Results 51 to 60 of about 120,988 (308)

Transition between grid-connected mode and islanded mode in VSI-fed microgrids

Sādhanā, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dibakar Das, Gurunath Gurrala, U Jayachandra Shenoy   +2 more
openaire   +2 more sources

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

An Improved Rule-Based Energy Management System: Effective Solution to Achieve Collaborative Control of Batteries in Multi-Prosumers Community Microgrid

IEEE Access
The integration of renewable energy sources into community microgrids is increasingly critical for reducing reliance on utility grids and promoting local energy consumption.
Jiawei Huang, Chengxiong Mao, Bin Liu, Dan Wang, Rui Gao, Bo Gu   +5 more
doaj   +1 more source

Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer, Lukas Spano, Sebastian Pohl, Carolin Körner, Matthias Markl   +4 more
wiley   +1 more source

Estratégia híbrida de controle para inversores trifásicos conectados à rede baseada em controladores deadbeat e proporcional+ressonante [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2014.Neste trabalho apresentam-se metodologias de projeto de controladores de corrente para inversores ...
Andreta, André Gutierrez
core  

Tradeoffs between AC power quality and DC bus ripple for 3-phase 3-wire inverter-connected devices within microgrids

, 2011
Visions of future power systems contain high penetrations of inverters which are used to convert power from dc (direct current) to ac (alternating current) or vice versa.
Roscoe, Andrew, Burt, Graeme, Finney, Stephen J., Stephen J. Finney, Finney, Stephen, Burt, Graeme M., Andrew J. Roscoe, Graeme M. Burt, Roscoe, Andrew J.   +8 more
core   +1 more source

Reduced order calculation method of subsynchronous oscillation mode of PMSG based wind farm connected with power grid based on Arnoldi method

Science and Technology for Energy Transition
Large scale wind turbine connected to the power grid is easy to induce subsynchronous oscillation. “Curse of dimensionality” will be encountered when the subsynchronous oscillation mode is analysed and evaluated based on the full-order model of the wind ...
Xu Jing, Liu Shuxin, Ming Xin
doaj   +1 more source

Voltage regulation strategy of AC distribution network based on distributed PV grid-connected inverter

The Journal of Engineering, 2019
The distribution network connected with photovoltaic (PV) power generation may show high voltage under strong light and low voltage under weak light. The influence of distributed PV generation on the grid voltage profile is analysed first, and then, the ...
Xiangqian Tong, Minghang Zhong, Xiaoqing Zhang, Jun Deng, Zhihua Zhang   +4 more
doaj   +1 more source

Multimodal Data‐Driven Microstructure Characterization

Advanced Engineering Materials, EarlyView.
A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang, Santiago Benito, Özge Özgün, Sebastian Weber, Markus Stricker   +4 more
wiley   +1 more source

Control of transient power during unintentional islanding of microgrids

, 2014
In inverter-based microgrids, the paralleled inverters need to work in grid-connected mode and stand-alone mode and to transfer seamlessly between the two modes. In grid-connected mode, the inverters control the amount of power injected into the grid. In
Sharkh, S.M., Abusara, Mohammad, Issa, Walid, Sharkh, SM, Sharkh, Suleiman, Issa, W, Abusara, M   +6 more
core   +1 more source