Results 131 to 140 of about 14,228,214 (289)

Analytical Inertia Identification of Doubly Fed Wind Farm with Limited Control Information Based on Symbolic Regression

Applied Sciences
The integration of large-scale wind power clusters significantly reduces the inertia level of the power system, increasing the risk of frequency instability. Accurately assessing the equivalent virtual inertia of wind farms is critical for grid stability.
Mengxuan Shi, Yang Li, Xingyu Shi, Dejun Shao, Mujie Zhang, Duange Guo, Yijia Cao   +6 more
doaj   +1 more source

Review of CFD modelling techniques for single‐phase and multiphase flow in static mixers

The Canadian Journal of Chemical Engineering, EarlyView.
This review synthesizes computational fluid dynamics (CFD) approaches for static mixers, linking hydrodynamics to pressure drop, particle/droplet distributions, mixing metrics, and heat‐transfer performance to guide modelling choices and design decisions. Abstract Static mixers enable compact and low‐energy intensification.
Jussan Jaeger, Sálvio Lima de Carvalho Neto, Silvio Edegar Weschenfelder, Glaucia Rodrigues Vieira de Almeida da Fonseca, Maria de Fátima Rodrigues da Cunha, Selene Maria Arruda Guelli Ulson de Souza, Evandro Balestrin, Adriano da Silva   +7 more
wiley   +1 more source

Research on a virtual inertia control strategy for a wind-Storage combined power generation system based on model predictive control

Systems Science & Control Engineering
This research addresses the issue of low grid inertia in wind energy systems by proposing an improved control strategy that integrates model predictive control (MPC) with virtual synchronous generator (VSG) control.
Wenqin Song, Xumin Liu, Guojun Yang, Zhuxiu Wang, Ding Li, Sheng Xue   +5 more
doaj   +1 more source

Study of Virtual Inertia and its impacts on Power Oscillations [PDF]

This study explores the changing dynamics of power systems in the context of the global shift to renewable energy, focusing on inertia and its influence on frequency stability.
Ibrar, Muhammad
core  

Stability Analysis and Improvement of Three-Phase Grid-Connected Power Converters with Virtual Inertia Control

, 2019
The lack of inertia issue challenges the frequency control and stability of small-scale modern power systems. To alleviate adverse effects from inertia reduction, three-phase grid-connected power converters are increasingly being used to provide virtual ...
Li, Hongchang, Lin, Pengfeng, Yi Tang, Pengfeng Lin, Jingyang Fang, Yang, Yongheng; id_orcid, Yongheng Yang, Fang, Jingyang, Tang, Yi, Hongchang Li   +9 more
core   +1 more source

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

Deep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu, Tao Li, Ruiqi Yuan, Yue Li, Bingni Wu, Bo Liu, Zhengding Deng, Galindo Rubén, Fausto Molina‐Gómez   +8 more
wiley   +1 more source

Seismic analysis and design of tunnels within fault ground: A review

Deep Underground Science and Engineering, EarlyView.
The research methods of seismic response of tunnels within fault ground, including field investigations, analytical solutions, physical experiments, and numerical simulations, and seismic countermeasures are discussed. The present study examines the shortcomings and limitations of the current research and design, and puts forward proposals for future ...
Xingda Wang, Yujing Jiang, Xuepeng Zhang, Yuyong Jiao, Ningbo Li, Xiao Wang, Bo Li   +6 more
wiley   +1 more source

Heterogeneous Single/Dual‐Atom Electrocatalysts in Lithium–Sulfur Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review summarizes recent advances in single‐atom and dual‐atom electrocatalysts for high‐performance lithium–sulfur batteries. The text systematically covers the classification of catalysts by active metal centers, key synthesis methods, in situ characterization for mechanistic insights, and electrocatalytic mechanisms.
Wenbin Li, Ying Xin, Zhaoliang Zhang, Jin Wang   +3 more
wiley   +1 more source

Prepare, don't scare: Rethinking cognitive readiness before epilepsy surgery

Epilepsia Open, EarlyView.
Abstract Epilepsy surgery is an effective but underutilized treatment for drug‐resistant epilepsy, and concerns about postsurgical cognitive change are a prominent barrier. Refinements in surgical technique can reduce cognitive impact, but cognitive change cannot always be avoided, and approaches carrying lower cognitive risk are often less effective ...
Kayela Arrotta, Sofia Lesica, Hien Luu, Sallie Baxendale   +3 more
wiley   +1 more source

Real-Time Inertia Estimation and Adaptive-Model-Predictive-Control-Based Virtual Inertia Support for Frequency Control in Low-Inertia Systems

This study presents adaptive virtual inertia strategy supported by a model-predictive-control (MPC)-based real-time inertia estimation method. The proposed approach aims to mitigate frequency stability problems caused by low inertia in isolated power ...
Cenk Andiç, Andiç, Cenk
core   +1 more source