Exploració per tema "Electrònica de potència"
Ara es mostren els items 21-40 de 266
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A simulation study of proportional resonant controller based on the implementation of frequency-adaptive virtual flux estimation with the LCL filter
(2015)
Text en actes de congrés
Accés obertThis paper discusses the implementation of proportional resonant (PR) current controllers for a Voltage Source Converter (VSC) with LCL filter which is synchronized to the grid by virtual flux (VF) estimation with inherent ... -
Active damping of a DC network with a constant power load: an adaptive passivity-based control approach
(2018)
Comunicació de congrés
Accés obertThis paper proposes a nonlinear, adaptive controller to increase the stability margin of a direct-current (DC) small-scale electrical network containing a constant power load, whose value is unknown. Due to their negative ... -
Active power limiter for static synchronous generators in renewable applications
(Institute of Electrical and Electronics Engineers (IEEE), 2020-08-28)
Article
Accés obertVirtual Synchronous Generators (VSGs) are an interesting control approach for the connection of renewable energies to the electrical grid through power converters. These power devices have shown their ability to enable ... -
Active thermal control in neutral-point-clamped multilevel converters based on switching-cell arrays
(2023-09-27)
Article
Accés obertNeutral-point-clamped multilevel converters are a suitable solution to the implementation of low–medium voltage and power applications at present, thanks to their intrinsic superior voltage and current quality. The ... -
Active-Clamp Flyback converter for USB-PD application design and implementation
(Universitat Politècnica de Catalunya, 2021-05-28)
Projecte Final de Màster Oficial
Accés restringit per acord de confidencialitat -
Adaptive discontinuous zero sequence signal for modular multilevel converter applications
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThis work proposes a technique to inject a discontinuous zero sequence signal (D-ZSS) into voltage modulation of the modular multilevel converter arms. The core of the technique is the clamping of the arm voltages to a ... -
Adaptive energy management front-ends for variable-distance assymetric wireless power transfer links
(Universitat Politècnica de Catalunya, 2014-07-22)
Treball Final de Grau
Accés obert[ANGLÈS] Resonant Inductive Coupling Wireless Power Transfer (RIC-WPT) is a leading field of research due to the growing number of applications that can benefit from this technology: from biomedical implants to consumer ... -
Aggregated model of a distributed PV plant using the synchronous power controller
(2015)
Text en actes de congrés
Accés obertPower plants employing renewable energy sources connected to large power systems continue increasing their number and size. PV and wind farms are a clear example of this trend. They employ power electronics in order to ... -
AI-based damping of electromechanical oscillations by using grid-connected converter
(2021-03-05)
Article
Accés obertThe proliferation of grid-connected converter interfaced energy sources in Smart Grids, enhance sustainability and efficiency as well as minimizing power losses and costs. However, concerns arise regarding the stability ... -
Amplificador conmutado con asistencia lineal por derivación de corriente mediante modulación de impedancia
(Universitat Politècnica de Catalunya, 2013-12-10)
Treball Final de Grau
Accés obert[ANGLÈS] This work has as main objective the study of the shunt current regulation technique in the Boost DC-DC converter. The design of a theoretical and a simulation model to analyze the behavior of the circuit and obtain ... -
Amplificador de potencia para excitación de arrays de ultrasonidos de media intensidad
(Universitat Politècnica de Catalunya, 2020-07)
Treball Final de Grau
Accés obertThe objective of this Final Degree Project is framed within a line of work for the generation of acoustic fields through a grouping of transducers, excited by controlled amplitude and phase signals, with medium and high ... -
An agile supply modulator with improved transient performance for power efficient linear amplifier employing envelope tracking techniques
(Institute of Electrical and Electronics Engineers (IEEE), 2019-08-09)
Article
Accés obertThis article presents an agile supply modulator with optimal transient performance that includes improvement in rise time, overshoot and settling time for the envelope tracking supply in linear power amplifiers. For this ... -
An almost globally stable adaptive phase-locked loop for synchronization of a voltage source converter to a weak grid
(John Wiley & sons, 2023-01-01)
Article
Accés restringit per política de l'editorialIn this article we are interested in the problem of adaptive synchronization of a voltage source converter with a possibly weak grid with unknown angle and frequency, but knowledge of its parameters. To guarantee a suitable ... -
An observer-based composite identifier for online estimation of the Thévenin equivalent parameters of a power system
(John Wiley & sons, 2024-03-15)
Article
Accés obertWe consider a Thévenin equivalent circuit capturing the dynamics of a power grid as seen from the point of common coupling with a power electronic converter and propose a solution to the problem of online identification ... -
Analysis and design of a digital proportional-resonant controller for a single-phase bidirectional LC rectifier
(Universitat Politècnica de Catalunya, 2018-01)
Projecte Final de Màster Oficial
Accés obertA boost high-power-factor ac/dc converter is designed. The converter presents a bi-directional power flow capability. A bias capacitor connected in series with the ac source provides a dc voltage boost at the input. ... -
Analysis and design of a terminal sliding mode control applied to a step-down power converter
(Universitat Politècnica de Catalunya, 2019-06-25)
Treball Final de Grau
Accés obertGenerally, step-down converters are controlled by a linear control called average model. This control technique results in a system behavior highly dependent on the working point. Therefore, non-linear techniques have been ... -
Analysis of equilibrium points and optimal grid support of grid-forming modular multilevel converter for balanced and unbalanced faults
(Elsevier, 2023-11-01)
Article
Accés obertThis short-communication presents a steady-state analysis of a grid-forming Modular Multilevel Converter (MMC) providing optimal voltage support to the AC network under normal and constrained conditions. The analysis is ... -
Analysis of Neutral Point Clamped power converters in FPL systems under grid faults
(2022)
Comunicació de congrés
Accés restringit per política de l'editorialDistribution lines are dealing with several challenges such as the increase of power consumption, the integration of renewable resources, etc. which are driving them to more intelligent grids or smart grids. In these smart ... -
Analysis of the fault-tolerance capacity of the multilevel active-clamped converter
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Article
Accés restringit per política de l'editorialThanks to the inherent redundancy to generate the different output voltage levels, the multilevel active-clamped (MAC) topology presents an important fault-tolerance ability which makes it interesting for several ... -
Analysis on impacts of the shunt conductances in multi-terminal HVDC grids optimal power-flow
(Institute of Electrical and Electronics Engineers (IEEE), 2017)
Text en actes de congrés
Accés obertThis study deals with impacts of the shunt conductances associated with HVDC cables and VSC-HVDC stations on optimal operation of Multi-Terminal HVDC (MT-HVDC). In this study, for the first time, shunt conductances are ...