Results 31 to 40 of about 1,761,219 (294)

Passivity Enhancement Strategy of Grid-Connected Inverter System Based on the Adaptive Active Damper

open access: yesFrontiers in Energy Research, 2022
The grid-connected inverter system may be unstable when connected to a weak grid, and installing an active damper as a virtual resistor at the PCC is convenient for stabilizing the system.
Chen Shi, Jianfeng Zhao
doaj   +1 more source

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

The Energy Processing by Power Electronics and its Impact on Power Quality [PDF]

open access: yes, 2012
This paper discusses the electrical architectures adopted in wind turbines and its impact on the harmonic flux at the connected electric network. The integration of wind electric generators with the power grid needs energy processing by power electronics.
J.E. Rocha   +3 more
core   +2 more sources

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

Simulation and Implementation of Grid-connected Inverters

open access: yesInternational Journal of Computer Applications, 2012
Solar, wind and hydro are renewable energy sources that are seen as reliable alternatives to conventional energy sources such as oil or natural gas. However, the efficiency and the performance of renewable energy systems are still under development. Consequently, the control structures of the gridconnected inverter as an important section for energy ...
Ahmed Alshazly   +2 more
openaire   +1 more source

Development of 10 kW Three-Phase Grid Connected Inverter [PDF]

open access: yesAutomatika : časopis za automatiku, mjerenje, elektroniku, računarstvo i komunikacije, 2016
In this paper, modeling, simulation and experimental study of a 10 kW three-phase grid connected inverter are presented. The mathematical model of the system is derived, and characteristic curves of the system are obtained in MATLAB with m-file for various switching frequencies, dc-link voltages and filter inductance values.
İşen, Evren   +2 more
openaire   +4 more sources

Is an Apple an Orange? A Large Language Model Benchmark for Candidate Term Extraction and Subclass Decisions Against Upper Ontologies in Engineering and Materials Science

open access: yesAdvanced Engineering Materials, EarlyView.
Building machine‐readable vocabularies for materials science is slow, expert‐driven work. This study benchmarks 13 large language models on two of its first steps: finding candidate terms in engineering articles and deciding where they belong in a class hierarchy.
Thomas Bjarsch   +3 more
wiley   +1 more source

Symmetry‐Guided Multifunctional Acoustic System Based on Mechanically Actuated Sonic Crystals

open access: yesAdvanced Engineering Materials, EarlyView.
This study presents the design, simulation, and experimental validation of amultifunctional acoustic metamaterial based on rotationally engineered sonic crystals.By tuning cylinder orientations, controllable band gaps and six distinct functionalities—including switching, topological insulation, beam splitting, and logic operations—areachieved ...
Yuanyan Zhao   +2 more
wiley   +1 more source

Development of a grid emulator for network integration studies [PDF]

open access: yes, 2014
Includes bibliographical references.The economic and environmental side effects of fossil fuels have forced governments and authorities to investigate sustainable solutions. Main interest is focused on environment friendly benefits, provided by renewable
Khan, Akrama
core   +1 more source

Grid-connected transformerless single-phase photovoltaic inverters: an evaluation on DC current injection and PV array voltage fluctuation [PDF]

open access: yes, 2009
A number of political, environmental and technical factors have resulted in the increase of implementation of renewable technology including grid connected photovoltaic inverters.
Morris, Claude
core  

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