Results 81 to 90 of about 31,230 (353)

Transient characterization and amplitude-phase compensation control for GFM-DFIG considering grid voltage phase jump

International Journal of Electrical Power & Energy Systems
The grid-forming doubly-fed induction generator possesses the ability to construct voltage and frequency. However, under grid fault conditions, it encounters issues such as transient instability, fault overcurrent, and insufficient reactive power support.
Pingjuan Ge, Ruitong Mao, Hailiang Xu, Yishuo Yang   +3 more
doaj   +1 more source

Control of Variable Speed Wind Turbines with Doubly Fed Asynchronous Generators for Stand-Alone Applications

Energies, 2017
This paper addresses the design and implementation of a novel control of a variable speed wind turbine with doubly fed induction generator for stand-alone applications.
Santiago Arnaltes, Jose Luis Rodriguez-Amenedo, Miguel E. Montilla-DJesus   +2 more
doaj   +1 more source

Continuous‐Flow Photocatalytic Degradation of Glyphosate and Aminomethylphosphonic Acid Under Simulated Sunlight with TiO2‐Coated Poly(vinylidene fluoride) Membrane

Advanced Functional Materials, EarlyView.
Glyphosate (GLY) and its primary metabolite, aminomethylphosphonic acid (AMPA), are photodegraded using a poly(vinylidene fluoride) membrane with immobilized titanium dioxide (PVDF‐TiO2) in a continuous flow‐through operation under solar light. At optimized conditions, the PVDF‐TiO2 membrane achieved 95% GLY and 80% AMPA removal with •O2− as the ...
Phuong B. Trinh, Siqi Liu, Nurul F. Himma, Béla Fiser, Andrea I. Schäfer   +4 more
wiley   +1 more source

Wind-diesel generation using doubly fed induction machines

IEEE Transactions on Energy Conversion, 2008
1
Pena, Ruben, Cardenas, Roberto, Proboste, Jose, Clare, Jon, Asher, Greg   +4 more
openaire   +4 more sources

Experimental and finite element studies of a 250 kW brushless doubly fed induction generator

The Journal of Engineering, 2019
This study studies, using experimentally verified finite element (FE) analysis, various performance measures of the brushless doubly fed induction generator (BDFIG) when magnetic wedges are used for closing stator open slots.
Salman Abdi, Ehsan Abdi, Richard McMahon
doaj   +1 more source

Wind turbine control design to enhance the fault ride-through capability [PDF]

, 2011
This paper presents a control strategy for wind turbines to enhance their fault ride-through capability. The controller design is based on pitch controlled variable speed wind turbine equipped with doubly-fed induction generator (DFIG).
Anaya-Lara, O., Leithead, W. E., Zhang, F.   +2 more
core   +1 more source

Grid Ancillary Services From Doubly Fed Induction Generator-Based Wind Energy Conversion System: A Review

IEEE Access, 2019
Modern electrical grids face serious challenges to maintain healthy operational conditions. The nominal voltage and frequency, for instance, are affected by huge load changes and renewable energy integration.
Mahdi Debouza, A. Al‐Durra
semanticscholar   +1 more source

Microporous Microgel Assemblies Facilitating the Recruitment and Osteogenic Differentiation of Progenitor Cells for Bone Regeneration

Advanced Functional Materials, EarlyView.
There is a significant need for biomaterials with well‐defined stability and bioactivity to support tissue regeneration. In this study, we developed a tunable microgel platform that enables the decoupling of stiffness from porosity, thereby promoting bone regeneration.
Silvia Pravato, Haishuo Guan, Bianca M. Carrara, Mira Jacobs, Matteo Monticelli, Lukas Moser, Thomas Moragues, Andrew J. deMello, Tomaso Zambelli, Martin Ehrbar   +9 more
wiley   +1 more source

Performance study and analysis between vector control and direct power control for DFIG based wind energy system

International Journal of Energetica, 2021
This paper concentrates on analyzing the performance of the two most important techniques of independent active and reactive power control of the doubly-fed induction generator used in a variable speed wind power conversion system. In the first technique,
Gufran Nurettin, Ata Sevinç
doaj  

System frequency regulation in doubly fed induction generators

International Journal of Electrical Power & Energy Systems, 2012
Abstract The conventional decoupling controls of variable-speed doubly fed wind turbines provide minimal support to the regulation of system frequency. The characteristics of doubly fed induction generator (DFIG) wind turbines and conventional power plans are compared, and the contributions of DFIG to system inertial response and frequency regulation
Xue Yingcheng, Tai Nengling
openaire   +1 more source