Results 51 to 60 of about 3,785 (294)
Selection of Appropriate Dispatch Strategies for Effective Planning and Operation of a Microgrid
Energies, 2021 The power system responsiveness may be improved by determining the ideal size of each component and performing a reliability analysis. This study evaluated the design and optimization of an islanded hybrid microgrid system with multiple dispatch ...
Sk. A. Shezan +4 more
doaj +1 more source
The Finnish transmission grid in islanded operation
, 2021 Suomen kantaverkko on yhdistetty muuhun pohjoismaiseen sähköverkkoon kahdella Pohjois-Suomen 400 kV vaihtosähköyhteydellä. Myös Norjaan on vaihtosähköyhteys, mutta tämä on melko heikko ja pitkä 220 kV johto.
Opas, Mikael
core
Advanced Engineering Materials, EarlyView.Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth +6 more
wiley +1 more source
ElectricityThe progressive replacement of synchronous machines by inverter-based resources (IBRs) reduces system inertia and short-circuit strength, making power systems more vulnerable to frequency and voltage instabilities.
Mariajose Giraldo-Jaramillo +1 more
doaj +1 more source
Cooperative Control to Enhance the Frequency Stability of Islanded Microgrids with DFIG-SMES
Energies, 2013 The issue of frequency stability of microgrids under islanded operation mode and mode transfer has attracted particular attention recently. In this paper, a cooperative frequency control method, which consists of a microgrid central control (MGCC) and ...
Wu Chen +4 more
doaj +1 more source
Modelagem, análise de estabilidade e controle de microrredes de energia elétrica [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia Elétrica.Este trabalho de dissertação aborda os problemas de modelagem, análise de estabilidade e controle de microrredes de ...
Rese, Leonardo
core
, 2020 In order to ensure the uninterrupted power supply, it is necessary for the microgrid to operate in both grid-connected mode and islanded mode. To address this concern, this study proposes a unified decentralised control strategy for both grid-connected ...
Zhang, Xin +6 more
core +1 more source
A Per-Phase Power Controller allowing Smooth Transitions to Islanded Operation
, 2021 This paper presents a droop-based controller for grid-tied three-phase inverters. The controller allows to regulate the inverter output power while operating grid-tied, to support the local grid voltage while operating islanded, and to seamlessly ...
Caldognetto T. +2 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
IEEE Access, 2020 With the increase of distributed generation penetration, the economic operation of microgrid has been fully developed. For islanded microgrid, due to the lack of large grid support and the limited capacity of the distributed generation (DG), the energy ...
Mao Yang, Jinxin Wang, Jun An
doaj +1 more source