Results 111 to 120 of about 5,775 (306)
Detecção e análise de eventos de ilhamento utilizando dados fasoriais sincronizados e a transformada Wavelet discreta [PDF]
, 2013 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2013.Este trabalho propõe uma metodologia para a detecção e análise de eventos de ilhamento do Sistema ...
Brustolin, Geyson
core
Intentional islanding in medium voltage distribution grids
, 2016 The penetration of Distributed Generators connected to the electric grid requires today new control strategies in order to participate in local ancillary services.
TIRONI, ENRICO +14 more
core +1 more source
Advanced Engineering Materials, EarlyView.This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat +7 more
wiley +1 more source
Combined Active Islanding Detection Method for Grid-connected Photovoltaic System
Gaoya dianqi, 2014 Unintentional islanding phenomenon has been one of the most important problems of gridconnected photovoltaic inverters. To prevent this phenomenon, all kinds of anti-islanding methods have been discussed.
WEI Quan +4 more
doaj
Comparative Study of Different Approaches for Islanding Detection of Distributed Generation Systems
Applied System Innovation, 2019 The issue of unintentional islanding in grid interconnection still remains a challenge in grid-connected, Distributed Generation System (DGS). This study discusses the general overview of popular islanding detection methods.
Ashish Shrestha +9 more
doaj +1 more source
, 2019 In this paper different passive islanding detection schemes for synchronous distributed generation (DG) is presented and their performance is evaluated. Renewable DG systems place a vital role in the smart grids. One of the important problems due to such
Reddy, Ch Rami, Harinadha Reddy, K
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Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing
Advanced Engineering Materials, EarlyView.This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu +10 more
wiley +1 more source
DG System Using PFNN Controllers for Improving Islanding Detection and Power Control
Energies, 2019 In this study, an intelligent controlled distributed generator (DG) system is proposed for tracking control and islanding detection. First, a DC/AC inverter with DC power supply is adopted to emulate a DG system and control the active and reactive power ...
Kuang-Hsiung Tan, Chien-Wu Lan
doaj +1 more source
Advanced Engineering Materials, EarlyView.A distinct semi‐confined inner‐tube chemical vapor deposition geometry enables reproducible, large‐area growth of phase‐pure 2D β′‐In2Se3 from InI + Se precursors. Engineering local vapor transport and optimizing precursor delivery and temperature–time conditions yield uniform continuous films.
Dasun P. W. Guruge +8 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal +3 more
wiley +1 more source