Results 21 to 30 of about 52,861 (224)

A Comprehensive Power Flow Approach for Multi-terminal VSC-HVDC System Considering Cross-regional Primary Frequency Responses

Journal of Modern Power Systems and Clean Energy, 2020
For the planning, operation and control of multiterminal voltage source converter (VSC) based high-voltage direct current (HVDC) (VSC-MTDC) systems, an accurate power flow formulation is a key starting point.
Yida Ye, Ying Qiao, Le Xie, Zongxiang Lu
doaj   +1 more source

Topology assessment for 3 + 3 terminal offshore DC grid considering DC fault management [PDF]

, 2014
Peer ...
Jovcic, Dragan, Nguefeu, S., Taherbaneh, Mohsen, Taisne, J.P.   +3 more
core   +1 more source

Elective Tracheal Intubation With the VieScope—A Prospective Randomized Non-inferiority Pilot Study (VieScOP-Trial)

Frontiers in Medicine, 2022
BackgroundTracheal intubation is commonly performed after direct laryngoscopy using Macintosh laryngoscopes (MacL), but visualization of the larynx may be inadequate.
Martin Petzoldt, Yasmin Engels, Zohal Popal, Pischtaz A. Tariparast, Phillip B. Sasu, Andrés Brockmann, Mark A. Punke, Jörn Grensemann   +7 more
doaj   +1 more source

Design and implementation of an Inverse Neural Network Controller applied To VSC Converter for active and reactive Power Flow, based on regions of work

Revista Facultad de Ingeniería Universidad de Antioquia, 2014
Los Convertidores de Fuente de Tensión (VSC) son usualmente usados con inversores o convertidores en sistemas de transmisión de Alta Tensión de Corriente Continua (HVDC).
José Guillermo Guarnizo Marin, Nelson Díaz Aldana, César Trujillo Rodríguez   +2 more
doaj   +3 more sources

Coupling Influence on the dq Impedance Stability Analysis for the Three-Phase Grid-Connected Inverter

Energies, 2019
The dq impedance stability analysis for a grid-connected current-control inverter is based on the impedance ratio matrix. However, the coupled matrix brings difficulties in deriving its eigenvalues for the analysis based on the general Nyquist criterion.
Chuanyue Li, Taoufik Qoria, Frederic Colas, Jun Liang, Wenlong Ming, Francois Gruson, Xavier Guillaud   +6 more
doaj   +1 more source

New design of variable structure control based on lightning search algorithm for nuclear reactor power system considering load-following operation

Nuclear Engineering and Technology, 2020
Reactor control is a standout amongst the most vital issues in the nuclear power plant. In this paper, the optimal design of variable structure controller (VSC) based on the lightning search algorithm (LSA) is proposed for a nuclear reactor power system.
M. Elsisi, H. Abdelfattah
doaj   +1 more source

Mechanism analysis and mitigation strategies for oscillatory instability of synchronous generators affected by voltage source converters

IET Generation, Transmission & Distribution, 2022
The electric power systems are experiencing a transformation to be characterized by power electronic devices, for example, voltage source converters (VSCs).
Yicheng Xue, Guoteng Wang, Zheren Zhang, Zheng Xu   +3 more
doaj   +1 more source

Available and novel plant-based carbon dots derived from Vaccaria Semen carbonisata alleviates liver fibrosis

Frontiers in Molecular Biosciences, 2023
Background: Liver fibrosis represents an intermediate stage in the progression of liver disease, and as of now, there exists no established clinical therapy for effective antifibrotic treatment.Purpose: Our aim is to explore the impact of Carbon dots ...
Yafang Zhao, Ertong Dai, Liyang Dong, Jinye Yuan, Yusheng Zhao, Tong Wu, Ruolan Kong, Menghan Li, Shuxian Wang, Long Zhou, Yingxin Yang, Hui Kong, Yan Zhao, Huihua Qu   +13 more
doaj   +1 more source

Features Transmission Ethnocultural Specificity of the Folklore Text (on the Basis of Funds Fabulous Prose Ossetians)

Oriental Studies, 2018
With evidence from Ossetian fairy tale prose (magic fairy tales), the present work is the first attempt to consider expression of distinctive national components and features in translated texts. In addition to proverbs, sayings, phraseological units and
E. B. Dzaparova, D. V. Sokaeva
doaj   +1 more source

Transient Instability Mechanism and Control Method of PLL-Based Grid-Connected VSC

Zhongguo dianli, 2022
The transient instability mechanism and control method of grid-following control voltage source converter (VSC) are comprehensively studied to solve the transient instability of PLL (phase locked loop)-based VSC with consideration of the influence of ...
Zheng CHEN, Pengfei HU, Liyu DAI, Chaohui ZHOU, Yanxue YU, Xiaoqing XIU   +5 more
doaj   +1 more source