Results 61 to 70 of about 9,713 (302)

Performance analysis and control of a novel 7‐level active neutral point clamped (ANPC) topology

IET Power Electronics, 2023
This paper introduces a novel 7‐level active neutral‐point clamped (ANPC) switched capacitor multilevel inverter (SCMLI) with voltage‐boosting capabilities. The proposed converter can produce seven levels and a voltage boosting of 1.5 times with a single
Mohammad Zaid, Adil Sarwar, Layeba Quayyoom, Mohammad Tayyab, Farhad Ilahi Bakhsh, Atif Iqbal, Akbar Ahmad   +6 more
doaj   +1 more source

Dual-transformer-based hybrid resonant three-level ZCS converter

Energy Reports, 2021
A hybrid resonant three-level converter comprised of dual transformers is proposed in this paper, which is suitable for the application of distributed photovoltaic power accessing the medium voltage dc distribution network.
Syed Waqar Azeem, Kashif Mehmood, Khalid Mehmood Cheema, Muhammad Faizan Tahir, Ahmed M. El-Sherbeeny   +4 more
doaj   +1 more source

A simplified space-vector modulation algorithm for four-leg NPC converters [PDF]

, 2016
To interface generation sources and loads to four-wire distribution networks is important to use power converters and modulation methods which provide high performance, flexi¬bility and reliability.
Cardenas, Roberto, Clare, Jon C., Diaz, Matias, Kennel, Ralph, Rojas, Felix   +4 more
core   +2 more sources

Direct Power Control of Neutral-Point-Clamped PWM Converter

IEEJ Transactions on Industry Applications, 2004
This paper describes direct power control of a neutral-point-clamped PWM converter. The key of this strategy is a direct selection of switching modes on the basis of instantaneous control errors of active and reactive power. In addition, this paper discusses neutral point voltage control and PWM pattern equalization schemes.
Toshihiko Noguchi, Akira Sato
openaire   +2 more sources

Mesoporous Carbon Thin Films with Large Mesopores as Model Material for Electrochemical Applications

Advanced Functional Materials, EarlyView.
Mesoporous carbon thin films possessing 70 nm mesopores are prepared on titanium substrates by soft templating of resol resins with a self‐synthesized poly(ethylene oxide)‐block‐poly(hexyl acrylate) block copolymer. A strategy to avoid corrosion of the metal substrate is presented, and the films are extensively characterized in terms of morphology ...
Lysander Q. Wagner, Joshua Schober, Pascal Dippell, Chantal Glatthaar, Smail Mekhilef, David Schäfer, Hannes Hergert, Marcus Rohnke, Matthias T. Elm, Bernd M. Smarsly   +9 more
wiley   +1 more source

THREE-LEVEL INDIRECT MATRIX CONVERTER WITH TWO SERIES Z-SOURCE NETWORKS [PDF]

Carpathian Journal of Electrical Engineering, 2019
In previous articles, the concept of series Z-source network has been extended to conventional indirect matrix converter to raise the voltage gain to unity and beyond.
Francis Boafo EFFAH, Philip OKYERE, Mubarak Sani ELLIS, Patrick WHEELER, Alan WATSON, Jon CLARE, Joseph OJO   +6 more
doaj  

Performance Analysis of Modular Multilevel Converter with NPC Sub-Modules in Photovoltaic Grid-Integration

Applied Sciences, 2022
In this article, a three-phase modular multilevel converter (MMC) with three-level neutral point clamped converter (NPC) sub-modules (SMs) along with the placement of transformers in place of arm inductors is proposed for PV grid integration. Compared to
Suresh Mikkili, Raghu Vamsi Krishna, Praveen Kumar Bonthagorla, Tomonobu Senjyu   +3 more
doaj   +1 more source

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

Advanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief, Petr Rozhin, Ilaria Bertuol, Ali Raza, Leonardo Viti, Subhankar Roy, Enrico Cavarzerani, Luca Sbuelz, Matteo Brilli, Andrea Serinolli, Jacopo Nicoletti, Riccardo Piccoli, Sebastián Castilla, Simone Dal Zilio, Enrique Rodríguez‐Castellón, Miriam Serena Vitiello, Maurizio Selva, Flavio Rizzolio, Alvise Perosa, Giovanni Antonio Salvatore, Domenico De Fazio   +20 more
wiley   +1 more source

Modular Multilevel Converter for Low-Voltage Ride-Through Support in AC Networks

Energies, 2021
New grid-connected systems have imposed additional requirements regarding reliability, power quality, high levels of power processing capacity, and fault support, where power converters have a crucial role in fulfilling these requirements. Overcoming one
Victor Ramon França Bezerra de Souza, Luciano Sales Barros, Flavio Bezerra Costa   +2 more
doaj   +1 more source

The Essential Role and the Continuous Evolution of Modulation Techniques for Voltage-Source Inverters in the Past, Present, and Future Power Electronics [PDF]

, 2016
The cost reduction of power-electronic devices, the increase in their reliability, efficiency, and power capability, and lower development times, together with more demanding application requirements, has driven the development of several new inverter ...
García Franquelo, Leopoldo, Kouro, Samir, León Galván, José Ignacio, Rodríguez, José, Wu, Bin   +4 more
core   +1 more source