Results 21 to 30 of about 175,294 (335)
Simulation of wind turbine wake interaction using the vorticity transport model [PDF]
, 2010 The aerodynamic interactions that can occur within a wind farm can result in the constituent turbines generating a lower power output than would be possible if each of the turbines were operated in isolation.
Ahlin +15 more
core +1 more source
Journal of Arrhythmia, 2022 Background This study aimed to evaluate the predictors of recurrence of atrial tachyarrhythmias by structural and functional mapping: voltage, dominant frequency (DF), and rotor mapping after a pulmonary vein isolation (PVI) in nonparoxysmal atrial ...
Koji Kumagai +7 more
doaj +1 more source
Quality Assurance Testing for Screening Defective Aluminum Die-cast Rotors of Squirrel Cage Induction Machines [PDF]
, 2018 The recent trend in squirrel cage induction motor manufacturing is to replace fabricated copper rotors with aluminum die-cast rotors to reduce manufacturing cost to stay competitive in the global market. Porosity in aluminum die-cast squirrel cage rotors
Gyftakis, Konstantinos N. +4 more
core +1 more source
PWM-based Flux linkage estimation for permanent magnet synchronous machines
The Journal of Engineering, 2019 Monitoring of rotor temperature in permanent magnet synchronous machines (PMSM) is of great importance as high temperature could cause partial or even irreversible demagnetisation of the permanent magnets (PMs).
Shuai Xiao, Antonio Griffo
doaj +1 more source
Orienting coupled quantum rotors by ultrashort laser pulses [PDF]
, 2004 We point out that the non-adiabatic orientation of quantum rotors, produced by ultrashort laser pulses, is remarkably enhanced by introducing dipolar interaction between the rotors.
E. T. Whittaker +5 more
core +2 more sources
Study on the fault ride through critical elements and coordinated control of DFIG's converters
The Journal of Engineering, 2019 The increasing of large-scale wind power integration capacity brings great challenges to the safe operation and management of power grid.
Bingjie Tang +4 more
doaj +1 more source
Performance and wake analysis of rotors in axial flight using computational fluid dynamics [PDF]
, 2017 Flow field around rotors in axial flight is known to be complex especially in steep descent where the rotor is operating inside its own wake. It is often reported that, in this flight condition, the rotor is susceptible to severe wake interactions ...
Barakos, George +1 more
core +5 more sources
The Journal of Engineering, 2019 The doubly fed induction generator (DFIG) has insufficient capacity to respond to the frequency inertia of the power grid due to the isolation between the rotor kinetic energy and the power grid by the generator-side converter.
Dongyang Sun +6 more
doaj +1 more source
Longitudial fluctuations of rotors of disk knife refiners [PDF]
, 2020 The subject of the study is the longitudinal fluctuations of the rotors of disk knife refiners. The dynamic and mathematical models of rotors of disk mills are developed.
Vikharev, S. N.
core
Manufacturing method and performance assessment for variable lead vacuum rotors [PDF]
, 2017 In recent years variable lead rotors have been produced, mainly for vacuum applications, involving a multiple pass manufacturing process which is necessarily time-consuming.
Holmes, C. S., Rane, S., Wang, X.
core +1 more source