Results 101 to 110 of about 27,949 (355)

Engineering design project : series 1 [PDF]

open access: yes, 2017
This book is a compilation of engineering design projects which illustrates a detail explanation on the design process including all tools and methods involved in each design stage.

core  

Load Torque Observer for Minimising Torque Ripple in PMSM

open access: yes, 2004
Permanent magnet synchronous motors generate parasitic torque pulsations owing to distortion of the stator flux linkage distribution and variable magnetic reluctance at the stator slots. The consequences are speed oscillations which deteriorate the performance drive in various applications.
Gasc, Laurent   +3 more
openaire   +1 more source

Drug‐Free Thrombolysis Mediated by Physically Activated Micro/Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Overview of particle‐mediated thrombolytic effects (thermal, mechanical, and chemical) and their activating physical stimuli (light, ultrasound, and magnetic field) in drug‐free thrombolysis. ABSTRACT Thrombus‐associated disorders rank among the world's leading causes of death, with ischemic heart disease and stroke as the main contributors.
Pierre Sarfati   +2 more
wiley   +1 more source

Optimization Research on Torque Ripple of Built-In V-Shaped Permanent Magnet Motor with Magnetic Isolation Holes

open access: yesWorld Electric Vehicle Journal
The built-in V-shaped permanent magnet motor can effectively utilize reluctance torque to improve torque density, but there is also a problem of large torque ripple causing high vibration noise.
Junhong Dong   +4 more
doaj   +1 more source

Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles

open access: yesEnergies, 2014
This paper investigated a 12-slot/11-pole flux switching permanent magnet (FSPM) machine used for electric vehicles (EVs). Five novel rotor teeth shapes are proposed and researched to reduce the cogging torque and torque ripple of the FSPM machine. These
Jing Zhao   +4 more
doaj   +1 more source

Effect of toroidal field ripple on plasma rotation in JET [PDF]

open access: yes, 2008
Dedicated experiments on TF ripple effects on the performance of tokamak plasmas have been carried out at JET. The TF ripple was found to have a profound effect on the plasma rotation.
Andrew, Y.   +17 more
core   +2 more sources

Improved High-Fidelity IPMSM mathematical model Including Saturation, Cross-Coupling, Torque Ripple and Iron Loss effects

open access: green, 2022
Antonino Oscar Di Tommaso   +4 more
openalex   +2 more sources

Bio‐Inspired Magnetically Tunable Structural Colors from Elliptical Self‐Assembled Block Copolymer Microparticles

open access: yesAdvanced Functional Materials, EarlyView.
Cephalopod‐inspired photonic microparticles with dynamic structural coloration are fabricated via confined self‐assembly of linear block copolymers into ellipsoids containing stacked lamellae. Embedded superparamagnetic nanoparticles enable rapid magnetic alignment, restoring vivid, angle‐dependent color.
Gianluca Mazzotta   +8 more
wiley   +1 more source

Design of Model Predictive Torque Control (MPTC) for Speed Control 3 Phase Induction Motor with Robust Stator Flux Observer [PDF]

open access: yes, 2015
The induction motor is a desirable alternative to the direct current motor in many applications because it is rugged, reliable and economical. However, control of the induction motor is more complex than the direct current motor, this is caused by the ...
Efendi, R. (Rusdhianto)   +2 more
core  

Predictive current control of asynchronous machines by optimizing the switching moments [PDF]

open access: yes, 2013
In this paper a model-based predictive control (MBPC) scheme for the current control of induction machines is presented. The controller directly selects the optimal switch state of the inverter.
De Belie, Frederik   +3 more
core   +1 more source

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