Exploració per tema "Condensadors elèctrics"
Ara es mostren els items 21-30 de 30
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New supercapacitor based on nanostructured devices
(Universitat Politècnica de Catalunya, 2015-10-22)
Projecte Final de Màster Oficial
Accés obertThe aim of this thesis is to demonstrate the feasibility of a new technology developed in MNT group consisting on fabrication Metal-Insulator-Metal (MiM) capacitor by using electrospray technique. First an overview of the ... -
Non-unit distance protection algorithm for multiterminal MMC-HVdc systems using DC capacitor resonance frequency
(Institute of Electrical and Electronics Engineers (IEEE), 2022-01-06)
Article
Accés obertHigh-voltage dc (HVdc) transmission has been largely used to interconnect asynchronous systems and integrate renewable energy resources into electrical grids. However, the high short-circuit currents and low-tolerance of ... -
On the modeling of switched capacitor converters with multiple outputs
(2014)
Text en actes de congrés
Accés restringit per política de l'editorialThe internal nodes of switched capacitor converters can be used to provide multiple pulsed width modulated voltages that, in combination with filter inductors, can extend the available dc outputs. Such converter architecture ... -
Optimal injection of harmonics in circulating currents of modular multilevel converters for capacitor voltage ripple minimization
(2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis paper proposes an algorithm to calculate the optimal amplitude and phase of the harmonic current components that can be injected in the circulating currents of a modular multilevel converter (MMC) to minimize the ... -
Optimum state voltage balancing method for stacked multicell converters
(2013)
Text en actes de congrés
Accés obertThis paper presents a voltage balancing method for stacked multicell converters based on phase disposition pulse-width modulation. This method is based on minimizing a cost function to determine the optimum redundant state ... -
Realización de condensadores electrónicamente variables: lineal o inversamente controlados por tensión
(Unión Científica Internacional de Radio (URSI), 1986)
Comunicació de congrés
Accés obert -
Series interline DC/DC current flow controller for meshed HVDC grids
(2017-07-30)
Article
Accés restringit per política de l'editorialThis paper proposes a DC/DC Current Flow Controller (CFC) for meshed High Voltage Direct Current (HVDC) grids. The CFC has the advantage of a simplified structure that allows to use minimum number of switches when ... -
Simulación numérica y validación experimental de evaporadores, condensadores y tubos capilares. Integración en sistemas de refrigeración por compresión
(Universitat Politècnica de Catalunya, 2000-07-18)
Tesi
Accés obertLa presente Tesis centra la atención en la simulación numérica y validación experimental del comportamiento térmico y fluido-dinámico de flujos bifásicos (líquido-vapor), así como su aplicación en sistemas y equipos térmicos, ... -
Voltage balancing method for a seven-level stacked multicell converter using minimum-switching transitions
(2013)
Text en actes de congrés
Accés obertThis paper presents a voltage balancing method for stacked multicell converters based on phase disposition pulse-width modulation. This method is based on minimizing a cost function to determine the optimum redundant state ... -
Voltage balancing method using phase-shifted PWM for stacked multicell converters
(2013)
Text en actes de congrés
Accés obertThis paper proposes an active voltage balancing method for stacked multicell converters (SMC) using phase-shifted pulse-width modulation, which is easy to implement and extend to high number of levels. The proposed method ...