Results 31 to 40 of about 512,442 (296)

Transition from Islanded to grid-connected mode of microgrids with voltage-based droop control [PDF]

open access: yes, 2013
Microgrids are able to provide a coordinated integration of the increasing share of distributed generation (DG) units in the network. The primary control of the DG units is generally performed by droop-based control algorithms that avoid communication ...
De Kooning, Jeroen   +3 more
core   +1 more source

Promising Grid-Forming VSC Control Schemes Toward Sustainable Power Systems: Comprehensive Review and Perspectives

open access: yesIEEE Access, 2022
Driven by environmental and economic aspects, the proliferation of renewable energy sources (RES) has been expanded in power systems worldwide. In this regard, the intermittent generation of such RESs (e.g., photovoltaic and wind farms) can cause several
Karar Mahmoud   +3 more
doaj   +1 more source

Generalized Multivariable Grid-Forming Control Design for Power Converters [PDF]

open access: yesIEEE Transactions on Smart Grid, 2022
The grid-forming converter is an important unit in the future power system with more inverter-interfaced generators. However, improving its performance is still a key challenge. This paper proposes a generalized architecture of the grid-forming converter from the view of multivariable feedback control.
Meng Chen   +5 more
openaire   +4 more sources

Improved Dual Closed-Loop Control for Modular Multilevel Converters Based on Voltage Drop on Grid Impedance [PDF]

open access: yesDianli jianshe
[Objective] As renewable power bases gradually expand from load centers to remote areas such as deep offshore, deserts, and barren lands, using grid-forming voltage source converter-based high voltage direct current (VSC-HVDC) transmission technology is ...
LIU Shan, LIU Qi, ZHU Lin, YAN Jun, CHI Chengbin, SUN Zengjie
doaj   +1 more source

Numerical analysis of the hydrodynamic behaviour of immiscible metallic alloys in twin-screw rheomixing process [PDF]

open access: yes, 2006
A numerical analysis by a VOF method is presented for studying the hydrodynamic mechanisms of the rheomixing process by a twin-screw extruder (TSE). The simplified flow field is established based on a systematic analysis of flow features of immiscible ...
Fan, Z, Tang, H, Wrobel, L C
core   +1 more source

Modeling and Control of Grid Forming Converters: A Systematic Review

open access: yesIEEE Access
In electrical power systems where the proportion of synchronous generators (SG) is gradually decreasing, grid-forming (GFM) converters need to be installed and controlled to meet all the system requirements that SGs have provided to date.
Macit Tozak   +3 more
doaj   +1 more source

A framework for digital sunken relief generation based on 3D geometric models [PDF]

open access: yes, 2012
Sunken relief is a special art form of sculpture whereby the depicted shapes are sunk into a given surface. This is traditionally created by laboriously carving materials such as stone.
A. Agrawal   +34 more
core   +1 more source

Grid-forming control for high-power inverters

open access: yes, 2022
La crisis medioambiental actual está potenciando el aumento de la demanda de fuentes renovables y sistemas de almacenamiento. La conexión de estas unidades de generación, que se realiza a través de inversores de alta potencia para minimizar costes, está causando el reemplazo completo de los generadores síncronos, dando lugar a que aparezcan más ...
openaire   +3 more sources

Boundary-induced nucleation control: A theoretical perspective

open access: yes, 2018
The pre-patterning of a substrate to create energetically more attractive or repulsive regions allows one to generate a variety of structures in physical vapor deposition experiments.
Buller, Oleg   +4 more
core   +1 more source

Exploiting metabolic adaptations to overcome dabrafenib treatment resistance in melanoma cells

open access: yesMolecular Oncology, EarlyView.
We show that dabrafenib‐resistant melanoma cells undergo mitochondrial remodeling, leading to elevated respiration and ROS production balanced by stronger antioxidant defenses. This altered redox state promotes survival despite mitochondrial damage but renders resistant cells highly vulnerable to ROS‐inducing compounds such as PEITC, highlighting redox
Silvia Eller   +17 more
wiley   +1 more source

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