Results 11 to 20 of about 1,017,148 (266)

Research on Losses and Heat Dissipation of Saturable Reactor Used in Converter Valve

IEEE Access, 2022
Based on the analysis of the principle and structure of a saturable reactor used in a converter valve of HVDC transmission, this paper analyzes its power loss composition and summarizes and derives the power loss equations.
Kun Liu, Kai Li, Zhongting Chang, Caiyun Fan, Siquan Hu   +4 more
doaj   +1 more source

Fe-6.5 wt%Si Powder Cores with Low Core Loss by Optimizing Particle Size Distribution

Metals, 2020
The effect of different particle size distribution of Fe-6.5 wt%Si powder on the microstructure and soft magnetic properties of the corresponding soft magnetic powder cores (SMPCs) was investigated.
JianJun Huang, Lixin Jiao, Yu Yang, Yaqiang Dong, Yiqun Zhang, Liang Chang, Mengji Gong, Jiawei Li, Aina He, Xinmin Wang   +9 more
doaj   +1 more source

Optimization and Experimental Validation of Amorphous Alloy High-Speed Asynchronous Motor for Simultaneous Reduction on Core and Copper Losses

IEEE Access, 2023
Amorphous alloy has been proposed to replace silicon steel as the stator core material of high-speed asynchronous motors so as to reduce their core losses. However, it is found that this is at the expense of increasing the copper loss.
Jiahao Zhang, Ronggao Cui, Yu Wei, Degui Yu, Shunde Xie, Shitong Fang, Jun Shen   +6 more
doaj   +1 more source

FeSiCr-Based Soft Magnetic Composites with SiO₂ Insulation Coating Prepared Using the Elemental Silicon Powder Hydrolysis Method

Metals, 2023
In this work, FeSiCr powders were coated with a SiO2 insulation layer for soft magnetic composites (SMCs) through elemental silicon powder hydrolysis, without using any expensive precursors.
Chunlong Li, Hongya Yu, Guangze Han, Zhongwu Liu   +3 more
doaj   +1 more source

A Review on the Effect of Electrical Steel Manufacturing Processes on the Performance of Electric Machines

Energies, 2023
The manufacturing processing of Electrical Steel Laminations (ESLs) for electric machines comprises cutting, stacking, and housing techniques which can result in plastic deformation and residual stress in the soft magnetic material.
Farshid Mahmouditabar, Nick Baker
doaj   +1 more source

Stress-Dependent Magnetic Equivalent Circuit for Modeling Welding Effects in Electrical Steel Laminations

Machines, 2022
Welding has a severe impact on the efficiency of electrical machines. The heat added during the welding process affects the microstructure of the material and causes residual stress.
Andries Daem, Mohamed N. Ibrahim, Peter Sergeant, Luc Dupré   +3 more
doaj   +1 more source

Development of Equivalent Circuit Models of Permanent Magnet Synchronous Motors Considering Core Loss

Energies, 2022
Permanent magnet synchronous motor (PMSM) possesses the advantages of low power loss, high power density and high torque density and, hence, has achieved broad applications in both industrial drives and home appliances.
Xin Ba, Zhenjie Gong, Youguang Guo, Chengning Zhang, Jianguo Zhu   +4 more
doaj   +1 more source

Efficiency and Core Loss Map Estimation with Machine Learning Based Multivariate Polynomial Regression Model

Mathematics, 2022
Efficiency mapping has an important place in examining the maximum efficiency distribution as well as the energy consumption of designed electric motors at maximum torque and speed.
Oğuz Mısır, Mehmet Akar
doaj   +1 more source

Breakdown of the dipole approximation in core losses

Ultramicroscopy, 2011
The validity of the dipole approximations commonly used in the inelastic scattering theory for transmission electron microscopy is reviewed. Both experimental and numerical arguments are presented, emphasizing that the dipole approximations cause significant errors of the order of up to 25% even at small momentum transfer.
Löffler, S., Ennen, Inga, Tian, F., Schattschneider, P., Jaouen, N.   +4 more
openaire   +3 more sources

Analysis of Core Loss of Permanent Magnet Synchronous Machine for Vehicle Applications under Different Operating Conditions

Applied Sciences, 2020
Permanent magnet synchronous machines (PMSMs) are widely used in electric vehicles due to their high power density, high efficiency, etc. Core losses account for a significant component of the total loss in PMSMs.
Guohui Yang, Shuo Zhang, Chengning Zhang
doaj   +1 more source