Exploració per autor "Romeral Martínez, José Luis"
Ara es mostren els items 162-181 de 201
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Quantitative and qualitative risk-informed energy investment for industrial companies
Urbano González, Eva María; Martínez Viol, Víctor; Kampouropoulos, Konstantinos; Romeral Martínez, José Luis (Elsevier, 2023-12)
Article
Accés obertIn the ongoing energy transition, small and medium-sized industrial companies are making energy equipment investments due to the obsolescence of their current equipment as well as social, political and market pressures. ... -
Rare-earth-free propulsion motors for electric vehicles: a technology review
Riba Ruiz, Jordi-Roger; López Torres, Carlos; Romeral Martínez, José Luis; García Espinosa, Antonio (2016-05)
Article
Accés obertSeveral factors including fossil fuels scarcity, prices volatility, greenhouse gas emissions or current pollution levels in metropolitan areas are forcing the development of greener transportation systems based on more ... -
Redesign process of a 765 kV AC substation connector by means of 3D-FEM simulations
Hernández Guiteras, Joan; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (2014-03-03)
Article
Accés restringit per política de l'editorialThis paper shows the capabilities of applying the three-dimensional finite element method (3D-FEM) for designing complex-shaped substation connectors to operate at 765 kVRMS AC. To check this methodology, it was analyzed ... -
Ripple free fault tolerant control of five phase permanent magnet machines
Salehi Arashloo Arashloo, Ramin; Salehifar, Mehdi; Romeral Martínez, José Luis; Sala Caselles, Vicenç (2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis study is dealt with fault tolerant control of five phase permanent magnet (PM) machines. The main objectives are to increase the output power while eliminating the generated torque ripples. As a new aspect, the effect ... -
Risk assessment of energy investment in the industrial framework – Uncertainty and Sensitivity analysis for energy design and operation optimisation
Urbano González, Eva María; Martínez Viol, Víctor; Kampouropoulos, Konstantinos; Romeral Martínez, José Luis (2021-09)
Article
Accés obertThe industry is a crucial actor towards the energy transition with the possibility to adopt new energy strategies including a prosumer model. However, industries are struggling to adopt smart energy approaches, and initiatives ... -
Rotor of synchronous reluctance motor optimization by means reluctance network and genetic algorithm
López Torres, Carlos; Michalski, Tomasz Dobromir; García Espinosa, Antonio; Romeral Martínez, José Luis (2016)
Text en actes de congrés
Accés restringit per política de l'editorialAn optimal design for a rotor of SynRM is proposed on this paper. The inductances of the machine computed in dq-axes allow determining machine performance and the motor behavior. High magnetic saturation on this kind of ... -
Runout tracking in electric motors using self-mixing interferometry
Atashkhooei, Reza; Urresty Betancourt, Julio César; Royo Royo, Santiago; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis (IEEE Industrial Electronics Society, 2014-01-17)
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Self-powered wireless sensor applied to gear diagnosis based on acoustic emission
Delgado Prieto, Miquel; Zurita Millán, Daniel; Wang, Wensi; Machado Ortiz, Anderson; Ortega Redondo, Juan Antonio; Romeral Martínez, José Luis (2016-01-01)
Article
Accés obertAdvanced sensing strategies in the industrial sector are becoming a valued technological answer to increase the performance and competitiveness. The development of enhanced sensing solutions considering both technology and ... -
Semi-supervised transfer learning methodology for fault detection and diagnosis in air-handling units
Martínez Viol, Víctor; Urbano González, Eva María; Torres Rangel, José Enrique de Jesús; Delgado Prieto, Miquel; Romeral Martínez, José Luis (Multidisciplinary Digital Publishing Institute, 2022-09-02)
Article
Accés obertHeating, ventilation and air-conditioning (HVAC) systems are the major energy consumers among buildings’ equipment. Reliable fault detection and diagnosis schemes can effectively reduce their energy consumption and maintenance ... -
Shaft trajectory analysis in a partially demagnetized permanent magnet synchronous motor
Urresty Betancourt, Julio César; Atashkhooei, Reza; Riba Ruiz, Jordi-Roger; Romeral Martínez, José Luis; Royo Royo, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2013-08-01)
Article
Accés restringit per política de l'editorialAbstract—Demagnetization faults have a negative impact on the behavior of permanent-magnet synchronous machines, thus reducing their efficiency, generating torque ripple, mechanical vibrations, and acoustic noise, ... -
Short-Term load forecasting using cartesian genetic programming: an efficient evolutive strategy case: Australian electricity market
Giacometto Torres, Francisco; Kampouropoulos, Konstantinos; Romeral Martínez, José Luis (2015)
Text en actes de congrés
Accés restringit per política de l'editorialCurrently, the Cartesian Genetic Programming approaches applied to regression problems tackle the evolutive strategy from a static point of view. They are confident on the evolving capacity ... -
Signal injection as a fault detection technique
Cusidó Roura, Jordi; Romeral Martínez, José Luis; Ortega Redondo, Juan Antonio; García Espinosa, Antonio; Riba Ruiz, Jordi-Roger (2011-03)
Article
Accés obertDouble frequency tests are used for evaluating stator windings and analyzing the temperature. Likewise, signal injection on induction machines is used on sensorless motor control fields to find out the rotor position. ... -
Simulación del proceso de emisión acústica. Generación de ondas elásticas transitorias en un engranaje bajo tensión
Cobo Molina, Raúl; Rezano Inza, Tomás; Riera Colom, María Dolores; Romeral Martínez, José Luis (2013)
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Accés obertCon el objetivo de que el funcionamiento de una máquina sea el correcto es imperativo asegurar que existe un buen mantenimiento predictivo. Es conveniente tener un sistema inteligente y dispositivos capaces de detectar ... -
Sistemas ciber-físicos industriales: Concepto y consideraciones previas
Romeral Martínez, José Luis; Delgado Prieto, Miquel; Ramírez Chávez, Mayra; Arellano Espitia, Francisco; Valls Pérez, Joan (2023-10-27)
Audiovisual
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Smart multi-model approach based on adaptive neuro-fuzzy inference systems and genetic algorithms
Sala Cardoso, Enric; Kampouropoulos, Konstantinos; Giacometto Torres, Francisco; Romeral Martínez, José Luis (2014)
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Accés restringit per política de l'editorialA model of power demand represents the foundation of any intelligent Energy Management System, and its accuracy is the key factor determining the performance of such system. In order to improve the accuracy of the modeling ... -
Stability analysis of a microgrid system based on inverter-interfaced distributed generators
Andrade Rengifo, Fabio; Kampouropoulos, Konstantinos; Cusidó Roura, Jordi; Romeral Martínez, José Luis (2013)
Article
Accés restringit per política de l'editorialThis paper presents a phase-plane trajectory analysis and the appliance of Lyapunov´s methodology to evaluate the stability limits of a small signal model of a Microgrid system. The work done is based on a non-linear tool ... -
Stator short circuits detection in PMSM by means of higher order spectral analysis (HOSA)
Rosero García, Javier Alveiro; Ortega Redondo, Juan Antonio; Urresty Betancourt, Julio César; Cárdenas Araújo, Juan José; Romeral Martínez, José Luis (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
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Accés obertThis paper presents and analyzed short circuit failures for Permanent Magnet Synchronous Motor (PMSM). The study includes stated and dynamic condition for experimental and simulation test. The stator current is analyzed ... -
STLF in the user-side for an iEMS based on evolutionary training of adaptive networks
Cárdenas Araújo, Juan José; Giacometto Torres, Francisco; García Espinosa, Antonio; Romeral Martínez, José Luis (2012)
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Accés restringit per política de l'editorialIt is a fact that the short-term load forecasting (STLF)in the user side is growing interest. Consequently, intelligent energy management systems (iEMSs) are including this capability in order to take autonomous decisions. ... -
Study and evaluation of MOSFET Rds(ON)-impedance efficiency losses in high power multilevel DCI-NPC amplifiers
Sala Caselles, Vicenç; Ruiz Illana, Germán; Romeral Martínez, José Luis (2011)
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Accés restringit per política de l'editorialThis work justifies the usefulness of multilevel Powe Amplifiers with DCI-NPC (Diode Clamped Inverter–Neutral Point Converter) topology in applications where size and weight needs was optimized. These Amplifiers can work ... -
Study and improvement of DC-Link perturbations models for DCI-NPC power amplifiers
Sala Caselles, Vicenç; Romeral Martínez, José Luis (2011)
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Accés restringit per política de l'editorialThis paper presents the most important sources of distortion in high power DCI-NPC amplifiers. These distortions sources are attributed to power supply perturbations due to the DC-Link midpoint voltage oscillations. It is ...