Results 21 to 30 of about 170,878 (300)

Torque Improvement of Spoke-type Permanent Magnet Motor with Auxiliary Stator Using Harmonic Current Control Strategy

CES Transactions on Electrical Machines and Systems, 2023
The spoke-type permanent magnet motor with auxiliary stator exhibits high torque performance owing to the flux focus effects. To further improve its torque density, this paper proposes a control method by using harmonic current strategy.
Hao Wu, Wenliang Zhao, Zheng Li, Xiuhe Wang   +3 more
doaj   +1 more source

Improving the torque generation in self-sensing BLDC drives by shaping the current waveform [PDF]

, 2016
Brushless DC drives are widely used in different fields of application because of their high efficiency and power density. Torque ripple can be considered one of the drawbacks of these drives.
Darba, Araz, De Belie, Frederik, Manzolini, Virginia   +2 more
core   +1 more source

Optimized design of a high-power-density PM-assisted synchronous reluctance machine with ferrite magnets for electric vehicles

Archives of Electrical Engineering, 2017
This paper proposes a permanent magnet (PM)-assisted synchronous reluctance machine (PMASynRM) using ferrite magnets with the same power density as rareearth PM synchronous motors employed in Toyota Prius 2010.
Liu Xiping, Li Ya, Liu Zhangqi, Ling Tao, Luo Zhenhua   +4 more
doaj   +1 more source

CoB/Ni-Based Multilayer Nanowire with High-Speed Domain Wall Motion under Low Current Control

, 2012
The spin-transfer torque motion of magnetic domain walls (DWs) in a CoB/Ni-based nanowire driven by a low current density of (1.12\pm0.8)\times10^{11} A m^{-2} has been observed indirectly by magnetotransport measurements.
Awano, Hiroyuki, Ngo, Duc-The, Watanabe, Norihito   +2 more
core   +1 more source

Deterministic Domain Wall Motion Orthogonal To Current Flow Due To Spin Orbit Torque. [PDF]

, 2014
Spin-polarized electrons can move a ferromagnetic domain wall through the transfer of spin angular momentum when current flows in a magnetic nanowire.
Bhowmik, Debanjan, Bokor, Jeffrey, Keating, David, Lee, OukJae, Nowakowski, Mark E, Salahuddin, Sayeef, Wong, Mark, You, Long   +7 more
core   +3 more sources

Design and optimization of yokeless magnetic gear with asymmetric Halbach permanent magnet array for electric vehicle powertrain

IET Renewable Power Generation, 2022
In this paper, a novel 3/27/24 (pole pairs of inner rotor permanent magnet [PM]s/modulator/outer rotor PMs) high torque density yokeless magnetic gear with asymmetric Halbach PM array is presented and optimized for electric vehicle powertrain. The key is
Yuanxi Chen, Xing Zhao, Siulau Ho, Shuangxia Niu, Weinong Fu   +4 more
doaj   +1 more source

New Topologies of High Torque Density Machine Based on Magnetic Field Modulation Principle

CES Transactions on Electrical Machines and Systems, 2023
With the increasing demand for high torque density in motors, more and more new topologies emerge. Furthermore, the magnetic field modulation principle is widely concerned and has evolved into an effective analysis method for studying the new motor ...
Yan Yue, Shaofeng Jia, Deliang Liang
doaj   +1 more source

Spin-orbit torque in completely compensated synthetic antiferromagnet

, 2018
Synthetic antiferromagnets (SAF) have been proposed to replace ferromagnets in magnetic memory devices to reduce the stray field, increase the storage density and improve the thermal stability.
Liao, L. Y., Pan, F., Shi, G. Y., Song, C., Wang, Y. Y., Wu, H. Q., Zhang, P. X., Zhang, R. Q.   +7 more
core   +1 more source

Light Fan Driven by a Relativistic Laser Pulse [PDF]

, 2014
When a relativistic laser pulse with a high photon density interacts with a specially tailored thin foil target, a strong torque is exerted on the resulting spiral-shaped foil plasma, or “light fan.” Because of its structure, the latter can gain ...
Shen, B, Shi, Y, Wang, W, Xu, Z, Zhang, L, Zhang, X   +5 more
core   +2 more sources

Single crystals of LnFeAsO1-xFx (Ln=La, Pr, Nd, Sm, Gd) and Ba1-xRbxFe2As2: growth, structure and superconducting properties [PDF]

, 2009
A review of our investigations on single crystals of LnFeAsO1-xFx (Ln=La, Pr, Nd, Sm, Gd) and Ba1-xRbxFe2As2 is presented. A high pressure technique has been applied for the growth of LnFeAsO1-xFx crystals, while Ba1-xRbxFe2As2 crystals were grown using ...
Abakumov, Alireza, Angst, Angst, B. Batlogg, Blonder, Bos, Bukowski, Canfield, Chen, Chen, Cheng, D. Daghero, Ding, Dubroka, Eisaki, Eskildsen, Evtushinsky, Fang, Fischer, Fletcher, Gonnelli, Gonnelli, Gurevich, H. Keller, Hunte, I. Maggio-Aprile, Igawa, J. Karpinski, Jaroszynski, Jeevan, Jia, Jia, K. Rogacki, Kamihara, Kashiwaya, Khasanov, Kogan, Kogan, Kohout, Lee, Leithe-Jasper, Li, Luetkens, M. Tortello, Matano, N.D. Zhigadlo, Ni, Okazaki, P. Moll, Park, Plecenik, Qi, R. Gonnelli, R. Puzniak, Rammer, Ren, Ren, Ren, Rotter, S. Katrych, S. Weyeneth, Samuely, Sasmal, Sefat, Shan, Takahashi, Torikachvili, Wang, Welp, Wenz, Werthamer, Weyeneth, Weyeneth, Wu, Y. Fasano, Yin, Z. Bukowski, Zhigadlo, Zhu, Ø. Fischer   +80 more
core   +1 more source