Results 71 to 80 of about 453 (189)

Review and evaluation of control-based protection solutions for converter-dominated power systems [PDF]

, 2023
With the rapid and massive increase of converter-interfaced resources (e.g. renewable generation, HVDC systems, etc.), the dynamic behavior of future power systems is expected to change significantly and will be predominantly determined by converters ...
Cao, Shuxiu, Liu, Di, Booth, Campbell, Hong, Qiteng   +3 more
core  

How Surface Reconstruction Drives Heterogeneous Bulk Delithiation in Single‐Crystalline Ni‐Rich Layered Oxide Cathodes

Small Science, Volume 6, Issue 5, May 2026.
Through multi‐rate operando X‐ray diffraction and soft X‐ray absorption spectroscopy, we demonstrate how surface‐level changes in aged single‐crystalline Ni‐rich LiNixMnyCo1−x−yO2 particles can directly affect bulk Li‐ion diffusion. The effect of this phenomenon on the electrochemical performance is also quantified using single‐layer pouch cells under ...
Gaurav C. Pandey, Ashok S. Menon, Valeria Calani San Miguel, José J. Arroyo‐Gómez, Harry Gillions, Rebecca Sellers, Matthew J. W. Ogley, Eleni Fiamegkou, Satish Bolloju, Sahil Tippireddy, Mirian Garcia‐Fernandez, Steven Huband, Louis F. J. Piper   +12 more
wiley   +1 more source

Power Analysis Produced by Virtual Inertia in Single-Phase Grid-Forming Converters Under Frequency Events Intended for Bidirectional Battery Chargers

Energies
The widespread integration of renewable energy sources (RESs) into the grid through inertia-less power converters is reducing the overall system inertia leading to large frequency variations.
Erick Pantaleon, Jhonatan Paucara, Damián Sal y Rosas   +2 more
doaj   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

A fault current limiting control strategy for GFM converters based on directional current command

Zhejiang dianli, 2023
The grid-forming （GFM） control technology is instrumental in enabling converters to provide frequency and voltage support response akin to synchronous generators， thus bolstering the stability of the new power system. Nonetheless， a notable challenge lies in delivering grid support during fault current limiting.
WANG Nannan, ZOU Qiang, LU Yu, YAN Pengwei, TIAN Jie, ZHAN Changjiang   +5 more
openaire   +1 more source

Comparative Evaluation of Damping Control Strategies in GFM Converters: Insights for Wideband Oscillation Mitigation [PDF]

IEEE Transactions on Industry Applications
Grid-forming (GFM) converters with cascaded control loops might induce small-signal instability issues over a wide frequency range, and existing damping control strategies are usually designed and verified for oscillations in specific frequency bands, exhibiting limited integrity in wideband small-signal stability assessments.
Rui Kong, Subham Sahoo, Yubo Song, Frede Blaabjerg   +3 more
openaire   +2 more sources

Defect‐Engineered Nested Metallic Cu Clusters Enhance CO2 Photoreduction in Photothermal 2D Plasmonic CuSe

EcoEnergy, Volume 4, Issue 2, April 2026.
Solar‐driven photocatalytic CO2 conversion faces charge dynamics and spectral utilization limits. In this study, the nested Cu/CuSe heterostructure effectively enhances near‐infrared absorption, suppress charge carrier recombination, and improve CO production yield and selectivity through the photothermal–photocatalytic synergy. ABSTRACT Photocatalytic
Huaipeng Pang, Janobiddinkhuja Bahodurov, Tianxi Zhang, Minmin Gao, Weili Ong, Sergey M. Kozlov, Fan Lu Meng, Ghim Wei Ho   +7 more
wiley   +1 more source

A Comparative Large-Signal Stability Analysis of Grid-Following and Grid-Forming Converter [PDF]

This paper presents a comparative large-signal stability analysis of grid-following (GFL) and grid-forming (GFM) converters under significant grid disturbances.
Huang, Liang; id_orcid, Bakhshizadeh, Mohammad Kazem, Gao, Guoqing; id_orcid, Blaabjerg, Frede; id_orcid   +3 more
core   +1 more source

Freeze‐dried Lactobacillus spp. improved average daily liveweight gain and reduced methane intensity in growing lambs

Journal of the Science of Food and Agriculture, Volume 106, Issue 6, Page 3857-3865, April 2026.
Abstract BACKGROUND Direct fed microbials (DFM) are natural and safe enteric methane mitigants for ruminant livestock systems. While previous studies have demonstrated the effect of Lactobacillus spp. on methane mitigation, challenges remain in effectively delivering DFM in extensive grazing systems. The objective of this experiment was to evaluate the
Sreemol Suthan Nair, Stephanie K Muir, S Richard O Williams, Aodán S ó Neachtain, Subhash Chandra, Pablo S Alvarez‐Hess, Long Cheng, Joe L Jacobs   +7 more
wiley   +1 more source

An Adaptive Virtual-Impedance-Based Current-Limiting Method with the Functionality of Transient Stability Enhancement for Grid-Forming Converter [PDF]

Grid-forming (GFM) converters are regarded as the most promising solution for grid-connected converters of renewable energy due to their robustness against weak grids.
Xuekai Hu, Hao Li, Cunyue Pan, Zifan Li, Yingyu Liang   +4 more
core   +1 more source