Výsledky vyhledávání - "Capacitat elèctrica"

Performance Evaluation of Three-Phase Grid-Connected Photovoltaic Inverters Using Electrolytic or Polypropylene Film Capacitors

Autor: Vassilios G. Agelidis, Josep Pou, B. Karanayil

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
Universitat Jaume I
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

In grid-connected photovoltaic (PV) power stations, improving the life expectancy and long-term reliability of three-phase PV inverters is urgently needed to match the significantly higher lifetime of the PV modules. A key contribution toward such im

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a8e9e2dd73fd54ab9561de053568bf89
https://doi.org/10.1109/tste.2014.2347967

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Single-carrier phase-disposition PWM implementation for multilevel flying capacitor converters

Autor: Amer M. Y. M. Ghias, Josep Pou, Gabriel J. Capella, Thierry Meynard, Vassilios G. Agelidis, Ricardo P. Aguilera

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

This letter proposes a new implementation of phase-disposition pulse-width modulation (PD-PWM) for multilevel flying capacitor (FC) converters using a single triangular carrier. The proposed implementation is much simpler than conventional PD-PWM tec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0581a3536667ee207a7575fa8eca6664
https://hdl.handle.net/10453/119185

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Voltage balancing strategy for a five-level flying capacitor converter using phase disposition PWM with sawtooth-shaped carriers

Autor: Amer M. Y. M. Ghias, Josep Pou, Mihai Ciobotaru, Vassilios G. Agelidis

Publikováno v: IECON
Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The flying capacitor (FC) multilevel converter has attracted a great deal of interest in the recent years because of its easier extension to a higher number of levels (n>;3), as compared to its counterpart, the diode-clamped converter (DCC). The main

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cb054e09e5b93d70cd0c03b62f01690e
https://doi.org/10.1109/iecon.2012.6389567

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Voltage balancing scheme for the multilevel flying capacitor converter using phase-shifted PWM

Autor: Ghias, Amer M.Y.M., Pou Félix, Josep, Ciobotaru, M., Agelidis, Vassilios

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname

In flying capacitor (FC) converters, phase-shifted pulse-width modulation (PS-PWM) provides natural voltage balancing. However, for a practical application, a more robust balancing mechanism of maintaining the FC voltages at the desired values is req

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e8c02dc0662ce091f6bbf44d3c3e0c91
https://hdl.handle.net/2117/17683

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Dificultades persistentes en el aprendizaje de la electricidad : estrategias de razonamiento de los estudiantes al explicar fenómenos de carga eléctrica

Autor: Mikel Ceberio Gárate, Jenaro Guisasola Aranzabal, José L. Herranz, José Manuel Almudí García

Publikováno v: Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Enseñanza de las ciencias: revista de investigación y experiencias didácticas; 2008: Vol.: 26 Núm.: 2; p. 177-192
Enseñanza de las Ciencias: revista de investigación y experiencias didácticas; 2008: Vol.: 26 Núm.: 2; p. 177-192

Este trabajo analiza las formas de razonamiento de estudiantes universitarios en las explicaciones sobre procesos de carga eléctrica en cuerpos. Al indagar en las formas de razonamiento utilizadas por los estudiantes para explicar estos fenómenos,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08c5012689f315eb723e25628e35d0e5
https://ddd.uab.cat/record/39826

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SiC modular multilevel converters: Sub-module voltage ripple analysis and efficiency estimations

Autor: Perez-Basante, A., Ceballos, S., Pou, J., Muro, A. G., Ainhoa Pujana, Ibáñez, P.

Publikováno v: Scopus-Elsevier
Recercat. Dipósit de la Recerca de Catalunya
Universitat Jaume I
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Two important technical challenges associated with the Modular Multilevel Converter (MMC) are the reduction of the voltage ripple of the Sub-Module (SM) capacitors and the reduction of the converter losses. This paper conducts a study focused on thes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::8f89c57b6010133a6262ed03b10f81bf
http://www.scopus.com/inward/record.url?eid=2-s2.0-84906539681&partnerID=MN8TOARS

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Voltage balancing of a five-level flying capacitor converter using optimum switching transitions

Autor: Mihai Ciobotaru, Amer M. Y. M. Ghias, Vassilios G. Agelidis, Josep Pou

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
IECON
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The flying capacitor (FC) multilevel converter requires a capacitor voltage balancing mechanism for proper operation. This paper proposes a voltage balancing scheme for a five-level FC converter based on phase disposition pulse-width modulation (PD-P

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ca7eb6423ba632c450272c7440bb0ac
http://hdl.handle.net/2117/17682

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Minimization of the capacitor voltage fluctuations of a modular multilevel converter by circulating current control

Autor: Picas Prat, Ricard, Pou Félix, Josep, Ceballos Recio, Salvador, Agelidis, Vassilios, Saeedifard, Maryam

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The modular multilevel converter (MMC) is one of the most potential converter topologies for medium/high power/voltage applications. One of the main technical challenges of an MMC is to eliminate/minimize the circulating currents within the legs. Cir

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::8bd79a7de47177d86e07b7bff0e261f3
http://hdl.handle.net/2117/17677

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