Results 71 to 80 of about 27,076 (217)

Cogging Torque Reduction of Brushless DC Motor: Investigating the Efficacy of Ra-dial Pole Shaping Technique with Novel Bump-Shaped Rotor Pole

open access: yesJournal of Studies in Science and Engineering
With the rising demand for high-performance motors in electrical vehicle applications, permanent magnet brushless DC motors are a promising solution due to their various attractive features.
Tanuj Jhankal, Amit N. Patel
semanticscholar   +1 more source

Magnetic Field Analysis of Multi‐Segment Modulated Pole Motors Based on the Air Gap Domain Multi‐Harmonic Method

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
A subdomain analytical model for multi‐harmonic air‐gap subdomains is proposed to predict motor magnetic fields containing complex harmonic components. Theoretical analysis demonstrates that this model effectively reduces the matrix dimension during analytical computation, resulting in lower computational time costs for the same harmonic order while ...
Kun Wang, Yong Han
wiley   +1 more source

ANALYSIS OF COGGING TORQUE REDUCTION FROM DESIGN COMPUTATIONAL PERMANENT MAGNET SYNCHRONOUS MOTOR WITH TAGUCHI METHOD

open access: yesJurnal rekayasa mesin
Permanent Magnet Synchronous Motor (PMSM) applications include electric vehicles, industrial pumps, wind turbines, aerospace technology, and many others. In this study, cogging torque is the central aspect of the discussion, which is the motor model, the
F. Wahyuni   +3 more
semanticscholar   +1 more source

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

open access: yesIET 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

Investigation of the Factors Affecting the Cogging Torque of a Permanent Magnet Brushed DC Motor

open access: yesAl-Iraqia Journal for Scientific Engineering Research
Cogging 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

Force Analysis and Torque Production of the Doubly Salient Parallel Path Magnetic Machine

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This paper presents an in‐depth mathematical analysis of torque and force production mechanisms in the Doubly Salient Parallel Path Magnetic Motor (DS‐PPMM). Electromagnetic force distribution, torque ripple characteristics and the contributions of magnetic salience are analysed through analytical modelling and verified by finite element analysis.
Maryam Salehi, Madhav Manjrekar
wiley   +1 more source

Suppression of DC Winding Current Harmonics in Wound‐Field Machines Under PWM Excitation by Using Active Voltage Injection and LC Low‐Pass Filters

open access: yesIET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
In this paper, the LC low‐pass filter is designed and connected in parallel with the DC winding of the MFMWF machine to suppress the high‐frequency sideband harmonics in the DC winding current for the first time. The suppression effect is validated by experiments.
Zhimian Wang   +5 more
wiley   +1 more source

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

open access: yesIranian 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  

Effects of Segmentations on Sleeve Eddy‐Current Losses of FSCW Permanent‐Magnet Machine Considering Stator MMF Harmonics

open access: yesIET 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

Analysis for cogging Torque Reduction Method of Outer Rotor Hybrid Excitation Flux Switching Machine

open access: yesIOP Conference Series: Earth and Environment
Cogging torque, caused by the interaction of stator slots and rotor magnets, degrades motor performance by producing noise, vibration, and torque ripple even without current in the windings.
Saira Soomro   +3 more
semanticscholar   +1 more source

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