Results 51 to 60 of about 13,756 (306)

Torque Ripple Minimization in Switched Reluctance Motors With Acoustic Noise Mitigation by Current Waveform Shaping

open access: yesIEEE Open Journal of Industry Applications
This article presents a novel method for torque ripple reduction in switched reluctance motors (SRMs). The proposed method relies on current waveform shaping.
Fares S. El-Faouri   +7 more
doaj   +1 more source

A Review of Torque Ripple Reduction Design Methods for Radial Flux PM Motors

open access: yesEng, 2022
Nowadays the efficient use of energy is a major issue in applications such as electric vehicles. However, there are some phenomena that affect electric vehicle performance.
Sergio I. Suriano-Sánchez   +3 more
doaj   +1 more source

Active torque ripple reduction based on an analytical model of torque

open access: yesIET Electric Power Applications, 2017
The vibration caused by torque ripple may degrade the performance of drivetrain, thus the reduction of torque ripple are necessary for hybrid electrical vehicle/electrical vehicle application, while an analytical description of torque will be the basis.
Zaimin Zhong   +3 more
openaire   +1 more source

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov   +4 more
wiley   +1 more source

Torque Ripple Reduction in Switched Reluctance Motors by Rotor Poles Shape and Excitation Pulse Width Modification

open access: yesIranian Journal of Electrical and Electronic Engineering, 2020
In this paper, at first, a 24/16 three-phase switched reluctance motor is designed, then the rotor poles shape tips corrected for reduction ripple of single-phase torque waveform.
H. Davari, Y. Alinejad-Beromi
doaj  

A Modified Variable Switching Frequency Spread-Spectrum PWM Technique With Reduced Torque Ripple for a Vector-Controlled PMSM Drive

open access: yesIEEE Access, 2022
The discrete tonal bands introduced in an AC machine’s stator current spectrum by constant switching frequency pulse width modulation schemes, have adverse impacts on the vibration, the acoustic noise, and the electromagnetic interference ...
Meera Khalid   +3 more
doaj   +1 more source

Permanent Magnet minimization in PM-Assisted Synchronous Reluctance motors for wide speed range [PDF]

open access: yes, 2013
This paper presents a technique to modify the rotor lamination of a permanent-magnet-assisted synchronous reluctance motor, in order to reduce the magnet volume with no side effect on performance.
Armando, Eric Giacomo   +4 more
core   +1 more source

Dynamic Testing of Cold Gas Sprayed Bipolar Plates–Porous Transport Layer Coating System in Proton Exchange Membrane Water Electrolysis

open access: yesAdvanced Engineering Materials, EarlyView.
Through direct application of porous transport layer (PTL) on the bipolar plate (BPP) with thermal spraying, the interfacial contact resistance is improved. With the cold gas sprayed BPP–PTL coating system, a proton exchange membrane water electrolysis cell with a cell voltage of Ucell = 1.9 V can be operated up to i = 2.5 A/cm2 in a dynamic mode ...
Kirsten Bobzin   +5 more
wiley   +1 more source

Methods of resistance estimation in permanent magnet synchronous motors for real-time thermal management [PDF]

open access: yes, 2010
Real-time thermal management of electrical ma- chines relies on sufficiently accurate indicators of internal tem- perature. One indicator of temperature in a permanent-magnet synchronous motor (PMSM) is the stator winding resistance.
Stewart, Paul   +2 more
core   +3 more sources

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller   +8 more
wiley   +1 more source

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