Results 71 to 80 of about 746 (206)
Active cogging torque construction by the weld slot design in a positioning servo system
IET Electric Power ApplicationsThe 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
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.This paper investigates the impact of sleeve segmentation on eddy‐current loss in permanent‐magnet (PM) machines with fractional‐slot concentrated‐windings (FSCW) under different stator MMF harmonics. The concept of equivalent sleeve segmentation is introduced.
Jianxing Zhao +4 more
wiley +1 more source
Investigation of the Factors Affecting the Cogging Torque of a Permanent Magnet Brushed DC Motor
Al-Iraqia Journal for Scientific Engineering ResearchCogging torque disadvantages permanent magnet DC motors (PMDC), creating vibration and audible noises. This research investigates the factors affecting the cogging torque of a permanent magnet-brushed DC motor used to operate automobile windshield ...
Aula Ghazi Salim , Amer Mejbel Ali
doaj +1 more source
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.In this paper, a new hybrid method named IDMO‐SAMTCN is introduced to reduce torque ripple in Permanent Magnet Synchronous Motors (PMSMs) used in electric vehicles. The method merges an Improved Dwarf Mongoose Optimisation algorithm for tuning PI controller parameters with a Supervised Attention‐based Multi‐scale Temporal Convolutional Network for ...
Vidyalakshmi Ravichandran +2 more
wiley +1 more source
Cogging Torque Reduction of Interior Permanent-Magnet Synchronous Motors by Finite-Element Method [PDF]
, 2013 The cogging torque of a permanent-magnet motor is an oscillatory torque that always induces vibration, acoustic noise, possible resonance and speed ripples, and its minimization is a major concern for electric motor designers.
Wan-Tsun Tseng +2 more
core
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 +4 more
doaj
EnergiesThis 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
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.An optimal pole number selection criterion is proposed to reducing low‐frequency cogging torque harmonics caused by nonideal permeance harmonics, where a smaller pole number yields lower harmonic amplitude. ABSTRACT Cogging torque is a key performance of permanent magnet synchronous machines (PMSMs) as a dominated component of torque pulsation and ...
Duo Wu +4 more
wiley +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
Cogging torque reduction in axial flux machines for small wind turbines [PDF]
, 2009 This paper presents a technique for cogging torque reduction in an axial-flux permanent-magnet (PM) generator suitable for use in a small wind turbine. These machines can be compact and have high power density; they are axially short with larger diameter
Hsieh, MF +7 more
core +1 more source