Comparison of Electromagnetic Performance of 10-MW Superconducting Generators With Different Topologies for Offshore Direct-Drive Wind Turbines (2017)
Journal Article
Guan, Y., Zhu, Z. Q., Azar, Z., Thomas, A. S., Vedreño-Santos, F., Li, G.-J., & Odavic, M. (2017). Comparison of Electromagnetic Performance of 10-MW Superconducting Generators With Different Topologies for Offshore Direct-Drive Wind Turbines. IEEE Transactions on Applied Superconductivity, 27(7), 1-11. https://doi.org/10.1109/tasc.2017.2732289

This paper compares the electromagnetic performance of 10MW superconducting (SC) generators with three different topologies, i.e., iron-cored stator and rotor (ISIRT), iron-cored stator and air-cored rotor (ISART), and air-cored stator and rotor (ASA... Read More about Comparison of Electromagnetic Performance of 10-MW Superconducting Generators With Different Topologies for Offshore Direct-Drive Wind Turbines.

Influence of pole number and stator outer diameter on volume, weight and cost of superconducting generator with iron-cored rotor topology for wind turbines. (2017)
Journal Article
Guan, Y., Zhu, Z. Q., Li, G.-J., Azar, Z., Thomas, A. S., Vedreño-Santos, F., & Odavic, M. (2017). Influence of pole number and stator outer diameter on volume, weight and cost of superconducting generator with iron-cored rotor topology for wind turbines. IEEE Transactions on Applied Superconductivity, 27(6), 1-9. https://doi.org/10.1109/TASC.2017.2716818

This paper investigates the influence of pole number and stator outer diameter on the performance of superconducting (SC) generators. The SC generator has an iron-cored rotor topology. Firstly, the generator structure is introduced and the optimizati... Read More about Influence of pole number and stator outer diameter on volume, weight and cost of superconducting generator with iron-cored rotor topology for wind turbines..

Comparison of Peak Armature and Field Winding Currents for Different Topologies of 10-MW Superconducting Generators Under Short-Circuit Conditions (2016)
Journal Article
Guan, Y., Vedreno-Santos, F., Li, G. J., Azar, Z., Thomas, A. S., Li, G.-J., Odavic, M., & Zhu, Z. Q. (2016). Comparison of Peak Armature and Field Winding Currents for Different Topologies of 10-MW Superconducting Generators Under Short-Circuit Conditions. IEEE Transactions on Applied Superconductivity, 26(8), 1-7. https://doi.org/10.1109/tasc.2016.2615077

This paper studies the peak armature and peak field winding currents for three different topologies of 10 MW partial High Temperature Superconducting Generators (HTSGs) under Short-Circuit Conditions (SCC) by simulation. The investigated partial HTSG... Read More about Comparison of Peak Armature and Field Winding Currents for Different Topologies of 10-MW Superconducting Generators Under Short-Circuit 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 Rotor and Stator Asymmetries in Wound-Rotor Induction Machines Under Nonstationary Operation Through the Instantaneous Frequency (2014)
Journal Article
Vedreno-Santos, F., Riera-Guasp, M., Henao, H., Pineda-Sanchez, M., & Puche-Panadero, R. (2014). Diagnosis of Rotor and Stator Asymmetries in Wound-Rotor Induction Machines Under Nonstationary Operation Through the Instantaneous Frequency. IEEE Transactions on Industrial Electronics, 61(9), 4947-4959. https://doi.org/10.1109/tie.2013.2288192

This paper proposes a methodology to improve the reliability of diagnosis of different types of faults in wound-rotor induction generators which work under variable load conditions, as in wind turbine applications; the method is based on the extracti... Read More about Diagnosis of Rotor and Stator Asymmetries in Wound-Rotor Induction Machines Under Nonstationary Operation Through the Instantaneous Frequency.

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.