vedreno-Santos, F., Antonino-Daviu, J., & Riera-Guasp, M. (2012, October). Electric machines diagnosis techniques via transient current analysis. Presented at IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society

Induction motor condition monitoring has primarily
relied on the analysis of currents during steady-state operation
through the Fast Fourier Transform (FFT). Nonetheless, this
conventional approach has many constraints, most of them
related to th... Read More about Electric machines diagnosis techniques via transient current analysis.

Vibration transient detection of broken bars by PSH sidebands (2012)
Presentation / Conference Contribution
Climente-Alarcon, V., Antonino-Daviu, J., Vedreno-Santos, F., & Puche-Panadero, R. (2012, September). Vibration transient detection of broken bars by PSH sidebands. Presented at 2012 XXth International Conference on Electrical Machines

Abstract:
In recent years, the study of transients of induction motors for diagnosis purposes has gained strength in order to overcome some inherent problems of the classical diagnosis of such machines, which uses Fourier analysis of steady-state qu... Read More about Vibration transient detection of broken bars by PSH sidebands.

Diagnosis of faults in induction generators under fluctuating load conditions through the instantaneous frequency of the fault components (2012)
Presentation / Conference Contribution
Vedreno-Santos, F., Riera-Guasp, M., Henao, H., & Pineda-Sanchez, M. (2012, September). Diagnosis of faults in induction generators under fluctuating load conditions through the instantaneous frequency of the fault components. Presented at 2012 XXth International Conference on Electrical Machines

This paper introduces a methodology for
improving the reliability of diagnosis of different types of
faults in wound rotor induction generators which works under
variable load conditions; the method is based on the extraction
of the Instantaneous... Read More about Diagnosis of faults in induction generators under fluctuating load conditions through the instantaneous frequency of the fault components.

Diagnosis of rotor asymmetries in wound rotor induction generators operating under varying load conditions via the Wigner-Ville Distribution (2012)
Presentation / Conference Contribution
Climente-Alarcon, V., Riera-Guasp, M., Antonino-Daviu, J., Roger-Folch, J., & Vedreno-Santos, F. (2012, June). Diagnosis of rotor asymmetries in wound rotor induction generators operating under varying load conditions via the Wigner-Ville Distribution. Presented at International Symposium on Power Electronics Power Electronics, Electrical Drives, Automation and Motion

Fault diagnosis in wind generators is drawing
increasing attention among the scientific community and
maintenance companies, due to the crucial contribution of
this renewable power source in the electric power
generation map. These machines usual... Read More about Diagnosis of rotor asymmetries in wound rotor induction generators operating under varying load conditions via the Wigner-Ville Distribution.

Evaluation of the amplitudes of high-order fault related components in double bar faults (2011)
Presentation / Conference Contribution
Riera-Guasp, M., Pons-Llinares, J., Vedreno-Santos, F., Antonino-Daviu, J., & Fernandez Cabanas, M. (2011, September). Evaluation of the amplitudes of high-order fault related components in double bar faults. Presented at 8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives

This paper addresses the problem of diagnosing
cage motors with double bar breakages involving nonconsecutive
rotor bars. As it is stated in previous works, the
conventional diagnosis approaches fail when diagnosing this
fault for certain relativ... Read More about Evaluation of the amplitudes of high-order fault related components in double bar faults.