Results 31 to 40 of about 71,479 (309)

A Novel Magnet-Axis-Shifted Hybrid Permanent Magnet Machine for Electric Vehicle Applications

open access: yesEnergies, 2019
This paper proposes a novel magnet-axis-shifted hybrid permanent magnet (MAS-HPM) machine, which features an asymmetrical magnet arrangement, i.e., low-cost ferrite and high-performance NdFeB magnets, are placed in the two sides of a “▽„ ...
Ya Li   +4 more
doaj   +1 more source

Three-phase modular permanent magnet brushless machine for torque boosting on a downsized ICE vehicle [PDF]

open access: yes, 2005
The paper describes a relatively new topology of 3-phase permanent magnet (PM) brushless machine, which offers a number of significant advantages over conventional PM brushless machines for automotive applications, such as electrical torque boosting at ...
Howe, D., Wang, J.B., Xia, Z.P.
core   +1 more source

Analysis of cogging torque in brushless machines having nonuniformly distributed stator slots and stepped rotor magnets [PDF]

open access: yes, 2005
A simple analytical technique is proposed for synthesizing the cogging torque waveform of a permanent magnet brushless machine from the cogging torque waveform that is associated with a single stator slot.
Howe, D.   +3 more
core   +1 more source

On Accuracy of Virtual Signal Injection based MTPA Operation of Interior Permanent Magnet Synchronous Machine Drives [PDF]

open access: yes, 2017
This correspondence analyzes the accuracy of maximum torque per ampere (MTPA) operations of interior permanent magnet machines based on the technique described in [T. Sun, J. Wang, and X.
Koc, M., Sun, T., Wang, J.
core   +1 more source

Reduction of Unipolar Leakage Flux and Torque Ripple in Consequent-pole PM Vernier Machine

open access: yesCES Transactions on Electrical Machines and Systems, 2023
This paper proposes a new consequent-pole permanent magnet vernier machine (CPMVM), which can be regarded as a combination of two conventional CPMVM with opposite polarities.
Liang Xu   +3 more
doaj   +1 more source

Effect of optimal torque control on rotor loss of fault-tolerant permanent-magnet brushless machines [PDF]

open access: yes, 2002
A faulted phase in a fault-tolerant permanent-magnet brushless machine can result in significant torque ripple. However, this can be minimized by using an appropriate optimal torque control strategy.
Atallah, K.   +3 more
core   +1 more source

Permanent Magnet Machines for High-Speed Applications [PDF]

open access: yesWorld Electric Vehicle Journal, 2022
This paper overviews high-speed permanent magnet (HSPM) machines, accounting for stator structures, winding configurations, rotor constructions, and parasitic effects. Firstly, single-phase and three-phase PM machines are introduced for high-speed applications.
He, T.   +7 more
openaire   +4 more sources

Tubular modular permanent-magnet machines equipped with quasi-Halbach magnetized magnets - Part II: Armature reaction and design optimization [PDF]

open access: yes, 2005
Using the analytical formulas derived in Part I for predicting the magnetic field distribution, thrust force, and electromotive force of a three-phase tubular modular permanent-magnet machine equipped with quasi-Halbach magnetized magnets, this paper ...
Howe, D., Wang, J.B.
core   +1 more source

Analysis of a Fault-Tolerant Module-Combined Stator Permanent Magnet Synchronous Machine

open access: yesIEEE Access, 2020
To solve the problems of large-size machining and complex control of fault-tolerant permanent magnet machines, a module-combined stator permanent magnet synchronous machine is proposed in this paper.
Bingyi Zhang, Baoping Gan, Qiaoshan Li
doaj   +1 more source

Design and analysis of a new multiphase polygonal-winding permanent-magnet brushless dc machine [PDF]

open access: yes, 2002
In this paper, a new multiphase polygonal-winding permanent-magnet brushless dc (PMBDC) machine is proposed anal analyzed. The originality of the proposed machine lies on the multiphase polygonal-winding stator anal the surface-inset permanent-magnet ...
Chan, CC   +4 more
core   +2 more sources

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