Results 21 to 30 of about 277,097 (267)

Pre-Assembly Core Loss Measurement of Electric Motor Cores: A Review of Conventional and Advanced Technologies

IEEE Access
Accurate core loss measurement considering manufacturing effects is essential for improving motor efficiency and reliability. This paper explores pre-assembly core loss measurement techniques in electric motors, focusing on the influence of manufacturing
Sudesh V. Pathirannahalage, Lukasz Mierczak, Berker Bilgin   +2 more
doaj   +1 more source

Calculation for stator loss of high-speed permanent magnet synchronous machine in torque-speed envelope and restraint approach for circulating current in windings

CES Transactions on Electrical Machines and Systems, 2018
Iron loss and copper loss are the significant parts of electrical loss of machines, which are the major parts particularly under high frequency condition. High-speed permanent magnet synchronous machines (HS-PMSM) have the benefits of high power density,
Yanan Yu, Deliang Liang, Zhe Liang, Qiji Ze   +3 more
doaj   +1 more source

Analysis and Design of Novel High Speed Permanent Magnet Machine Considering Magnet Eddy Current Loss

IEEE Access, 2020
In high speed permanent magnet (HSPM) machines, the computation of magnet eddy current loss is essential as these losses significantly affect the temperature of the permanent magnet (PM) and electromagnetic performance and can result in irreversible ...
Hamid Ali Khan, Faisal Khan, Naseer Ahmad, Jongsuk Ro   +3 more
doaj   +1 more source

An Effective and Simplified Control Strategy for Loss Minimum of Permanent Magnet Synchronous Motor on Electric Vehicles

Journal of Harbin University of Science and Technology, 2020
In order to solve the problem of the loss of iron core and saturation inductance in the optimization control of constant power and wide speed of internal permanent magnet synchronous motor for electric vehicle，a new method of minimum loss control for a ...
LIN Li, PENG Zhengmiao, WAN Bingcheng, CHEN Hongwei, CHEN Hongzhuan   +4 more
doaj   +1 more source

Temperature-Dependent Ferromagnetic Loss Approximation of an Induction Machine Stator Core Material Based on Laboratory Test Measurements

Energies, 2023
The accurate measurement and modeling of ferromagnetic material losses are vital issues during the design and analysis of electrical machines. Higher loss values can describe the manufactured rotor and stator machine plates better than the catalog data ...
Miklós Kuczmann, Tamás Orosz
doaj   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

FEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino, Meijie Li, Cécile Fizames, Mattia Adamo, Laurence Lejay, Christian Dubos, Matthieu Platre, Antoine Martin   +7 more
wiley   +1 more source

Dynamic iron loss model analysis method under high proportion new energy access

Diance yu yibiao
The fixed loss model or empirical formula model of transformer has been widely used in the line loss analysis of power system. With the large-scale access of high proportion of new energy generation, the power flow in the power system has changed from ...
WANG Yifeng, MA Xiping, CEN Bingcheng, ZHU Dandan, LIANG Hao, JIANG Tong   +5 more
doaj   +1 more source

Sensorless Control of High-Speed Motors Subject to Iron Loss

Energies, 2022
It is widely recognized that the iron loss produced by motors at high speeds will directly affect the angle and size of the back electromotive force, and, therefore, it cannot be ignored.
Yang Cao, Jian Guo
doaj   +1 more source

By dawn or dusk—how circadian timing rewrites bacterial infection outcomes

FEBS Letters, EarlyView.
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo, Catherine S. Palmer, Jacqueline M. Kimmey   +2 more
wiley   +1 more source

Losses in Efficiency Maps of Electric Vehicles: An Overview

Energies, 2021
In some applications such as electric vehicles, electric motors should operate in a wide torque and speed ranges. An efficiency map is the contour plot of the maximum efficiency of an electric machine in torque-speed plane.
Emad Roshandel, Amin Mahmoudi, Solmaz Kahourzade, Amirmehdi Yazdani, GM Shafiullah   +4 more
doaj   +1 more source