Results 101 to 110 of about 1,054,199 (245)

Retos en materia de ciberseguridad en smart grids [PDF]

, 2020
Proceedings of: VII Congreso Smart Grids 2020 [Congreso Online]En el proceso de digitalización de las redes eléctricas hacia las smart grids, el aumento de comunicación entre los dispositivos que la componen extiende los retos a los que se enfrentan los ...
Pastrana Portillo, Sergio, Gálvez, Lucía, Ledo, Angel T., Amarís Duarte, Hortensia Elena, Turanzas, Jaime, Alonso Martínez, Mónica   +5 more
core   +1 more source

A Weak Node Identification Method for High-PPVG Power Grids Based on a Voltage Sensitivity and Probabilistic Risk Coupling Model

Journal of Applied Science and Engineering
Identifying weak nodes in power grids with a high proportion of photovoltaic generation (PPVG) often faces challenges such as reliance on single one-sided indicators, coupled subjective biases, and insufficient risk quantification.
Wei Yin, Jun Wang, Ming Tong, Zhijun Chen, Ke Zhang, Qian Hu, Meiqing Huang   +6 more
doaj   +1 more source

Programming Nanoscale Reaction Environments via Peptide Localization for Gold Nanoparticle Growth in Liposomal Nanoreactors

Advanced Functional Materials, EarlyView.
The liposome nanoreactor method enables uniform metal nanoparticle synthesis using the interior as a reaction environment. We demonstrate that peptide sequences and lipid compositions act as a functional molecular switch to control reaction environments in liposome nanoreactors.
Yuya Abe, Joseph Fox, Zabeada Aslam, Kevin Critchley, Stephen D. Evans, Mina Okochi, Masayoshi Tanaka   +6 more
wiley   +1 more source

Engineering Local Polar Frustration in Lead‐Free Dielectric Ceramics for Ultrahigh Normalized Energy Storage Performance

Advanced Functional Materials, EarlyView.
Local polar frustration is engineered to stabilize an ergodic relaxer through nanoscale multiphase coexistence, suppressing long‐range ferroelectric order while preserving high polarization. This strategy delivers ultrahigh low‐field normalized energy density (Wa >0.020 mC cm−2), exceptional thermal stability, and a transferable design principle for ...
Hareem Zubairi, Muhammad Wasim, Songhao Fu, Xiaojiao Liu, Annette K Kleppe, Zhilun Lu, Antonio Feteira, Diming Xu, Joseph C.A. Prentice, Ge Wang   +9 more
wiley   +1 more source

Freeze‐Thaw Engineered Dual Conductivity Polymeric Binder Stabilizes Large‐Volume‐Change Lithium–Ion Battery Anodes

Advanced Functional Materials, EarlyView.
This work developed an all‐aqueous freeze‐thaw strategy to create a dual‐conductive PVA/P3KBT binder for high volume‐change lithium–ion battery anodes. The resulting binder system strengthens the electrode structure, supports ion and electron transport, and accommodates repeated volume changes, reducing cracking and improving long‐term cycling ...
Haoze Ren, Jeremy Wang, Han Li, Marie Francoise C. Millares, Hao Guo, Sz‐Chian Liou, Siyu Qin, Ryan Thorpe, Melissa A. Guercio, Dali Yang, Lu Ma, Siyu Wu, Ruipeng Li, Esther S. Takeuchi, Amy C. Marschilok, Shan Yan, Kenneth J. Takeuchi, Elsa Reichmanis   +17 more
wiley   +1 more source

Stability assessment of inverter‐based renewable energy sources integrated to weak grids

IET Energy Systems Integration
The worldwide electricity network is undergoing a crucial transformation, shifting from traditional synchronous generators to inverter‐based renewable energy sources (IRESs).
M. I. Saleem, S. Saha, U. Izhar, L. Ang
doaj   +1 more source

Robust μ-Synthesis Grid-Side Control for Inverter-Based Resources in Weak Grids

Energies
With the increasing penetration of inverter-based resources (IBRs), modern power systems are experiencing undesirable dynamics, such as sub-synchronous oscillations in weak grids.
Woo-Jung Kim, Yu-Seok Lee, Yeong-Han Chun   +2 more
doaj   +1 more source

Unified Phase‐Field Framework for Antiferroelectric, Ferroelectric and Dielectric Phases: Application to HZO Thin Films

Advanced Functional Materials, EarlyView.
HfxZr1−xO2${\rm Hf}_x{\rm Zr}_{1-x}{\rm O}_2$ offers CMOS‐compatible nanoscale ferroelectricity yet suffers from a high Ec${\rm E}_c$ demanding large operating voltages. A unified phase‐field framework spanning AFE/FE/DE phases shows how FE grains soften neighboring AFE grains over λ$\lambda$ ≈$\approx$ 22–37 nm.
P. Pankaj, Sandeep Sugathan, Jiyoung Kim, Si Joon Kim, Pil‐Ryung Cha   +4 more
wiley   +1 more source

Grid-Forming Voltage-Source Inverter for Hybrid Wind-Solar Systems Interfacing Weak Grids

IEEE Open Journal of Power Electronics
This paper presents a grid-forming (GFM) voltage-source inverter (VSI) with direct current regulation for a hybrid wind-solar generator, enabling stable operation at very weak grid conditions and under faults.
Amr Radwan, Mahmoud A. Elshenawy, Yasser Abdel-Rady I. Mohamed, Ehab Fahmy El-Saadany   +3 more
doaj   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source