Results 71 to 80 of about 1,633 (266)
Doubly Fed Induction Generator Subject to Symmetrical Voltage Sags
IEEE Transactions on Energy Conversion, 2011 The aim of this paper is to analyze the dynamic behavior of the doubly fed induction generator (DFIG) subject to symmetrical voltage sags caused by three-phase faults. A simple control algorithm is considered and assumed ideal: the rotor current irf in the synchronous reference frame is kept constant.
Rolán Blanco, Alejandro +2 more
openaire +3 more sources
Advanced Materials, EarlyView.A hierarchical hydrogel evaporator with a thin, porous photothermal layer of fused core–shell carbon‐polymer nanospheres enables ultrafast interfacial solar evaporation with minimized heat loss and sufficient water supply. Directional advection‐dominated brine transport, coupled with Marangoni‐driven interfacial flow, drives salt away from the active ...
Haokun Shen +11 more
wiley +1 more source
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 +4 more
doaj +1 more source
Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes
Advanced Materials Technologies, EarlyView.We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard +7 more
wiley +1 more source
Modeling and control of the doubly fed induction generator wind turbine
Simulation Modelling Practice and Theory, 2010 The present paper deals with the modeling of wind turbine generation systems. The model of a doubly fed induction generator, along with the corresponding converter, crow bar protection and electrical grid is described. The different level control strategies both in normal operation and under voltage dig conditions are discussed, including speed control,
Adrià Junyent-Ferré +4 more
openaire +3 more sources
Advanced Materials Technologies, EarlyView.Flexible silicon carbide (SiC) microelectrode arrays enable high‐fidelity, multichannel cell extracellular recording and precise localized ablation. SiC has been extensively evaluated to persist long‐term in chronic physiological conditions while remaining robust, with excellent electrical and electrochemical stability.
Minh Anh Huynh +4 more
wiley +1 more source
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 +3 more
doaj +1 more source
A review of swarm-based metaheuristic optimization techniques and their application to doubly fed induction generator. [PDF]
Heliyon, 2022 Reddy K, Saha AK.
europepmc +1 more source
Advanced Optical Materials, EarlyView.A theoretical model is developed to visualize three‐dimensional refractive index profiles in transmission holographic gratings. In this work, it is applied to photopolymerizable hydrogels, enabling detailed analysis of the internal structure of recorded holograms and their evolution under different degradation conditions.
Belén Nieto‐Rodríguez +4 more
wiley +1 more source
Research on the Generating Efficiency Improvement of Doubly Fed Wind Turbines
Kongzhi Yu Xinxi Jishu, 2017 In order to improve the competitiveness of doubly fed wind turbines in low wind speed areas, it proposed a method to improve the generating efficiency of doubly fed wind turbines by shorting out the stator of doubly fed generator and making it work in ...
ZHAO Yanfeng +4 more
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