Results 1 to 10 of about 6,760 (259)

Influence of Introducing the Rotor MMF Harmonic on Torque Performance of Spoke Type Permanent Magnet Motor With FSCW

open access: yesIEEE Access, 2020
This article proposes a torque optimization method that introduces the rotor magnetomotive force (MMF) harmonics, aiming to increase the average torque without increasing the cogging torque and torque ripple.
Jiaxu Zhang, Bingyi Zhang, Guihong Feng
doaj   +1 more source

A compare research on third harmonic current control for five-phase permanent magnet synchronous motor

open access: yesXibei Gongye Daxue Xuebao, 2021
The injection of a third harmonic current can improve the electromagnetic torque output of the five-phase permanent magnet synchronous motor. In this paper, constant copper consumption and constant maximum current are used as constraints, and the ...

doaj   +1 more source

Electromagnetic angular momentum in anisotropic media and Beth's torque

open access: yesPhysics Open, 2022
The interaction of radiation with material media is a very active area of research, in particular the interaction with new exotic materials. However, we find several controversies in this field, like the Abraham-Minkowski controversy, or the attribution of angular momentum to quasi-static fields.In the present work we show that besides the ...
J.A.E. Roa-Neri   +2 more
openaire   +2 more sources

Characteristic Analysis and Experimental Verification of Electromagnetic and Vibration/Noise Aspects of Fractional-Slot Concentrated Winding IPMSMs of e-Bike

open access: yesEnergies, 2021
In this study, we performed the electromagnetic and mechanical characteristic analyses of an 8-pole 12-slot interior permanent magnet synchronous motor (IPMSM).
Young-Geun Lee   +5 more
doaj   +1 more source

MTPA-DTC efficiency optimization method for feeding system of pressure filter

open access: yesGong-kuang zidonghua, 2014
In order to improve actual operation efficiency of feeding system of pressure filter, an efficiency optimization method with the maximum torque per ampere applied in direct torque control was proposed.
ZHANG Ka, FANG Lei, CAO Xiaodong
doaj   +1 more source

Effect of Objective Function Formulation on Static and Operating Parameters of a Switched Reluctance Motor After Optimization of Magnetic Circuit Shape

open access: yesAdvances in Electrical and Computer Engineering, 2018
The article presents a comparison of two optimization methods aimed at the linearization of electromagnetic torque on rotor position angle in a two-phase switched reluctance motor (SRM).
WROBEL, K., TOMCZEWSKI, K.
doaj   +1 more source

Electromagnetic Hysteresis Based Dynamics Model of an Electromagnetically Controlled Torque Coupling [PDF]

open access: yesProcesses, 2019
This paper proposes a novel computationally efficient, easy-to-implement electromagnetic hysteresis based dynamics model of a kind of intelligent electromagnetic torque controlled coupling (EMTC), which, with drag torque under consideration, first models the electromagnetic hysteresis existing in the primary clutch with the classical Preisach model ...
Jianbo Feng   +4 more
openaire   +1 more source

Electromagnetic Torque Components Analysis of Ultra-High-Speed Permanent-Magnet Synchronous Motor for Fuel Cell Air Compressor

open access: yesActuators
The ultra-high-speed electric air compressor (UHSEAC) is affected by the electromagnetic torque components of the ultra-high-speed permanent magnet synchronous motor (UHSPMSM) during wide-range speed regulation, resulting in intense speed fluctuation ...
Jiaming Zhou   +8 more
doaj   +1 more source

Analytical Prediction and Analysis of Electromagnetic-Thermal Fields in PM Eddy Current Couplings With Injected Harmonics Into Magnet Shape for Torque Improvement

open access: yesIEEE Access, 2020
To improve the output torque in permanent magnet (PM) eddy current couplings, a new structure based on harmonics injection into the magnet optimization theory is proposed.
Di Zheng, Xifeng Guo
doaj   +1 more source

Shaft Integrated Electromagnetic Energy Harvester with Gravitational Torque [PDF]

open access: yesDesigns, 2020
This paper presents the development of an electromagnetic energy harvester for electrical supply of a sensor unit integrated on the rotating inner ring of a rolling bearing. This energy harvester is of special interest for condition monitoring tasks on rotating shafts.
Michel Ullrich   +3 more
openaire   +2 more sources

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