Results 121 to 130 of about 338,387 (269)

Influence of Different Rotor Teeth Shapes on the Performance of Flux Switching Permanent Magnet Machines Used for Electric Vehicles

Energies, 2014
This paper investigated a 12-slot/11-pole flux switching permanent magnet (FSPM) machine used for electric vehicles (EVs). Five novel rotor teeth shapes are proposed and researched to reduce the cogging torque and torque ripple of the FSPM machine. These
Jing Zhao, Yashuang Yan, Bin Li, Xiangdong Liu, Zhen Chen   +4 more
doaj   +1 more source

Comparison and Design Optimization of a Five-Phase Flux-Switching PM Machine for In-Wheel Traction Applications [PDF]

, 2019
A comparative study of five-phase outer-rotor flux-switching permanent magnet (FSPM) machines with different topologies for in-wheel traction applications is presented in this paper.
Chen, Hao, Demerdash, Nabeel, EL-Refaie, Ayman M., He, Jiangbiao, Liu, Xiangdong, Zhao, Jing   +5 more
core   +1 more source

Active cogging torque construction by the weld slot design in a positioning servo system

IET Electric Power Applications
The cogging torque is usually considered as an adverse effect of the PM machine servo system. This paper presents a new perspective that the cogging torque can be exploited in many practical situations as long as the speed ripple can be suppressed.
Minghao Tong, Yuhang Ding, Le Sun
doaj   +1 more source

Suppression of Cogging Torque for Line-start Permanent Magnet Synchronous Motor

Journal of Harbin University of Science and Technology
The stator and rotor of line-start permanent magnet synchronous motor ( LSPMSM) are slotted on both sides, which greatly increases the difficulty of analyzing the characteristics of cogging torque of LSPMSM and studying its suppression methods.
CHENG Haojie, TANG Xu, MA Zhaoxing, LI Yongxiao, WANG Ruihua   +4 more
doaj   +1 more source

Minimizing cogging torque in permanent magnet alternators

, 2020
Sürekli mıknatıslı üreteçler özellikle rüzgar türbinleri olmak üzere elektrik makinelerinde çok geniş bir alanda kullanılmaktadır. Ancak rotor yüzeyinde bulunan sürekli mıknatıslardan ötürü stator olukları ile etkileşimi sırasında vuruntu momenti oluşmaktadır. Bu sorun bu tip üreteçlerin fonksiyonelliğini olumsuz yönde etkileyen ana problemdir.
openaire   +1 more source

Cogging Torque Reduction of a Flux-Intensifying Permanent Magnet-Assisted Synchronous Reluctance Machine with Surface-Inset Magnet Displacement

Energies
This paper investigates the impact of permanent magnet (PM) displacement and flux barrier extension on cogging torque in flux-intensifying permanent magnet-assisted synchronous reluctance machines (FI-PMa-SynRMs) with surface-inset PMs. Unlike prior work
Mihály Katona, Tamás Orosz
doaj   +1 more source

Analysis and Reduction of Cogging Torque of Permanent Magnet Synchronous Wind Generators Based on the Magnetic Field Modulation Mechanism

CES Transactions on Electrical Machines and Systems
In this paper, a magnetic field modulation model considering the influence of phase angles is established for the analysis and weakening of the cogging torque of the permanent magnet synchronous wind generations.
Zexing Li, Chao Liu, Yiwen Fan, Zixuan Zhang, Jiakuan Xia   +4 more
doaj   +1 more source

Cogging Torque Reduction in Permanent Magnet Brushless Motors

IEEJ Transactions on Industry Applications, 2002
This paper studies properties and reducing techniques of cogging torque in brushless motors with surface permanent magnets and winding slots. Desirable combination between stator slots and magnet poles, and relation between the slots and added notches are shown.
openaire   +2 more sources

Analysis and Design of a Permanent-Magnet Outer-Rotor Synchronous Generator for a Direct-Drive Vertical-Axis Wind Turbine

Iranian Journal of Electrical and Electronic Engineering, 2014
In Permanent-Magnet Synchronous Generators (PMSGs) the reduction of cogging torque is one of the most important problems in their performance and evaluation. In this paper, at first, a direct-drive vertical-axis wind turbine is chosen.
H. A. Lari, A. Kiyoumarsi, A. Darijani, B. Mirzaeian Dehkordi, S. M. Madani   +4 more
doaj  

Design and Investigation of a Low-Cogging-Torque and High-Torque-Density Double-Sided Permanent Magnet Motor

Energies
In this paper, a high-torque and low-cogging-torque double-sided permanent magnet (DS-PMFM) motor is proposed. The research focuses on adopting structure of stator split-tooth and unequal-width rotor poles, enabling the motor to have high output torque ...
Yuting Zhou, Zixuan Xiang, Qian Liu, Suiyuan Gui   +3 more
doaj   +1 more source