Exploració per autor "García Vílchez, Encarnación"
Ara es mostren els items 1-20 de 37
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A contribution to students' assessment adjusts of multiple choice questionnaires with fuzzy logic
Domingo Peña, Joan; Martínez García, Herminio; García Vílchez, Encarnación (European Society for Engineering Education (SEFI), 2022)
Text en actes de congrés
Accés obertIn University environment, it is common to use multiple-choice objective tests with three or four possible answers, of which only one is correct and the rest are erroneous. In this type of tests, usually the wrong answers ... -
A contribution to students’ assessment adjusts of multiple choice questionnaires with fuzzy logic
Martínez García, Herminio; García Vílchez, Encarnación (Universitat Politècnica de Catalunya, 2022-09)
Text en actes de congrés
Accés obertIn University environment, it is common to use multiple-choice objective tests with three or four possible answers, of which only one is correct and the rest are erroneous. In this type of tests, usually the wrong answers ... -
Activities as a link element in the bachelor's degree in Industrial Electronics and Automation Engineering
Martínez García, Herminio; García Vílchez, Encarnación (European Society for Engineering Education (SEFI), 2022)
Text en actes de congrés
Accés obertThis paper describes the experience carried out within the Bachelor's Degree in Industrial Electronics and Automation Engineering taught at the Eastern Barcelona School of Engineering (EEBE) of the Technical University of ... -
Capacitorless DC/DC regulator as a candidate topology for photovoltaic solar
Martínez García, Herminio; García Vílchez, Encarnación (Cambridge Scholars Publishing, 2020)
Capítol de llibre
Accés restringit per política de l'editorialLinear-assisted DC/DC regulators (or linear-switching hybrid DC/DC regulators) consist of a linear voltage regulator (classic NPN/nMOS topologies or PNP/pMOS low-dropout structures) connected in parallel with a switching ... -
Capacitorless low-dropout regulator for power management applications
Martínez García, Herminio; García Vílchez, Encarnación (2021)
Text en actes de congrés
Accés obertThis article aims to present the design of a 4.5-V, 450-mA low drop-out (LDO) voltage linear regulator based on a two-stage cascoded operational transconductance amplifier (OTA) as error amplifier. The aforementioned ... -
Capacitorless voltage regulator devoted to power management
Martínez García, Herminio; García Vílchez, Encarnación (Vienna University of Technology, 2020)
Text en actes de congrés
Accés obertThis article aims to present the design of a 4.5-V, 450-mA low drop-out (LDO) voltage linear regulator based on a two-stage cascoded operational transconductance amplifier (OTA) as error amplifier. The aforementioned ... -
Combined method of flow-reduced dump load for frequency control of an autonomous micro-hydropower in AC microgrids
Peña Pupo, Leonardo; Martínez García, Herminio; García Vílchez, Encarnación; Fariñas Wong, Ernesto Y.; Núñez Álvarez, José R. (2021-12-02)
Article
Accés obertNowadays, microgrids (MGs) play a crucial role in modern power systems due to possibility of integrating renewable energies into grid-connected or islanded power systems. The Load Frequency Control (LFC) is an issue of ... -
Combined method of flow-reduced dump load for frequency control of an autonomous micro-hydropower in AC microgrids
Peña Pulpo, Leonardo; Martínez García, Herminio; García Vílchez, Encarnación; Fariñas Wong, Ernesto Y.; Núñez Álvarez, José R. (2021-12-02)
Article
Accés obertNowadays, microgrids (MGs) play a crucial role in modern power systems due to possibility of integrating renewable energies into grid-connected or islanded power systems. The Load Frequency Control (LFC) is an issue of ... -
Comparative aspects of control strategies for hybrid DC/DC regulators with variable-switching frequency
Martínez García, Herminio; García Vílchez, Encarnación (Cambridge Scholars Publishing, 2020)
Capítol de llibre
Accés restringit per política de l'editorialLinear-assisted DC/DC regulators (or linear-switching hybrid DC/DC regulators) consist of a linear voltage regulator (classic NPN/nMOS topologies or PNP/pMOS low-dropout structures) connected in parallel with a switching ... -
Comparative study of energy management strategies in collaborative microgrids of domestic prosumers
Romera Codina, Àngela; Martínez García, Herminio; García Vílchez, Encarnación; Casellas Beneyto, Francisco (2021)
Text en actes de congrés
Accés obertAn optimization model is proposed to manage a residential microgrid including a charging spot with a vehicle-togrid system and renewable energy sources. We consider the microgrid operated in grid-connected mode. The model ... -
Conmutación simétrica de un rectificador trifásico versus convertidor AC/AC para la mejora del factor de potencia en microcentrales hidroeléctricas
Bory Prevez, Henry; Martínez García, Herminio; Vázquez Seisdedos, Luis; García Vílchez, Encarnación (2020)
Comunicació de congrés
Accés obertEn el presente artículo se realiza el análisis de un rectificador trifásico tipo puente con un interruptor en serie con la carga conmutado con ángulo simétrico. Para dicho análisis se trabajan con una serie de índices como ... -
Estudio de viabilidad al sustituir el sistema de almacenaje convencional por una pequeña central hidráulica reversible
Llopis Vilar, Nil; Martínez García, Herminio; García Vílchez, Encarnación; Casellas Beneyto, Francisco (2020)
Comunicació de congrés
Accés obertEl presente trabajo presenta el estudio de viabilidad donde se analiza si es posible sustituir las baterías convencionales que se utilizan para almacenar la energía eléctrica en las microrredes eléctricas (microgrids, MG) ... -
Evolution of guided activities in the teaching of analog electronics in bachelor’s degree in industrial and automatic electronics engineering to increase the students’ motivation
Martínez García, Herminio; García Vílchez, Encarnación (Universitat Politècnica de Catalunya, 2022-09)
Text en actes de congrés
Accés obertWithin the offer of core courses of the Bachelor’s Degree in Industrial Electronics and Automation Engineering of the Technical University of Catalonia (UPC), which appeared as a result of the current undergraduate study ... -
Guided activities in the teaching of analog electronics in the bachelor's degree in Industrial and Automatic Electronics
Martínez García, Herminio; García Vílchez, Encarnación (European Society for Engineering Education (SEFI), 2022)
Text en actes de congrés
Accés obertWithin the offer of core courses of the Bachelor’s Degree in Industrial Electronics and Automation Engineering of the Technical University of Catalonia (UPC), which appeared as a result of the current undergraduate study ... -
Improvement of the PF using symmetrical angle switched single- & three-phase rectifiers in micro hydro power plants
Bory Prevez, Henry; Martínez García, Herminio; Vazquez Seisdedos, Luis; García Vílchez, Encarnación (Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertMicro-size hydro power plants (µHPPs) are commonly used at remote areas to supply islanded AC micro-grids. A typical way to control grid frequency is to manipulate active power dissipated in ballast loads by AC/AC converters. ... -
Improvements in frequency control of an AC microgrid by means of micro-hydropower combined flow-reduced dump load control method
Peña Pupo, Leonardo; Martínez García, Herminio; García Vílchez, Encarnación (2022)
Text en actes de congrés
Accés obertLoad Frequency Control (LFC) is an issue of top importance to ensure microgrids (MGs) safe and reliable operation in AC MGs. Primary frequency control of each energy source can be guaranteed in AC MGs in order to integrate ... -
Improvements in frequency control of an AC microgrid by means of micro-hydropower combined flow-reduced dump load control method
Peña Pupo, Leonardo; Martínez García, Herminio; García Vílchez, Encarnación; Domínguez Abreu, Hugo; Fariñas Wong, Ernesto Y. (2022-09-01)
Article
Accés obertLoad Frequency Control (LFC) is an issue of top importance to ensure microgrids (MGs) safe and reliable operation in AC MGs. Primary frequency control of each energy source can be guaranteed in AC MGs in order to integrate ... -
Intelligent Transmitter of Field (ITF) based on microcontroller for data acquisition in PV solar plants
Martínez García, Herminio; García Vílchez, Encarnación (Universidad de Málaga, 2017)
Text en actes de congrés
Accés obertIn this article the design of a prototype of an Intelligent Transmitter of Field (ITF) is presented. The objective of this ITF is to be used as a data acquisition in a PV solar plant implemented at the new Campus, the ... -
Inverter control analysis in a microgrid community based on droop control strategy
Salehi, Navid; Martínez García, Herminio; Velasco Quesada, Guillermo; García Vílchez, Encarnación (2021-09-01)
Article
Accés obertPower-sharing in a microgrid community (MGC) requires mandatory strategies in order to stabilize the system by maintaining the rated frequency and voltage. The hierarchical control strategy is the most adopted control ... -
Inverter control analysis in a microgrid community based on droop control strategy
Salehi, Navid; Martínez García, Herminio; Velasco Quesada, Guillermo; García Vílchez, Encarnación (2021)
Text en actes de congrés
Accés restringit per política de l'editorialPower-sharing in a microgrid community (MGC) requires mandatory strategies in order to stabilize the system by maintaining the rated frequency and voltage. The hierarchical control strategy is the most adopted control ...