Search Results - "Romeral, L"

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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Detection of Demagnetization Faults in Permanent-Magnet Synchronous Motors Under Nonstationary Conditions by Ruiz, J.-R.R., Rosero, J.A., Espinosa, A.G., Romeral, L.

“…This paper presents the results of our study of the permanent-magnet synchronous motor (PMSM) running under demagnetization. We examined the effect of…”
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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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Short-Circuit Detection by Means of Empirical Mode Decomposition and Wigner-Ville Distribution for PMSM Running Under Dynamic Condition by Rosero, J.A., Romeral, L., Ortega, J.A., Rosero, E.

“…This paper presents and analyzes a method for short-circuit fault detection in a permanent-magnet synchronous motor (PMSM). The study includes steady-state…”
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Motor Fault Detection Using a Rogowski Sensor Without an Integrator by Poncelas, O., Rosero, J.A., Cusido, J., Ortega, J.A., Romeral, L.

“…This paper presents a new approach for the current acquisition system in motor fault detection applications. This paper includes the study, design, and…”
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Novel direct torque control (DTC) scheme with fuzzy adaptive torque-ripple reduction by Romeral, L., Arias, A., Aldabas, E., Jayne, M.G.

“…Investigations were carried out on a novel direct torque control system, which not only reduces the undesirable torque ripple by up to 98% by means of…”
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Wavelet and PDD as fault detection techniques by Cusidó, J., Romeral, L., Ortega, J.A., Garcia, A., Riba, J.R.

“…Motor current signature analysis has been successfully used for fault diagnosis in induction machines. However, this method does not always achieve good…”
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Multi-objective Optimal Design of a Five-Phase Fault-Tolerant Axial Flux PM Motor by SAAVEDRA, H., RIBA, J.-R., ROMERAL, L.

“…Electric motors used for traction purposes in electric vehicles (EVs) must meet several requirements, including high efficiency, high power density and…”
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The relationship of myocardial contraction and electrical excitation—the correlation between scintigraphic phase image analysis and electrophysiologic mapping by del Romeral, L. Munoz, Stillson, C., Lesh, M., Dae, M., Botvinick, Elias

“…Background Phase imaging derived from equilibrium radionuclide angiography presents the ventricular contraction sequence. It has been widely but only…”
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Open-Phase Faulty Five-Phase Permanent Magnet Assisted Synchronous Reluctance Motor Model With Stepped Skew by Michalski, T. D., Romeral, J. L., Mino-Aguilar, G.

“…Commonly, healthy five-phase permanent magnet assisted synchronous reluctance machines (PMaSynRMs) are modeled in harmonic fixed rotating ( dq1dq ) reference…”
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Novel Fuzzy Adaptive Sensorless Induction Motor Drive by Lopez, J.Ci, Romeral, L., Arias, A., Aldabas, E.

“…Investigations were carried out on a novel sensorless drive for induction motors, based on the combination of an open-loop (OL) estimator and a steady-state…”
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Thermal Response Estimation in Substation Connectors Using Data-Driven Models by GIACOMETTO, F., CAPELLI, F., ROMERAL, L., RIBA, J.-R., SALA, E.

“…Temperature rise simulations are one of the key steps in the design of high-voltage substation connectors. These simulations help minimizing the number of…”
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Closed-Loop Controller for Eliminating the Contact Bounce in DC Core Contactors by Espinosa, A G, Riba, J R, Cusidó, J, Ortega, J A, Romeral, L

“…The undesirable phenomenon of the contact bounce causes severe erosion of the contacts and, as a consequence, their electrical life and reliability are greatly…”
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Magnetic skew interface in five-phase ferrite assisted synchronous reluctance motor model by Michalski, T.D., Romeral, J.L., Mino-Aguilar, G.

“…•An inverted flux map model for five-phase PMaSynRM is described.•Flux maps identified by Finite Element Analysis cover cross saturations and…”
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Method to reduce THD and improve efficiency in SiC power converter by Fernandez, E., Sala, V., Paredes, A, Romeral, L

“…This paper presents a method to reduce total harmonic distortion (THD) and improve efficiency of a topology of power converter using SiC devices. The method…”
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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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Design of Shading Coils for Minimizing the Contact Bouncing of AC Contactors by Riba, J.R., Espinosa, A.G., Cusido, J., Ortega, J.A., Romeral, L.

“…For many decades, electromechanical contactors have been widely used in the industry, and over 80% are equipped with AC powered coils. Electromechanical…”
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Fault detection by means of wavelet transform in a PMSMW under demagnetization by Rosero, J., Romeral, L., Cusido, J., Ortega, J.A.

“…This paper presents a study of a permanent magnet synchronous machine (PMSM) running under demagnetization. The demagnetization fault is analyzed through…”
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The diagnosis of pericardial effusion and cardiac tamponade by 12-lead ECG. A technology assessment by Eisenberg, M J, de Romeral, L M, Heidenreich, P A, Schiller, N B, Evans, Jr, G T

“…This study was designed to determine the diagnostic value of 12-lead ECG for pericardial effusion and cardiac tamponade. Cross-sectional study. University…”
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Evaluation of Multiclass Novelty Detection Algorithms for Electric Machine Monitoring by Ramirez Chavez, M., Ruiz Soto, L., Arellano Espitia, F., Saucedo, J. J., Delgado Prieto, M., Romeral, L.

“…The detection of unexpected events represents, currently, one of the most critical challenges dealing with electromechanical system diagnosis. In this regard,…”
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