Slot-Less Torus Solid-Rotor-Ringed Line-Start Axial-Flux Permanent-Magnet Motor

Mahmoudi, Amin; Kahourzade, Solmaz; Rahim, N.A.; Hew, W.P.; Ershad, Nima Farrokhzad

doi:10.2528/pier12070308

Cited by 12 publications

(8 citation statements)

References 41 publications

(35 reference statements)

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“…A precise model is needed for the physical motor simulation to incorporate the essential dynamics of the motor [24][25][26][27][28][29]. The Finite Element Method can be one of the best choices for providing realistic and precise model [30][31][32][33].…”

Section: Finite Element Results and Analysismentioning

confidence: 99%

Analytical Design and Fem Verification of a Novel Three-Phase Seven Layers Switched Reluctance Motor

Siadatan¹,

Afjei²,

Torkaman³

2013

PIER

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Abstract-The purpose of this paper is to propose analytical and finite element method (FEM) designs of a novel three-phase Seven Layers Switched Reluctance Motor (SLSRM) for the applications which dictated by the performance with the total torque per volume as a key marker indicator. The introduced motor consists of seven magnetically independent stator layers, which each layer includes a set of 4 by 4 stator/rotor poles. In this SLSRM, the three layers are energized together to produce high torque and also decrease the torque ripple in comparison with the one layer conventional SRM. Since each layer has its independent phase in the motor, the isolation problem of coils and cooling troublesome existing in conventional SRMs is solved. In addition, these types of SLSRM have some other advantages, like simpler configuration, cooling in easier way, etc.. Firstly an analytical design is carried out to illustrate the design procedure and then threedimensional (3-D) magneto static simulation analysis of the SLSRM and the one layer SRM is performed using 3-D FEM, to obtain and verify the flux-linkage, flux density and torque profiles. Also, the proposed motor is compared with a conventional one layer SRM with a same size and volume.

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Section: Finite Element Results and Analysismentioning

confidence: 99%

Analytical Design and Fem Verification of a Novel Three-Phase Seven Layers Switched Reluctance Motor

Siadatan¹,

Afjei²,

Torkaman³

2013

PIER

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“…According to Equations (1) to (16), parameters often affect each other, varying simultaneously (for example D i , D o , and λ); therefore, the AFPM machine optimization is a non-linear problem. GA is a strong tool that can solve various complex and non-linear optimization problems [25,26].…”

Section: Genetic Algorithm and Optimizationmentioning

confidence: 99%

“…However, the externalrotor arrangement is considered especially advantageous where the space is limited, mechanical robustness is required and torque-tovolume ratio is crucial [15]. The double-sided slotted TORUS AFPM motors are the most frequently applied among the other configurations, chiefly because they are mechanically stronger and have higher power density [16]. Therefore, the design of a TORUS AFPM machine is considered in this work.…”

Section: Introductionmentioning

confidence: 99%

Design Optimization and Analysis of Afpm Synchronous Machine Incorporating Power Density, Thermal Analysis, and Back-Emf THD

Kahourzade¹,

Gandomkar²,

Mahmoudi³

et al. 2013

PIER

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Abstract-This paper presents the design and analysis of an inside-out axial-flux permanent-magnet (AFPM) synchronous machine optimized by genetic algorithm (GA) based sizing equation, finite element analysis (FEA) and finite volume analysis (FVA). The preliminary design is a 2-pole-pair slotted TORUS AFPM machine. The designed motor comprises sinusoidal back-EMF waveforms, maximum power density and the best heat removal. The GA is used to optimize the dimensions of the machine in order to achieve the highest power density. Electromagnetic field analysis of the candidate machines from GA with various dimensions is then put through FEA in order to obtain various motor characteristics. Based on the results from GA and FEA, new candidates are introduced and then put through FVA for thermal behavior evaluation of the designed motors. Techniques like modifying the winding configuration and skewing the permanent magnets are also investigated to attain the most sinusoidal back-EMF waveform and reduced cogging torque. The performance of the designed 1 kW, 3-phase, 50 Hz, 4-pole AFPM synchronous machine is tested in simulation using FEA software. It is found that the simulation results fully agree with the designed technical specifications. It is also found from FVA results that the motor temperature reaches at highest temperature to 87 • C at the rated speed and full load under steady state condition.

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“…Permanent-magnet (PM) motors have been applied more and more widely, due to theirs high power density, high reliability, and high efficiency [1][2][3][4]. However, the heat problem of the motor is very serious following the upgrade of motor performance.…”

Section: Introductionmentioning

confidence: 99%

Computational Fluid Dynamics Thermal Prediction of Fault-Tolerant Permanent-Magnet Motor Using a Simplified Equivalent Model

Zhao¹,

Chen²,

Ji³

2015

PIER M

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Abstract-The thermal characteristic of a new out-rotor fault-tolerant permanent-magnet (FTPM) motor is modeled and predicted in this paper. Flow characteristics and thermal characteristics of this FTPM motor are calculated by using computational fluid dynamics method. The key is that an equivalent model is developed to replace the real motor, offering the merits of simplified meshing progress and convenient thermal calculation. Furthermore, the effectiveness of the developed equivalent model has been verified by simulation and experiment. In addition, the temperature distribution of the entire motor is given by using equivalent models. The results can be provided to improve motor thermal performance.

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Slot-Less Torus Solid-Rotor-Ringed Line-Start Axial-Flux Permanent-Magnet Motor

Cited by 12 publications

References 41 publications

Analytical Design and Fem Verification of a Novel Three-Phase Seven Layers Switched Reluctance Motor

Analytical Design and Fem Verification of a Novel Three-Phase Seven Layers Switched Reluctance Motor

Design Optimization and Analysis of Afpm Synchronous Machine Incorporating Power Density, Thermal Analysis, and Back-Emf THD

Computational Fluid Dynamics Thermal Prediction of Fault-Tolerant Permanent-Magnet Motor Using a Simplified Equivalent Model

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