Results 21 to 30 of about 6,233,093 (291)
Observations of expert communicators in immersive virtual worlds: implications for synchronous discussion [PDF]
, 2008 With the increased interest in using Immersive Virtual Worlds (IVWs) such as Second Life to augment and amplify teaching or to develop communities of practice, the author engaged graduate students, all current K‐12 teachers, in a qualitative study to ...
McVey, Michael, Michael Hamilton McVey
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Torque ripple reduction of a direct-drive permanent-magnet synchronous machine by material-efficient axial pole pairing [PDF]
, 2011 This paper investigates a material-efficient axial pole pairing method for torque ripple reduction in a direct-drive outer-rotor surface-mounted permanent-magnet synchronous machine.
Patrick Chi-Kwong Luk +3 more
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Étude comparative de différents correcteurs pour la commande optimale avec défauts d’une machine pentaphasée [PDF]
, 2012 La version éditeur de cet article est accessible à l'adresse suivante : doi:10.3166/ejee.15.377-400The use of multiphase PM synchronous machines associated with VSI drives appears to be a very efficient solution when a high level of reliability ...
CHARPENTIER, Jean-Frederic +3 more
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IEEE Access, 2021 The share of renewable energy sources interfaced to the bulk power system through power electronic devices is continuously increasing. As a result, the power systems of the future face challenges of stability and reduced inertia and, to maintain the ...
Bojana Barac +3 more
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Tree parsing with synchronous tree-adjoining grammars [PDF]
, 2011 Restricting the input or the output of a grammar-induced translation to a given set of trees plays an important role in statistical machine translation. The problem for practical systems is to find a compact (and in particular, finite) representation of ...
Vogler, Heiko +2 more
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Wind Energy, 2022 In the quest of improving the frequency response capability of wind turbines, control solutions trying to emulate synchronous machines have been proposed.
Liang Lu +2 more
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A Virtual Inertia Control Strategy for DC Microgrids Analogized With Virtual Synchronous Machines [PDF]
IEEE Transactions on Industrial Electronics, 2017 In a DC microgrid (DC-MG), the dc bus voltage is vulnerable to power fluctuation derived from the intermittent distributed energy or local loads variation. In this paper, a virtual inertia control strategy for DC-MG through bidirectional grid-connected converters (BGCs) analogized with virtual synchronous machine (VSM) is proposed to enhance the ...
Wenhua Wu 0001 +7 more
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A Review of Synchronization Stability Analysis and Control Strategies for Grid-Connected Inverters [PDF]
Dianli jianshe[Objective] With the increasing penetration of power electronic devices in the new power systems， the system is gradually evolving from a “physical synchronization” paradigm dominated by synchronous generators to a “control-based synchronization ...
LI Li, SONG Huihui, LIN Xinpo, YAN Zhibin, TIAN Xing, WU Yang
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IET Renewable Power Generation, 2023 Large‐scale penetration of renewable resource based generation will displace conventional synchronous machine‐based power generation. This will lower the overall system inertia and will result in lower short circuit levels at point of connection (POC) of
Randupama Gunasekara +6 more
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Journal of Edge Computing, 2023 The purpose of the article is to develop and verify with the help of mathematical modeling a software method of deploying a fault-tolerant computing cluster with a virtual machine, which consists of two physical servers (main and backup), on which a ...
Andrii V. Riabko +4 more
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