Results 91 to 100 of about 6,360 (226)
A general framework for the analysis and design of tubular linear permanent magnet machines [PDF]
, 1999 A general framework for the analysis and design of a class of tubular linear permanent magnet machines is described. The open-circuit and armature reaction magnetic field distributions are established analytically in terms of a magnetic vector potential ...
Howe, D., Jewell, G.W., Wang, J.B.
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IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.This study proposes a hybrid topology optimisation framework for permanent magnet motors that integrates the Boolean Geometry Projection (BGP) method with a Gaussian‐based ON‐OFF method. The proposed approach automatically generates manufacturable and diverse magnet structures such as U‐, V‐ and double V‐shapes, achieving higher average torque and ...
Yoshitsugu Otomo +2 more
wiley +1 more source
PM fractional machines adopting bonded magnets: effect of different magnetizations on the energetic performance [PDF]
, 2012 The adoption of Permanent Magnets in small brushless machines for automotive applications is becoming frequent. Some research on bonded magnets is being carried on to substitute the ferrites.
Ferraris, Luca +3 more
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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
Comparative Analysis of Electromagnetic Performance of PM and HTS Excited Flux Switching Machines
IET Science, Measurement &Technology, Volume 20, Issue 1, January/December 2026.We introduce and validate an innovative generator topology of a flux‐switching machine (FSM) utilising high‐temperature superconducting (HTS) stator‐side field coils (HTS‐FSM). The results demonstrate that the electromagnetic performance of the HTS‐FSM offers a viable, sustainable and geopolitically secure foundation for the development of next ...
Cezary Jędryczka +2 more
wiley +1 more source
EnergiesThe direct-drive type high-torque-density motor is one of the most promising solutions of electric propulsion for aircraft. The cogging torque of the direct-drive motor causes torque ripple, vibration, and noise, which seriously affect the stability and ...
Haomin Li +4 more
doaj +1 more source
Brushless Direct Current Electric Motor Design with Minimum Cogging Torque [PDF]
, 2014 Cogging torque is one of the factors that influence electric motor efficiency. Many methods have been used to reduce the cogging torque. One of the methods is the determination of the number of slots and poles fraction.
Inayati, I. (Inayati) +2 more
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Evaluation of the magnetization direction effects on ferrite PM brushless fractional machines [PDF]
, 2012 Permanent magnets are frequently adopted in small brushless machines for automotive applications. Normally anisotropic ferrites, but some research on bonded magnets is being carried on.
Ferraris, Luca +3 more
core +1 more source
World Electric Vehicle JournalSpoke-type permanent magnet (STPM) machines have high power density and low cost due to flux concentrated effect and high air-gap flux density, but they can cause high cogging torque and torque ripple.
Jinlin Huang, Chen Wang
doaj +1 more source
Cogging torque comparison of Interior Permanent Magnet Synchronous Generators with different stator windings [PDF]
, 2017 This paper presents the comparison between the cogging torques produced by four IPMSGs (Interior Permanent Magnet Synchronous Generators) with different stator winding configurations.
Caruso, M. +5 more
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