Search Results - "Romeral, Luís"

A Back-emf Based Method to Detect Magnet Failures in PMSMs by Urresty, Julio-César, Riba, Jordi-Roger, Romeral, Luís

“…Demagnetization faults are troublesome because they have a profound impact on the overall performance of permanent magnet synchronous motors (PMSMs). This work…”
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Modeling of Surface-Mounted Permanent Magnet Synchronous Motors With Stator Winding Interturn Faults by Romeral, L, Urresty, J C, Riba Ruiz, Jordi-Roger, Garcia Espinosa, Antonio

“…This paper develops and analyzes a parametric model for simulating healthy and faulty surface-mounted permanent magnet synchronous motors. It allows studying…”
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Influence of the Stator Windings Configuration in the Currents and Zero-Sequence Voltage Harmonics in Permanent Magnet Synchronous Motors With Demagnetization Faults by Urresty, Julio-Cesar, Riba, Jordi-Roger, Romeral, Luis

“…Demagnetization faults in permanent magnet synchronous motors may generate specific fault harmonic frequencies in the stator currents and the zero-sequence…”
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Detection of interturn faults in PMSMs with different winding configurations by Saavedra, Harold, Urresty, Julio-César, Riba, Jordi-Roger, Romeral, Luís

“…•Interturn faults in PMSMs may lead to severe consequences.•By analyzing specific current and ZSVC harmonics these faults may be diagnosed.•The winding…”
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A Simple 2-D Finite-Element Geometry for Analyzing Surface-Mounted Synchronous Machines With Skewed Rotor Magnets by Urresty, Julio-César, Riba, Jordi-Roger, Romeral, Luís, Garcia, Antonio

“…We present a new 2-D FEM-based system for analyzing permanent-magnet surface-mounted synchronous machines with skewed rotor magnets. The system is based on…”
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Redesign process of a 765 kVRMS AC substation connector by means of 3D-FEM simulations by Hernandez-Guiteras, Joan, Riba, Jordi-Roger, Romeral, Luis

“…This paper shows the capabilities of applying the three-dimensional finite element method (3D-FEM) for designing complex-shaped substation connectors to…”
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Improved design of an extra-high-voltage expansion substation connector through magnetic field analysis by Hernández-Guiteras, Joan, Riba, Jordi-Roger, Romeral, Luís

“…•Extra high voltage substation connectors deliver large amounts of electric current.•A 400kV – 3000A substation connector with four aluminum wires is…”
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Rare-earth-free propulsion motors for electric vehicles: A technology review by Riba, Jordi-Roger, López-Torres, Carlos, Romeral, Luís, Garcia, Antoni

“…Several factors including fossil fuels scarcity, prices volatility, greenhouse gas emissions or current pollution levels in metropolitan areas are forcing the…”
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A computer experiment to simulate the dynamic behaviour of electric vehicles driven by switched reluctance motors by Riba, Jordi-Roger, Garcia, Antoni, Romeral, Luís

“…The study of the dynamic behaviour of electric vehicles is being incorporated in the syllabuses of an increasing number of graduate and undergraduate courses…”
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A Novel Active Gate Driver for Improving SiC MOSFET Switching Trajectory by Paredes Camacho, Alejandro, Sala, Vicent, Ghorbani, Hamidreza, Romeral Martinez, Jose Luis

“…The trend in power electronic applications is to reach higher power density and higher efficiency. Currently, the wide band-gap devices such as silicon carbide…”
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Detection of Demagnetization Faults in Surface-Mounted Permanent Magnet Synchronous Motors by Means of the Zero-Sequence Voltage Component by Urresty, Julio-César, Riba, J-R, Delgado, M., Romeral, L.

“…This paper develops and analyzes an online methodology to detect demagnetization faults in surface-mounted permanent magnet synchronous motors. The proposed…”
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Energy Crisis in Europe: The European Union’s Objectives and Countries’ Policy Trends—New Transition Paths? by Urbano, Eva M., Kampouropoulos, Konstantinos, Romeral, Luis

“…Amidst the ongoing European energy crisis, the EU has proposed a legislative package to enhance gas independence from Russia, diversify energy supplies, and…”
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Diagnosis of Interturn Faults in PMSMs Operating Under Nonstationary Conditions by Applying Order Tracking Filtering by Urresty, J., Riba, J., Romeral, L.

“…Interturn faults in permanent magnet synchronous machines may have very harmful effects if not early identified. This study deals with the detection of such…”
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Comparative Analysis of SVM Techniques for a Five-Phase VSI Based on SiC Devices by Acosta-Cambranis, Fernando, Zaragoza, Jordi, Romeral, Luis, Berbel, Néstor

“…Multiphase systems provides benefits compared to three-phase systems, such as improved torque per ampere, high power density, better fault tolerance, lower…”
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Multiobjective Optimization of Multi-Carrier Energy System Using a Combination of ANFIS and Genetic Algorithms by Kampouropoulos, Konstantinos, Andrade, Fabio, Sala, Enric, Espinosa, Antonio Garcia, Romeral, Luis

“…This paper presents a novel method for the energy optimization of multi-carrier energy systems. The presented method combines an adaptive neuro-fuzzy inference…”
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Laser Ultrasound Inspection Based on Wavelet Transform and Data Clustering for Defect Estimation in Metallic Samples by Selim, Hossam, Delgado Prieto, Miguel, Trull, José, Romeral, Luis, Cojocaru, Crina

“…Laser-generated ultrasound is a modern non-destructive testing technique. It has been investigated over recent years as an alternative to classical ultrasonic…”
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Flexible Smart Energy-Management Systems Using an Online Tendering Process Framework for Microgrids by Selseleh Jonban, Mansour, Romeral, Luis, Rakhshani, Elyas, Marzband, Mousa

“…Currently, modern power grids are evolving into complex cyber-physical systems integrated with distributed energy resources that can be controlled and…”
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Fault Detection in Induction Machines Using Power Spectral Density in Wavelet Decomposition by Cusido, J., Romeral, L., Ortega, J.A., Rosero, J.A., Garcia Espinosa, A.

“…Motor-current-signature analysis has been successfully used in induction machines for fault diagnosis. The method, however, does not always achieve good…”
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Fully Noncontact Hybrid NDT for 3D Defect Reconstruction Using SAFT Algorithm and 2D Apodization Window by Selim, Hossam, Trull, José, Delgado Prieto, Miguel, Picó, Rubén, Romeral, Luis, Cojocaru, Crina

“…Nondestructive testing of metallic objects that may contain embedded defects of different sizes is an important application in many industrial branches for…”
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Quantitative and qualitative risk-informed energy investment for industrial companies by Urbano, Eva M., Martinez-Viol, Victor, Kampouropoulos, Konstantinos, Romeral, Luis

“…In the ongoing energy transition, small and medium-sized industrial companies are making energy equipment investments due to the obsolescence of their current…”
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