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Mostrando ítems 41-50 de 299
Artículo
Power-electronic systems for the grid integration of renewable energy sources: a survey
(Institute of Electrical and Electronics Engineers (IEEE), 2006)
The use of distributed energy resources is increasingly being pursued as a supplement and an alternative to large conventional central power stations. The specification of a powerelectronic interface is subject to ...
Artículo
Modeling Airfield Ground Lighting Systems for Narrowband Power-Line Communications
(IEEE-Institute of Electrical and Electronics Engineers, 2010)
Airfield ground lighting (AGL) systems are responsible for providing visual reference to aircrafts in the airport neighborhood. In an AGL system, a large number of lamps are organized in serial circuits and connected to ...
Artículo
Analysis of the power balance In the cells of a multilevel cascaded H-Bridge converter
(Institute of Electrical and Electronics Engineers (IEEE), 2010)
Multilevel cascaded H-Bridge converters (CHB) have been presented as a good solution for high power applications. In this way, several control and modulation techniques have been proposed for this power converter topology. ...
Artículo
A technological acceptance of e-learning tools used in practical and laboratory teaching, according to the European higher education area
(Taylor & Francis, 2008)
The application of scientific tools to analyse the use of Internet-based e-learning tools in academic settings is in general an ignored area. E-learning tools are actually an emergent topic as a result of the new ideas ...
Artículo
Model-Based Predictive Current Controllers in Multiphase Drives Dealing with Natural Reduction of Harmonic Distortion
(MDPI, 2019-05)
An important drawback in the application of model-based predictive controllers for multiphase systems is the relatively high harmonic content. Harmonics arise due to the fixed sampling-time nature and the absence of ...
Artículo
Internally compensated LDO regulator based on the cascoded FVF
(Elsevier, 2014-10)
In this paper, an internally compensated low dropout (LDO) voltage regulator based on the Flipped Voltage Follower (FVF) is proposed. By means of capacitive coupling and dynamic biasing, the transient response to both ...
Artículo
Integral Sliding-Mode Control-Based Direct Power Control for Three-Level NPC Converters
(MDPI, 2020-01)
Three-level neutral-point-clamped (NPC) converter is widely used in energy conversion systems due to its good properties for high-power systems presenting output waveforms with reduced harmonic distortion. To obtain ...
Artículo
An empirical study of the driving forces behind online communities
(2009)
Purpose – A large variety of online communities have emerged during the last years as a result of the challenges faced by both the business and scientific worlds. This trend has also been promoted by the development of ...
Artículo
Measurement of 73Ge(n,γ) cross sections and implications for stellar nucleosynthesis
(Elsevier, 2019)
73Ge(n,γ) cross sections were measured at the neutron time-of-flight facility n_TOF at CERN up to neutron energies of 300 keV, providing for the first time experimental data above 8 keV. Results indicate that the stellar ...
Artículo
IGBT-gating failure effect on a fault-tolerant predictive current-controlled five-phase induction motor drive
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Multiphase machine drives are gaining importance in high-reliability applications due to their fault-tolerance capability and their ability to cope with the postfault operation without any extra electronic components. ...