Exploració per autor "Matas Alcalá, José"
Ara es mostren els items 21-40 de 57
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Control scheme for photovoltaic three-phase inverters to minimize peak currents during unbalanced grid-voltage sags
Miret Tomàs, Jaume; Castilla Fernández, Miguel; Camacho Santiago, Antonio; García de Vicuña Muñoz de la Nava, José Luis; Matas Alcalá, José (2012)
Article
Accés restringit per política de l'editorialNowadays, the majority of the photovoltaic (PV) power sources are connected to the public grid. One of the main connection problems occurs when voltage sags appear in the grid due to short circuits, lightning, etc. ... -
Control strategies based on effective power factor for distributed generation power plants during unbalanced grid voltage
Camacho Santiago, Antonio; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; Guzmán Solà, Ramon; de Sousa Pérez, Óscar; Martí Colom, Pau; García de Vicuña Muñoz de la Nava, José Luis (2013)
Text en actes de congrés
Accés restringit per política de l'editorialUnbalanced voltages in three-phase power systems is a common perturbation propagated along the grid. Distributed Generation plants have gained widespread attention due to their capability to improve power quality in a ... -
Control strategy to maximize the power capability of PV three-phase inverters during voltage sags
Sosa, Jorge Luis; Castilla Fernández, Miguel; Miret Tomàs, Jaume; Matas Alcalá, José; Al-Turki, Y.A. (2016-04-01)
Article
Accés obertUnder voltage sags, grid-tied photovoltaic inverters should remain connected to the grid according to low-voltage ride-through requirements. During such perturbations, it is interesting to exploit completely the distributed ... -
Coordinated reactive power control for static synchronous compensators under unbalanced voltage sags
Castilla Fernández, Miguel; Miret Tomàs, Jaume; Camacho Santiago, Antonio; Matas Alcalá, José; Alarcón Gallo, Eduardo; García de Vicuña Muñoz de la Nava, José Luis (2012)
Text en actes de congrés
Accés restringit per política de l'editorialUnbalanced voltage sags strongly deteriorate the performance of power converters and electrical machines connected to the distribution network. In particular, a reduction of the power quality is noticed in these equipments, ... -
Design and analysis of the droop control method for parallel inverters considering the impact of the complex impedance on the power sharing
Yao, W.; Chen, Min; Matas Alcalá, José; Guerrero Zapata, Josep Maria; Qian, Z.-M. (IEEE Press. Institute of Electrical and Electronics Engineers, 2011-02)
Article
Accés restringit per política de l'editorialThis paper investigates the characteristics of the active and reactive power sharing in a parallel inverters system under different system impedance conditions. The analyses conclude that the conventional droop method ... -
Design of an analog quasi-steady-state nonlinear current-mode controller for single-phase active power filter
Miret Tomàs, Jaume; García de Vicuña Muñoz de la Nava, José Luis; Castilla Fernández, Miguel; Matas Alcalá, José; Guerrero Zapata, Josep Maria (2009-12)
Article
Accés obertThe injection of sinusoidal current to an electrical grid is nowadays possible with the use of active power filters (APFs).With quasi-steady-state (QSS) nonlinear controllers, these power filters provide low ... -
DISPOSITIUS I TECNOLOGIES (Examen 1r quadrimestre)
Matas Alcalá, José (Universitat Politècnica de Catalunya, 2001-01-29)
Examen
Accés restringit a la comunitat UPC -
Energy commitment for a power system supplied by multiple energy carriers system using following optimization algorithm
Dehghani, Mohammad; Mardaneh, Mohammad; Parkash Malik, Om; Guerrero, Josep M.; Ramírez Mendoza, Ricardo A.; Morales Menendez, Ruben; Matas Alcalá, José; Abusorrah, Abdullah (MDPI, 2020-08-24)
Article
Accés obertIn today’s world, the development and continuation of life require energy. Supplying this energy demand requires careful and scientific planning of the energy provided by a variety of products, such as oil, gas, coal, ... -
Fast grid synchronization technique based on a multiple cascaded general integrator scheme for distributed generation inverters
Matas Alcalá, José; Castilla Fernández, Miguel; García de Vicuña Muñoz de la Nava, José Luis; Miret Tomàs, Jaume; Alarcón Gallo, Eduardo; Camacho Santiago, Antonio (2012)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper proposes a new structure for grid synchronization based on generalized integrators (GI) that lead to fast detection of positive and negative components of the grid voltage. The GI are used as a band pass ... -
Grid-fault control scheme for three-phase photovoltaic inverters with adjustable power quality characteristics
Castilla Fernández, Miguel; Miret Tomàs, Jaume; Sosa Avendaño, Jorge Luis; Matas Alcalá, José; García de Vicuña Muñoz de la Nava, José Luis (2010-12-23)
Article
Accés restringit per política de l'editorialThe power quality of a three-phase photovoltaic (PV) inverter drastically deteriorates in the presence of grid faults with unbalanced voltages.Aripple in the injected power and an increase in the current harmonic ... -
HIL-assessed fast and accurate single-phase power calculation algorithm for voltage source inverters supplying to high total demand distortion nonlinear loads
El Mariachet Carreño, Jorge; Guan, Yajuan; Matas Alcalá, José; Martín Cañadas, María Elena; Li, Mingshen; Guerrero, Josep M. (2020-10-07)
Article
Accés obertThe dynamic performance of the local control of single-phase voltage source inverters (VSIs) can be degraded when supplying to nonlinear loads (NLLs) in microgrids. When this control is based on the droop principles, a ... -
Impact of different regulatory structures on the management of energy communities
Hoz Casas, Jordi de la; Alonso Travesset, Alexandre; Coronas Herrero, Sergio; Martín Cañadas, María Elena; Matas Alcalá, José (2020-06-01)
Article
Accés obertThe following paper aims to prove the importance of embedding the regulatory framework when analyzing the distributed generation activity of an energy community. At present, most of the scientific literature has focused ... -
Individual vs. community: Economic assessment of energy management systems under different regulatory frameworks
Alonso Travesset, Alexandre; Hoz Casas, Jordi de la; Martín Cañadas, María Elena; Coronas Herrero, Sergio; Matas Alcalá, José (2021-01-28)
Article
Accés obertIn the context of the increasing popularity of self-sufficient communities around the globe, this study aims to compare the economic performance of energy management in two distinct situations: whether it is conducted ... -
Inverter parallelization for an islanded microgrid using the Hopf oscillator controller approach with self-synchronization capabilities
Li, Mingshen; Guan, Yajuan; Matas Alcalá, José; Guerrero, Josep M.; Vasquez Quintero, Juan Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2021-11-01)
Article
Accés obertNonlinear dynamical systems such as weakly coupled oscillators are an interesting approach to be adopted for the regulation of power inverters inside microgrids. Aiming at the synchronization and load sharing in islanded ... -
Methodology for obtaining simplified models for the long-term energy management of renewable assets under a high degree of uncertainty
Coronas Herrero, Sergio; Hoz Casas, Jordi de la; Martín Cañadas, María Elena; Mesas García, Juan José; Matas Alcalá, José (Elsevier, 2022-11)
Article
Accés obertThis paper addresses the attainment of a methodology aimed at obtaining simplified models embedding the regulatory constraints imposed by the country-specific remuneration mechanisms in the energy management system of long ... -
Microcontroladores MCS-51 y MCS-251
Matas Alcalá, José; Ramos Lara, Rafael Ramón (Edicions UPC, 2001)
Llibre
Accés restringit a la comunitat UPCLa importancia actual de los sistemas basados en microcontroladores es tal que en realidad están presentes en buena parte de los sistemas electrónicos de aplicación industrial y doméstica, como por ejemplo en el ratón de ... -
More-stable EPLL
Golestan, Saeed; Matas Alcalá, José; Abusorrah, Abdullah; Guerrero, Josep Maria (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
Article
Accés obertThe enhanced phase-locked loop (EPLL) is one of the most famous PLLs in single-phase applications and a versatile tool for different signal processing applications, especially for the grid synchronization of power converters. ... -
Multi-time scale energy management strategy based on MPC for 5G base stations considering backup energy storage and air conditioning
Ding, Ting; Wang, Junhua; Matas Alcalá, José; Guerrero Cruz, José Manuel; Qiao, Ruixun; Wang, Chenlu (Institute of Electrical and Electronics Engineers (IEEE), 2023)
Comunicació de congrés
Accés restringit per política de l'editorialThe increasing development of 5G technology has focused attention on the energy consumption of its base stations. As a result, it is crucial to establish energy-efficient 5G networks and reduce the operating costs associated ... -
New sogi-fll grid frequency monitoring with a finite state machine approach for better response in the face of voltage sag and swell faults
Abdali Nejad, Sajad; Matas Alcalá, José; Martín Cañadas, María Elena; Hoz Casas, Jordi de la; Al-Turki, Y.A. (2020-04-01)
Article
Accés obertThe SOGI-FLL (Second-Order Generalized Integrator–Frequency-Locked Loop) is a well-known and simple adaptive filter that allows for estimating the parameters of grid voltage with a small computational burden. However, the ... -
Power calculation algorithm for single-phase droop-operated inverters considering nonlinear loads and unsing n-order SOGI filtering
El Mariachet Carreño, Jorge; Matas Alcalá, José; Hoz Casas, Jordi de la; Al-Turki, Y.A. (2018)
Comunicació de congrés
Accés obertThe average active and reactive powers, P and Q, are crucial parameters that have to be calculated when sharing common loads between parallelized droop-operated single-phase inverters. However, the droop method algorithm ...