Results 111 to 120 of about 31,230 (353)

A Neural Network Controller For The Direct Power Control Of Doubly Fed Induction Generator

Eletrônica de Potência, 2013
In this paper a direct power control strategy for a doubly-fed induction generator by using an artificial neural network controller with the multilayer perceptron structure is presented.
Rodrigo Andreoli de Marchi, Paulo S. Dainez, Fernando J. Von Zuben, Edson Bim   +3 more
doaj   +1 more source

Three-phase doubly fed induction generators: an overview

IET Electric Power Applications, 2010
Adjustable speed induction generators, especially the doubly fed induction generators (DFIG), are becoming increasingly popular due to their various advantages over fixed speed generator systems. A DFIG in a wind turbine has the ability to generate maximum power with varying rotational speed, ability to control active and reactive power by the ...
Tazil, M., Kumar, V., Bansal, R. C., Kong, S., Dong, Z. Y., Freitas, W., Mathur, H. D.   +6 more
openaire   +2 more sources

Germanane Quantum Dots Promote Metabolic Reprogramming of Immune Cells Toward Regulatory T Cells and Suppress Inflammation In Vitro and In Vivo

Advanced Functional Materials, EarlyView.
Metabolic changes in immune cells direct the phenotype and function of the host immune system. Smart nanomaterials must target metabolic pathways to direct immune cell fate. This study reports the fabrication and first application of germanane quantum dots (GeHQDs) to modulate inflammation in vitro and in vivo.
Abhay Srivastava, Alireza Rafieerad, Weiang Yan, Keshav Narayan Alagarsamy, Qingdong Guan, Leena Regi Saleth, Michel Aliani, Sanjiv Dhingra   +7 more
wiley   +1 more source

The State of the Art of Generators for Wind Energy Conversion Systems

, 2006
International audienceWind Energy Conversion Systems (WECS) have become a focal point in the research of renewable energy sources. This paper provides then a comparative study of past and present generator technologies used in WECS.
Amirat, Yassine, Benbouzid, Mohamed, Bensaker, Bachir, Mangel, Hervé, Wamkeue, René   +4 more
core  

Quantitative Control Approach for Wind Turbine Generators to Provide Fast Frequency Response with Guarantee of Rotor Security

, 2017
Wind generation is expected to reach substantially higher levels of penetration in the near future. With the converter interface, the rotor inertia of doubly-fed induction generator (DFIG) based wind turbine generator is effectively decoupled from the ...
Tomsovic, Kevin, Wang, Siqi
core   +1 more source

Fault ride-through of doubly-fed induction generator with converter protection schemes [PDF]

, 2008
This paper from the point view of wind farm fault ride-through (FRT) capability, discusses the performance of converter protection schemes to it. Different resistor protection methods are summarized and then a new combined protection with crowbar (CB ...
Dorrell, DG, Fletcher, JE, Yang, J
core   +1 more source

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

Advanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang, Zhenbin Wang, Mirjana Dimitrievska, Miloš Baljozović, Yongping Gan, Pardis Adams, Sanghyun Bae, Thomas Moehl, Wenzhe Niu, Xiang jiu Guan, S. David Tilley   +10 more
wiley   +1 more source

Controlador De Corrente Preditivo Contínuo Com Anti-Windup Aplicado A Um Sistema De Geração Eólico Baseado Em DFIG

Eletrônica de Potência, 2017
Este artigo apresenta uma nova estratégia de controle preditivo contínuo aplicado à malha de corrente elétrica do rotor de um sistema de geração eólico baseado no gerador de indução duplamente alimentado. O projeto do controlador é realizado a partir do
Samuel Vieira Dias, Tobias Rafael Fernandes Neto, Laurinda Lúcia Nogueira dos Reis, Bismark Claure Torrico, José Carlos Teles Campos   +4 more
doaj   +1 more source

Power control of variable speed wind turbine based on doubly fed induction generator using indirect field‐oriented control with fuzzy logic controllers for performance optimization

Energy Science & Engineering, 2018
The main objective of this study is to improve the energy quality extracted by variable speed wind turbine based on doubly fed induction generator. First, the dynamic modeling of different parts of the system is presented.
O. Zamzoum, Youness El Mourabit, Mustapha Errouha, A. Derouich, A. El Ghzizal   +4 more
semanticscholar   +1 more source

Bioinspired Stabilization of Fluorescent Au@SiO2 Tracers for Multimodal Biological Imaging

Advanced Functional Materials, EarlyView.
This study demonstrates a bioinspired stabilization strategy for fluorescent gold‐silica nanoparticles. Inspired by natural biosilica maturation, high‐temperature calcination transforms the silica shells, preventing dissolution in cell culture media and intracellular environments.
Wang Sik Lee, Henry Lee, Patricia Taladriz‐Blanco, Dimitri Vanhecke, Barbara Rothen‐Rutishauser, Alke Petri‐Fink   +5 more
wiley   +1 more source