Results 41 to 50 of about 54,052 (304)

Resonant suppression strategy of impedance remodeling for multi-inverter grid-connected system in weak grid

open access: yes电力工程技术
In weak grid, a multi-inverter grid-connected system may be simultaneously affected by large grid impedance and background harmonics. The interaction between inverter and grid is enhanced by the large grid impedance, resulting in resonance problems ...
ZHANG Shicong   +4 more
doaj   +1 more source

Current-limiting droop controller with fault-ride-through capability for grid-tied inverters [PDF]

open access: yes, 2017
In this paper, the recently proposed current-limiting droop (CLD) controller for grid-connected inverters is enhanced in order to comply with the Fault-Ride-Through (FRT) requirements set by the Grid Code under grid voltage sags.
Konstantopoulos, G.C.   +3 more
core   +1 more source

Master–slave current regulation of an LCL-filter-based grid-connected inverter under variable grid condition

open access: yesThe Journal of Engineering, 2019
To ease the heavy burden of inverter control, including line current regulation, harmonic current suppression, filter resonance suppression, grid distortion suppression, phase locked loop etc., the study proposes a master–slave current regulation method ...
Yuanbin He   +4 more
doaj   +1 more source

Experiment on Power Quality of PV-grid System at FKEE UMP [PDF]

open access: yes, 2012
This paper presents experiments of PV-grid system operation for a day light consisting of Photovoltaic (PV) – Inverter system as the renewable source connected to a network of induction motor as the load.
Akorede, Mudathir Funsho   +3 more
core  

Harmonic Stability Assessment for Multiparalleled, Grid-Connected Inverters [PDF]

open access: yesIEEE Transactions on Sustainable Energy, 2016
This paper investigates the harmonic interactions of current controllers in multi-paralleled grid-connected inverters. Potential harmonic instability phenomenon, which features oscillations above the fundamental frequency are evaluated by the impedance-based stability criterion.
Changwoo Yoon   +5 more
openaire   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, EarlyView.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

A novel single-phase inverter with distribution static compensator capability for wind applications [PDF]

open access: yes, 2013
The modular multilevel converter (MMC) is an attractive topology for HVDC/FACTS systems. In this paper a new single-phase MMC-based D-STATCOM inverter for grid connection is proposed.
Miller, Ruth Douglas, Sotoodeh, Pedram
core   +1 more source

Pentagonal 2D Altermagnets: Material Screening and Altermagnetic Tunneling Junction Device Application

open access: yesAdvanced Functional Materials, EarlyView.
From a database of 170 pentagonal 2D materials, 4 candidates exhibiting altermagnetic ordering are screened. Furthermore, the spin‐splitting and unconventional boundary states in the pentagonal 2D altermagnetic monolayer MnS2 are investigated. A MnS2‐based altermagnetic tunneling junction is designed and, through ab initio quantum transport simulations,
Jianhua Wang   +8 more
wiley   +1 more source

3D Multicellular Scaffold Based Model for Advancing Bone Disorder Research

open access: yesAdvanced Functional Materials, EarlyView.
A scalable 3D multicellular in vitro bone model engineered by integrating osteoblasts, osteoclasts, and endothelial cells on biodegradable scaffolds. The system recapitulates key features of human bone remodeling and disease pathology. As a proof of concept, the model mimics osteogenesis imperfecta, demonstrating its potential as a physiologically ...
Gali Guterman‐Ram   +5 more
wiley   +1 more source

Grid-Forming Control: Advancements towards 100% Inverter-Based Grids—A Review

open access: yesEnergies, 2023
Changes are being implemented in the electrical power grid to accommodate the increased penetration of renewable energy sources interfaced with grid-connected inverters.
Emmanuel Ebinyu   +4 more
doaj   +1 more source

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