Results 21 to 30 of about 18,597 (263)

Multi-objective optimal design of permanent magnet eddy current retarder based on NSGA-II algorithm

Energy Reports, 2022
As a new type of vehicle auxiliary braking device, permanent magnet eddy current retarder has a wide application prospect. In this paper, the linear layer analysis method and non-dominated sorting genetic algorithm-II (NSGA-II) are combined to optimize ...
Bowen Niu, Dazhi Wang, Pengyi Pan
doaj   +1 more source

A correction method for the frequency dependence of eddy current loss power of converter transformer

Diance yu yibiao
At present, the eddy current loss of the converter transformer is estimated based on an extrapolation method recommended by the IEC-61378-2 standard and GB/T 18494.2 standard. However, practical measurements already show the recommended method has a poor
ZHENG Xin, MA Yongchao, YU Wenjing, PENG Tao, MA Binqi, LI Shisong   +5 more
doaj   +1 more source

Eddy current loss analysis of underwater wireless power transfer systems with misalignments

AIP Advances, 2018
Underwater wireless power transfer (WPT) has gained a lot of popularity in recent years. In the seawater environment, the electrical conductivity is non-negligible compared with that in the air.
Zhengchao Yan, Baowei Song, Kehan Zhang, Haibing Wen, Zhaoyong Mao, Yuli Hu   +5 more
doaj   +1 more source

Study of Rotor Slot Wedge Eddy Current Loss of Nuclear Power Turbo-generator under Negative Sequence Operation

Journal of Harbin University of Science and Technology, 2018
In order to study the generator rotor slot wedge eddy current loss under different conditions . The 1407MVA turbo generator at half speed is researched as an example. Mathematical model is established in 2D electromagnetic field.
GE Bao-jun, ZHOU Jia-ju, WANG Li-kun, TAO Da-jun, LI Meng-qiao, HAN Ji-chao   +5 more
doaj   +1 more source

Investigation of Eddy Current Loss and Structure Design with Magnetic-Thermal Coupling for Toothless BLDC High-Speed PM Motor

Machines, 2022
Brushless direct current (BLDC) permanent magnet (PM) synchronous motors are in high demand for ventilator applications owing to their high speed, high efficiency, and other significant features.
Jingjuan Du, Chaojiang Li, Jian Zhao, Hongge Ren, Kun Zhang, Xin Song, Lianzhi Chen, Sheng Yu, Yanqing Mi   +8 more
doaj   +1 more source

Analysis of AC winding loss of permanent magnet synchronous traction motor with high power

机车电传动, 2022
In a multiple-pole and high-power PMSTM with high fundamental frequency, the harmonic frequency of the internal magnetic field increases accordingly. The harmonic magnetic field will induce eddy current in the winding, resulting in high-frequency eddy ...
LI Xiangcheng, WANG Yingchun, NI Wei, WU Nan   +3 more
doaj  

A Comprehensive Investigation of Winding Eddy and Circulating Current Losses of Stator Iron Coreless PMBLDC Motors

Energies, 2023
A method is proposed to comprehensively study the eddy and circulating current losses of stator winding wound by multiple parallel strands, to further improve the power density of stator iron coreless permanent magnet brushless DC (PMBLDC) motors ...
Liu Yang, Jing Zhao, Wenqi Fu, Xiangdong Liu, Jianguo Zhu, Chao Ai   +5 more
doaj   +1 more source

Classical eddy current losses in soft magnetic composites [PDF]

Journal of Applied Physics, 2013
This paper deals with the problem of loss evaluation in Soft Magnetic Composites (SMCs), focusing on the classical loss component. It is known that eddy currents can flow in these granular materials at two different scales, that of the single particle (microscopic eddy currents) and that of the specimen cross-section (macroscopic eddy currents), the ...
Appino, Carlo, de La Barrière, Olivier, Fiorillo, Fausto, Lobue, Martino, Mazaleyrat, Frédéric, Ragusa, Carlo   +5 more
openaire   +4 more sources

Purification and preparation of Marchantia polymorpha Auxin Response Factor 2 for phase separation studies

FEBS Open Bio, EarlyView.
We describe detailed protocols for the purification and preparation of Marchantia polymorpha Auxin Response Factor 2 (MpARF2). This protein is fused to an MBP solubility tag and an mNG fluorescent tag and is purified from Escherichia coli. The presented procedures make it possible to study MpARF2 assemblies, which could arise from phase separation ...
Bas Janssen, Robin Romein, Willy A. M. van den Berg, Simon Lindhoud, Jan Willem Borst, Carlo P. M. van Mierlo   +5 more
wiley   +1 more source

Multi-field analysis of energy loss and temperature distribution in magnetic couplings

AIP Advances
The operation of magnetic couplings produces eddy current losses that lead to heat buildup. Excessive temperatures can demagnetize the couplings, ultimately causing transmission failure.
Shuangcheng Fu, Dong Yang, Zenghui Wu, Minghui Xu, Liang Tao, Faqi Zhou   +5 more
doaj   +1 more source