Optimisation method to maximise torque density of high-speed slotless permanent magnet synchronous machine in aerospace applications
Sign Up to like & getrecommendations! Published in 2018 at "Iet Electric Power Applications"
DOI: 10.1049/iet-epa.2017.0873
Abstract: This study presents an optimisation method for slotless permanent magnet synchronous machines to maximise torque density. The slotless structure with outer rotor and Halbach array has been selected to limit iron losses, torque ripple, cogging… read more here.
Keywords: permanent magnet; magnet synchronous; torque density; optimisation method ... See more keywords
Evaluation of Torque-Dense Electric Machine Technology for Off-Highway Vehicle Electrification
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Industry Applications"
DOI: 10.1109/tia.2023.3335890
Abstract: Electrification of off-highway vehicles offers the benefits of improved energy efficiency, enhanced control, and reduction in greenhouse gas emissions. However, progress towards electrification has been limited by the low torque density (30 $\text{kNm/m}^{3}$) of conventional… read more here.
Keywords: inline formula; electric machine; torque; tex math ... See more keywords
High-Torque Density and Low-Torque Ripple- Oriented Design Method for Multi-Harmonics Surface-Mounted PM Vernier Machine
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Industry Applications"
DOI: 10.1109/tia.2025.3540726
Abstract: Multi-harmonics surface-mounted PM Vernier machine (SPMVM) has gained growing attention owing to the simple structure and high torque density. Multiple flux density harmonics created by the non-uniform modulation teeth together produce average torque. However, it… read more here.
Keywords: high torque; torque ripple; torque; harmonics ... See more keywords
A Consequent Pole Single Rotor Single Stator Vernier Design to Effectively Improve Torque Density of an Industrial PM Drive
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2022.3153806
Abstract: The vernier machine can utilize magnetic-gear effect, which conspicuously improves the torque production over other type of synchronous machines. However, a dual-rotor/dual-stator structure enabled high torque density vernier design is often unfavorable for industrial applications,… read more here.
Keywords: machine; torque density; stator; consequent pole ... See more keywords
A Dual-Rotor Axial-Flux PM Motor With Equidirectional Toroidal Winding and 3-Slot/4-Pole Unit Block for Torque Density Improvement
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Industrial Electronics"
DOI: 10.1109/tie.2024.3384524
Abstract: In this article, a dual-rotor axial-flux permanent magnet motor (AFPMM) with equidirectional toroidal winding and 3-slot/4-pole (ETW-3S4P) unit block is proposed to improve the torque density. The advantages of the proposed motor in improving the… read more here.
Keywords: torque density; motor; slot pole; dual rotor ... See more keywords
Improved Torque Capacity for Flux Modulated Machines by Injecting DC Currents Into the Armature Windings
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2017.2653194
Abstract: Flux modulated machine (FMM) comprises three parts: a conventional stator with armature winding, a rotor with permanent magnet, and iron flux modulation pole. Thanks to the inherent magnetic gearing effect, FMMs have been gaining more… read more here.
Keywords: sinusoidal current; flux modulated; improved torque; flux ... See more keywords
Ideal Radial Permanent Magnet Coupling Torque Density Analysis
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2017.2668139
Abstract: This paper derives the closed form 3-D analytical torque equations for an ideal radial Halbach rotor magnetic coupling. The performance of the radial Halbach coupling is then compared with an ideal axial Halbach rotor coupling.… read more here.
Keywords: radial permanent; permanent magnet; torque density; magnet coupling ... See more keywords
A High-Torque-Density Variable-Flux Memory Machine Utilizing Novel (Ce, Nd)-Fe-B Magnets
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2020.3006272
Abstract: Variable-flux memory machines (VFMMs) are considered as promising candidate in adjustable speed drive applications. However, the exploration of VFMMs with acceptable magnetization state (MS) regulating current and high-torque density is still a challenging issue. This… read more here.
Keywords: flux memory; torque density; variable flux; high torque ... See more keywords
A Novel Concentrated-Winding Vernier Pseudo-Direct-Drive Permanent-Magnet Machine
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Magnetics"
DOI: 10.1109/tmag.2021.3100058
Abstract: The demand for low-speed (LS) and high-torque electrical machines is increasing in different applications. Previous research showed that dual-stator magnetically geared machines, such as Vernier pseudo-direct-drive machines (VPDDs), can have a high torque density and… read more here.
Keywords: end winding; density; direct drive; torque density ... See more keywords
Design and Manufacture of a High-Torque-Density Permanent Magnet Traction Motor for Light-Duty Electric Vehicles
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Transactions on Transportation Electrification"
DOI: 10.1109/tte.2023.3283777
Abstract: Transportation electrification has greatly altered the way people live, leading to light-duty vehicles such as electric bicycle, wheelchair, and scooter, which brings great convenience to daily travel. The ability of direct drive and large torque… read more here.
Keywords: torque density; motor; magnet; light duty ... See more keywords
Development of a PM Spherical Actuator With Tiltable Stator for High Torque Density
Sign Up to like & getrecommendations! Published in 2025 at "IEEE Transactions on Transportation Electrification"
DOI: 10.1109/tte.2025.3550675
Abstract: Spherical actuators are active joints that rotate around three directions and are more compact than conventional joints using multiple single-axis motors connected in series. However, spherical electromagnetic actuators have low torque density, particularly in tilt… read more here.
Keywords: stator; actuator; torque; spherical actuator ... See more keywords