Results 21 to 30 of about 53,281 (221)

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

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

Power electronics options for large wind farm integration : VSC-based HVDC transmission [PDF]

open access: yes, 2006
This paper describes the use of voltage source converter based HVDC transmission (VSC transmission) system for grid integration of large wind farms over long distance.
Sasse, C., Xu, L., Yao, L.
core   +2 more sources

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 Fast, Numerical Circuit-Level Model of Carbon Nanotube Transistor [PDF]

open access: yes, 2007
Recently proposed circuit-level models of carbon nanotube transistor (CNT) for SPICE-like simulators suffer from numerical complexities as they rely on numerical evaluation of integrals or internal Newton-Raphson iterations to find solutions of non ...
Al-Hashimi, Bashir   +2 more
core   +1 more source

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

open access: yesJournal 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

Control of multi-terminal HVDC networks towards wind power integration: A review [PDF]

open access: yes, 2016
© 2015 Elsevier Ltd. More interconnections among countries and synchronous areas are foreseen in order to fulfil the EU 2050 target on the renewable generation share.
Bianchi, Fernando Daniel   +2 more
core   +2 more sources

A general method for the resummation of event-shape distributions in e⁺ e− annihilation [PDF]

open access: yes, 2014
We present a novel method for resummation of event shapes to next-to-next-to-leading-logarithmic (NNLL) accuracy. We discuss the technique and describe its implementation in a numerical program in the case of e + e − collisions where the resummed ...
A Banfi   +61 more
core   +1 more source

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