Results 11 to 20 of about 52,861 (224)

Unified reference controller for flexible primary control and inertia sharing in multi-terminal voltage source converter-HVDC grids [PDF]

open access: yes, 2016
Multi-terminal dc (MTDC) grids are expected to be built and experience rapid expansion in the near future as they have emerged as a competitive solution for transmitting offshore wind generation and overlaying their ac counterpart. The concept of inertia
Candela García, José Ignacio   +4 more
core   +2 more sources

PERFORMANCE COMPARISON OF MULTICELL SERIES AND NPC MULTILEVEL CONVERTERS FOR A STATCOM

open access: yesElectrical engineering & Electromechanics, 2019
. In this paper, we present a comparative study of the performances of the multicells series and the Neutral-Point-Clamped (NPC) three-level converters used at synchronous static compensators (STATCOM) for the control of the voltage at a point of the ...
S. Belakehal, A. Djellad, R. Chenni
doaj   +1 more source

Sub-THz Waveguide Spectroscopy of Coating Materials for Particle Accelerators

open access: yesCondensed Matter, 2020
The electromagnetic characterisation of different materials for the inner wall coating of beam pipes is a long-standing problem in accelerator physics, regardless the purpose they are used for, since their presence may affect in an unpredictable way the ...
Andrea Passarelli   +5 more
doaj   +1 more source

Cooperative subcarrier sensing using antenna diversity based weighted virtual sub clustering [PDF]

open access: yes, 2016
The idea of cooperation and the clustering amongst cognitive radios (CRs) has recently been focus of attention of research community, owing to its potential to improve performance of spectrum sensing (SS) schemes.
Ghafoor, Abdul   +2 more
core   +1 more source

Bad Data Detection and Identification of Hybrid AC/DC Power Systems with Voltage Source Converters Using Deep Belief Network and K-Means Clustering

open access: yesElektronika ir Elektrotechnika, 2019
The widespread use of Voltage Source Converter based High Voltage Direct Current Transmission (VSC-HVDC) technology has significantly increased the complexity of grid configuration and operation, which demands higher quality of AC/DC state estimation ...
Tong Zhang   +4 more
doaj   +1 more source

Sosyodemografik yapı ve sigara kullanımının ağız kokusu üzerine etkisinin organoleptik yöntem ve halimeter® ile değerlendirilmesi

open access: yesCumhuriyet Dental Journal, 2014
Amaç: Bu çalışmanın amacı, Yakın Doğu Üniversitesi, Diş Hekimliği Fakültesine başvuran bireylerde halitozis görülme sıklığının araştırılması ve halitozis ile yaş, cinsiyet, eğitim seviyesi ve sigara kullanımı arasındaki ilişkinin incelenmesidir ...
Başak Kuşakcı Şeker, Hayriye Tumer
doaj   +1 more source

Transient stability enhancement control strategy for droop-controlled voltage source converter

open access: yesEnergy Reports, 2022
The droop-controlled voltage source converter (VSC) can support the voltage at the point of common coupling (PCC) and realize frequency adjustment by simulating the swing equation of the synchronous generator (SG) and has a higher stability margin in the
Jilei Wang   +4 more
doaj   +1 more source

A Modified Version of Taylor's Hypothesis for Solar Probe Plus Observations [PDF]

open access: yes, 2015
The Solar Probe Plus (SPP) spacecraft will explore the near-Sun environment, reaching heliocentric distances less than $10 R_{\odot}$. Near Earth, spacecraft measurements of fluctuating velocities and magnetic fields taken in the time domain are ...
Chandran, Benjamin D. G.   +4 more
core   +2 more sources

Active distribution power system with multi-terminal DC links [PDF]

open access: yes, 2015
A fast power restoration operational scheme and relevant stabilizing control is proposed for active distribution power systems with multi-terminal DC network in replacement of the conventional normal open switches. A 9-feeder benchmark distribution power
Chen, Dong, Xu, Lie, Zhang, Wendian
core   +2 more sources

Análise Comparativa Entre O Controle Direto E Indireto De Injeção De Corrente Em Um D-statcom

open access: yesEletrônica de Potência, 2006
O D-STATCOM (Distribution Static Synchronous Compensator) é em sua essência uma fonte de tensão ac onde a magnitude, o ângulo de fase e a freqüência da tensão de saída podem ser controlados.
Antonio Carlos Borre   +3 more
doaj   +1 more source

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