Results 31 to 40 of about 197,516 (402)

Analysis of Electromagnetic Vibration in Permanent Magnet Motors Based on Random PWM Technology

open access: yesMachines
High vibration noise limits the application of permanent magnet motors in electric locomotive traction. This paper focuses on the high-frequency electromagnetic vibration in traction permanent magnet motors introduced by inverters. It explores the impact
Chi Ma   +4 more
doaj   +1 more source

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

Nonlinear varying-network magnetic circuit analysis for doubly salient permanent-magnet motors [PDF]

open access: yes, 2000
In this paper, a nonlinear varying-network magnetic circuit (VNMC) modeling method is developed for doubly salient permanent-magnet (DSPM) motors. The method is used to analyze the static characteristics of DSPM motors by specific permeance calculations,
Chan, CC, Chau, KT, Cheng, M
core   +1 more source

A Solution of Three-phase Current Synchronous Sampling for Permanent Magnet Synchronous Motor Based on FPGA

open access: yesKongzhi Yu Xinxi Jishu
Synchronously sampling three-phase current in the traction control unit based on the control cycle is necessary to enhance control of permanent magnet synchronous motors.
LIAO Licheng, LI Miao
doaj   +3 more sources

Multi-objective optimal design of a five-phase fault-tolerant axial flux PM motor [PDF]

open access: yes, 2015
Electric motors used for traction purposes in electric vehicles (EVs) must meet several requirements, including high efficiency, high power density and faulttolerance. Among them, permanent magnet synchronous motors (PMSMs) highlight.
Riba Ruiz, Jordi-Roger   +2 more
core   +2 more sources

On the stator flux linkage estimation of an PMSM with extended Kalman filters [PDF]

open access: yes, 2010
The demand for drives with high quality torque control has grown tremendously in a wide variety of applications. Direct torque control (DTC) for permanent magnet synchronous motors can provide this accurate and fast torque control.
Boel, René   +2 more
core   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Overview of Position-Sensorless Technology for Permanent Magnet Synchronous Motor Systems

open access: yesWorld Electric Vehicle Journal, 2023
In recent years, permanent magnet synchronous motors (PMSMs) have been widely used in industry. Position-sensorless control has the advantages of reducing costs and improving reliability, and is becoming one of the most promising technologies for ...
Yulei Xu, Ming Yao, Xiaodong Sun
doaj   +1 more source

Faults and Diagnosis Methods of Permanent Magnet Synchronous Motors: A Review

open access: yesApplied Sciences, 2019
Permanent magnet synchronous motors (PMSM) have been used in a lot of industrial fields. In this paper, a review of faults and diagnosis methods of PMSM is presented.
Yong Chen   +4 more
semanticscholar   +1 more source

Liquid biopsy epigenetics: establishing a molecular profile based on cell‐free DNA

open access: yesMolecular Oncology, EarlyView.
Cell‐free DNA (cfDNA) fragments in plasma from cancer patients carry epigenetic signatures reflecting their cells of origin. These epigenetic features include DNA methylation, nucleosome modifications, and variations in fragmentation. This review describes the biological properties of each feature and explores optimal strategies for harnessing cfDNA ...
Christoffer Trier Maansson   +2 more
wiley   +1 more source

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