Results 1 to 10 of about 180,822 (211)

Impact of Flux-Modulated Rotor Design on Special Flux Density Harmonics in PS-DSPM for Cogging Torque Minimization [PDF]

Journal of Applied Science and Engineering
High cogging torque caused by a fluctuating magnetic flux distribution in the partitioned stator doubly salient permanent magnet machines (PS-DSPM), due to their double air gap design, limits their application despite excellent torque density ...
Wilaiphorn Nokklang, Pattasad Saengwong, Apirat Siritaratiwat, Warat Sriwannarat   +3 more
doaj   +2 more sources

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   +2 more sources

Cogging Torque Minimization Strategies in Interior Permanent Magnet Synchronous Motors

IEEE Access
Cogging torque in interior permanent magnet synchronous motors (IPMSMs) is caused by variation in magnetic reluctance between permanent magnets and stator slot openings.
Milad Bahrami-Fard, Jingchen Liang, Pengyuan Chen, Colbey Hair, Mehdi Moallem, Steven Pekarek, Babak Fahimi   +6 more
doaj   +2 more sources

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

Reduction of Cogging Torque in Permanent Magnet Motors

Journal of the Magnetics Society of Japan, 2007
EPS (Electric Power Steering) enables an increase in automotive fuel efficiency by 3-5% and contributes to the protection of the environment by eliminating the oil medium used in conventional hydraulic power steering. For this reason a sharp increase in demand for EPS is expected.
openaire   +2 more sources

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

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

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