Results 91 to 100 of about 15,722 (309)

Full- & Reduced-Order State-Space Modeling of Wind Turbine Systems with Permanent-Magnet Synchronous Generator [PDF]

, 2018
Wind energy is an integral part of nowadays energy supply and one of the fastest growing sources of electricity in the world today. Accurate models for wind energy conversion systems (WECSs) are of key interest for the analysis and control design of ...
Hackl, Christoph M., Hohmann, Sören, Jané-Soneira, Pol, Pfeifer, Martin, Schechner, Korbinian   +4 more
core   +3 more sources

MRAS Observers for Sensorless Control of Doubly-Fed Induction Generators

IEEE Transactions on Power Electronics, 2008
This paper addresses the analysis and performance of several model reference adaptive system (MRAS) observers for sensorless vector control of doubly-fed induction machines. Small signal models allow the formal analysis of the observers for a given dynamic.
Cardenas, Roberto, Pena, Ruben, Clare, Jon, Asher, Greg, Proboste, Jose   +4 more
openaire   +3 more sources

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

Control of a wind energy conversion system based on brushless doubly fed induction generator

Revue des Énergies Renouvelables, 2014
This paper discusses the control a new topology of a brushless doubly-fed induction generator (BDFIG) using back-to-back PWM converters. The goal of BDFIG control is to achieve a similar dynamic performance to the doubly fed induction generator (DFIG ...
Z. Tir, R. Abdessemed
doaj  

Synchronizing the Osteochondral Regeneration Process through Spatial Patterning of Stable and Hypertrophic Cartilage Organoids

Advanced Materials, EarlyView.
Zonated osteochondral assembloid implants are engineered through scaffold‐free spatial assembly of induced pluripotent stem cell (iPSC)‐derived chondrocyte organoids and periosteum‐derived osteogenic organoids. Implanted into full‐thickness rat osteochondral defects, they promote hyaline‐like cartilage repair, support subchondral bone formation with ...
Liuqi Peng, Isaak Decoene, Hanna Svitina, Ioannis Papantoniou   +3 more
wiley   +1 more source

Analysis and NN-based control of doubly fed induction generator in wind power generation [PDF]

, 2009
With the increasing size of wind power generation it is required to perform power system stability analysis that uses dynamic wind generator models.
Carvalho, Adriano, Gonçalves, Henrique, Martins, António A., Soares, Orlando   +3 more
core   +2 more sources

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, Córcoles López, Felipe, Pedra Durán, Joaquim   +2 more
openaire   +3 more sources

Assembling a True “Olympic Gel” From over 16 000 Combinatorial DNA Rings

Advanced Materials, EarlyView.
Olympic gels are an elusive class of soft matter, consisting of molecular networks held together purely by mechanically interlocked rings. Their topological structure promises unique properties and functions, but their synthesis has proven notoriously difficult.
Sarah K. Speed, Yu‐Hsuan Peng, Azra Atabay, Krishna Gupta, Toni Müller, Carolin Fischer, Ilka M. Hermes, Jens‐Uwe Sommer, Michael Lang, Elisha Krieg   +9 more
wiley   +1 more source

Doubly Fed Induction Generator: Grid Integration and Performance Analysis [PDF]

E3S Web of Conferences
Renewable energy sources are emerging to replace conventional energy sources in the energy mix as a result of the growing demand for power and the constraints of existing energy sources. With technological advancements, wind energy has become a promising
Gangikunta Manohar, Gurram Janardhan, Kumar Kar Rajib, ASS Murugan, Kumar P Rajesh   +4 more
doaj   +1 more source

Modeling and Control of a Marine Current Turbine Driven Doubly-Fed Induction Generator [PDF]

, 2014
This paper deals with the modeling and the control of a variable speed DFIG-based marine current turbine with and without tidal current speed sensor.
BENBOUZID, Mohamed, BENELGHALI, Seifeddine, CHARPENTIER, Jean-Frederic   +2 more
core   +2 more sources