Results 41 to 50 of about 19,423 (223)
Research and application of a power-flow-calculation method in multiterminal VSC-HVDC power grid
Global Energy Interconnection, 2019 For demonstrating a multiterminal voltage-source converter (VSC)-based high-voltage DC (HVDC) (VSC- HVDC) project, this study puts forward a technical route for calculating the power flow in a 500-kV VSC-HVDC power grid in comparison with that of an AC ...
Linlin Wu +6 more
doaj +1 more source
Advanced Science, EarlyView.Sinapic acid, a bio‐derived phytophenol, serves as a multifunctional additive for methylammonium (MA)‐free Sn─Pb perovskites, coordinating with Sn2+/Pb2+ to regulate crystallization and mitigate defects. Its electron‐rich groups suppress Sn oxidation and passivate deep traps, improving band alignment and reducing VOC losses. Resulting devices achieve a
Seojun Lee +12 more
wiley +1 more source
A Computational Approach for Biomimetic Design of Liver‐On‐A‐Chip
Advanced Intelligent Discovery, EarlyView.A biomimetic liver‐on‐a‐chip with antiparallel perfusion was designed using COMSOL‐guided simulation to replicate hepatic acinus transport. Full‐scale modelling revealed diffusion‐dominated, length‐dependent nutrient gradients and low‐shear conditions.
Zhenxu Yang +9 more
wiley +1 more source
Analysis of harmonics in subsea power transmission cables used in VSC-HVDC transmission systems operating under steady-state conditions [PDF]
, 2007 Subsea power cables are a critical component of a voltage-source converter-high-voltage direct current (VSC-HVDC) transmission system in any offshore electrical power scheme.
Bucknall, R.W.G., Chien, C.H.
core
Advanced Intelligent Systems, EarlyView.This work presents a magnetic bronchoscopy robot with a novel multi‐segment variable stiffness catheter. This catheter can not only move flexibly in the narrow bronchi but also harden according to the need to provide support. Combined with remote wireless magnetic field drive, it provides a more precise and effective solution for biopsy of deep lung ...
Shucong Yin +10 more
wiley +1 more source
Variance‐Empirical Mode Decomposition Method for Fault Detection in MMC‐HVDC Transmission Lines
Energy Science &Engineering, EarlyView.A variance‐embedded empirical mode decomposition (VEMD) method is proposed for fast and accurate fault detection in MMC‐HVDC transmission lines. By combining variance analysis with EMD, the method reliably detects various faults without communication links and remains robust to noise and non‐fault transients.
Seyed Amir Hosseini, Behrooz Taheri
wiley +1 more source
Active and reactive power flow regulation for a grid connected vsc based on fuzzy controllers
Revista Facultad de Ingeniería Universidad de Antioquia, 2013 Voltage Source Converters (VSC) are one of the most used converters in distributed generation application and HVDC systems, since a VSC can operate either as inverter or rectifier.
Nelson Díaz Aldana +2 more
doaj +1 more source
A timely switch fault ride-through method for VSC-HVDC system
电力工程技术, 2022 In order to achieve the fault through of voltage source converter-based high voltage direct current (VSC-HVDC)system during alternating current (AC) system asymmetric faults and keep stability of the impedance at steadystate, a timely switch fault ...
WANG Ke +5 more
doaj +1 more source
Mining Oral Probiotics Based on Their Pathogen Inhibition and Deodorization Roles
Food Bioengineering, EarlyView.A promising oral probiotic strain Streptococcus salivarius MY‐6 stood out from 41 candidate lactic acid bacteria through the high‐throughput strategy based on its inhibitions of the growth and biofilm formation of the main oral pathogens Fusobacterium nucleatum and Porphyromonas gingivalis, as well as its elimination of oral malodor‐associated ...
Yaao Chen +8 more
wiley +1 more source
The Journal of Engineering, 2019 Wind farms integrated to an AC power system through a voltage source converter-based high-voltage direct current system (VSC-HVDC) are viewed as islanded wind farms. The wind farm side converter of VSC-HVDC maintains a constant frequency of the wind farm
Yan Li +3 more
doaj +1 more source