Axial-flux permanent magnet motor for direct-drive elevator systems without machine room

Ficheux, R.L.; Caricchi, F.; Crescimbini, Fabio; Honorati, O.

doi:10.1109/ias.2000.881071

Cited by 29 publications

(15 citation statements)

References 6 publications

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“…Cross-sectional area of one rotor bar A cu Cross-sectional area of all conductors in one slot A er Cross-sectional area of rotor ring A iew , A oew Cross-sectional area of heat transferring in the inner / outer end winding B av Specific magnetic loadings b 10 ,b 11 ,b 12 ,b 20 ,b 21 ,b 22 Stator and rotor slot widths as shown in Figure 1 b t,i…”

Section: Specific Electric Loadings a Bmentioning

confidence: 99%

“…But, in the home apparatus where low cost is important, this way cannot work. There is another study that proposes to use large-diameter machine shaft in large-diameter motors to overcome bending deformation of the rotor disc [22]. There is just one paper that has proposed a method for overcoming this challenge with low air-gap length for domestic applications [14].…”

Section: Introductionmentioning

confidence: 99%

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Design, analysis, and implementation of extra low air-gap single-phase axial-flux induction motors for low-cost applications

Tootoonchian

Nasiri‐Gheidari

Lesani

2016

Int. Trans. Electr. Energ. Syst.

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Summary In this paper, design and prototyping of two‐speed capacitor‐run single‐phase axial‐flux induction motor (AFIM) for direct‐drive applications is presented. The proposed structure has single stator‐single rotor configuration with high magnetic pull between the stator and rotor, which may compel rotor to lock. Although the most efficient method to overcome this problem is using a second rotor or stator in the mirror with the first one, it is not applicable in low‐cost applications. So, in this paper, two new and fast construction techniques are proposed to fabricate an AFIM with extra low air‐gap length and minimum cost. Beside design and optimization process, a thermal equivalent circuit considering radial and lateral heat transfers is proposed. Then different losses and thermal resistances are exactly calculated to estimate the temperature rise of different motor parts and the maximum specific magnetic and electric loadings. Then, motor performance is evaluated using three‐dimensional time‐stepping finite‐element analysis. Finally, a comprehensive fabrication algorithm for AFIMs is presented, and a prototype of the studied motor is fabricated and tested. The experimental results validate the design, optimization, thermal model, and finite element simulations. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Specific Electric Loadings a Bmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design, analysis, and implementation of extra low air-gap single-phase axial-flux induction motors for low-cost applications

Tootoonchian

Nasiri‐Gheidari

Lesani

2016

Int. Trans. Electr. Energ. Syst.

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“…Within the broad category of PM machines several distinct magnetic circuit configurations can be identified, and these include the axial-field PM machine (AFPM) topology, which in the recent years has drawn substantial interest concerning a number of various machine applications [16][17][18][19][20][21][22]. Adoption of such a particular PM machine arrangement for directdriven generators to be used in power supply units should be prompted by the recognition of unique characteristics such as much higher torque per volume density and higher efficiency compared to conventional machine topologies [23][24][25].…”

Section: Three-phase Active Rectifiermentioning

confidence: 99%

Sinusoidal current shaping in variable-speed distributed generating units with low-resolution position sensors

Lidozzi

Calzo

Solero

et al. 2012

2012 IEEE Energy Conversion Congress and Exposition (ECCE)

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The paper deals with a fast and reliable algorithm for position and speed estimation using low-resolution position sensors in PMSM driven boost-rectifier for distributed generating units. The proposed algorithm does not require a high performance control platform making it suitable for industrial implementation. Different solutions have been analyzed considering also the available peripherals in mixedsignal Digital Signal Processors and Microcontrollers.

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“…I N THE LAST few years, axial-flux machines are becoming a very attractive technological solution for certain applications such as electric traction or elevation, which require to the electrical machine high torque, high efficiency, compactness, and shape flexibility [1], [2]. Among these machines, the most relevant topology is the permanent-magnet synchronous machine, which is the case study of this paper.…”

Section: Introductionmentioning

confidence: 99%

Axial-Flux-Machine Modeling With the Combination of FEM-2-D and Analytical Tools

Egea

Almandoz

Poza

et al. 2012

IEEE Trans. on Ind. Applicat.

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This paper deals with the development of analysis tools for axial-flux permanent-magnet machines. Normally, the study of this kind of machine involves three-dimensional (3-D) finite element method (FEM) (FEM-3-D) due to the 3-D nature of the magnetic problem. As it is widely known, the FEM-3-D software could take too much time, and both definition and solving processes of the problem may be very arduous. In this paper, a novel analysis procedure for axial-flux synchronous machines is proposed. This method consists in the combination of 2-D FEM simulations with analytical models based on the Fourier-series theory. The obtained results prove that the proposed method could be a very interesting option in terms of time and accuracy.Index Terms-Analytic models, axial-flux machines, finite element method (FEM), Fourier series.

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Axial-flux permanent magnet motor for direct-drive elevator systems without machine room

Cited by 29 publications

References 6 publications

Design, analysis, and implementation of extra low air-gap single-phase axial-flux induction motors for low-cost applications

Design, analysis, and implementation of extra low air-gap single-phase axial-flux induction motors for low-cost applications

Sinusoidal current shaping in variable-speed distributed generating units with low-resolution position sensors

Axial-Flux-Machine Modeling With the Combination of FEM-2-D and Analytical Tools

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