High-density permanent magnet machines

Ikariga, Atsushi; Shimoji, Hiroyasu; Todaka, Takashi; Enokizono, Masato

doi:10.3233/jae-2007-836

Cited by 6 publications

(2 citation statements)

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“…ecently, technology to generate a strong magnetic field have been the subject of considerable research [1,2]. In order to develop a higher magnetic flux density in the air gap, a flux concentration concept is one of the effective solutions.…”

Section: Introductionmentioning

confidence: 99%

Analytical computation of Flux Concentration PM Machines: Study of the influence of the magnets shape

Belguerras

Hadjout

Lubin

et al. 2012

2012 XXth International Conference on Electrical Machines

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An exact 2-dimensional analytical method for calculating the magnetic field distribution in a Flux Concentration Permanent Magnet Machines (FCPMM) with sector magnets is developed and validated. The ability of the model to determine the performances of rectangular magnets FCPMM is then analyzed. A parametric study showed that the analytical model can predict the torque with a reasonable precision. Hence, this model can usefully be used for optimization purposes where savings in computation time are needed.

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Section: Introductionmentioning

confidence: 99%

Analytical computation of Flux Concentration PM Machines: Study of the influence of the magnets shape

Belguerras

Hadjout

Lubin

et al. 2012

2012 XXth International Conference on Electrical Machines

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“…By using high co-energy permanent magnet (PM) to produce the magnetic field, PM machine can have the benefits of high output torque ability, high efficiency and high power density, thus the PM machines have been widely used for different energy conversion appliances [1][2][3][4]. However the material cost of rare earth PM is very high, which makes the cost of PM machine is high.…”

Section: Introductionmentioning

confidence: 99%

Design and performance analysis of a novel synchronous reluctance machine

Wang

Liu

et al. 2020

JAE

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To improve output torque ability and reduce torque ripple in traditional synchronous reluctance motor (TSynRM), a new synchronous reluctance motor (NSynRM) is proposed in this paper. The rotor of NSynRM is composed of both grainoriented silicon steel and non-oriented silicon steel. With the reasonable design of rotor structure, the torque of NSynRM has been improved and its torque ripple has been reduced greatly. Firstly, TSynRM and NSynRM are qualitatively compared by using the magnetic network method. Secondly, the main parameters of these two machines are optimized by using finite element method (FEM). Then the performance comparison between two optimized machines are carried out. Finally, the equivalent stress of these two machines at the maximum speed are analyzed. It can be seen that NSynRM can have 6.8% higher torque under rated load, 8% higher torque under maximum load, 17.5% wider constant torque operation region, and lower torque ripple compared with the TSynRM.

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