Analysis of Semipermeable Containment Sleeve Technology for High-Speed Permanent Magnet Machines

Yon, Jason; Mellor, P.H.; Wróbel, Rafał; Booker, Julian D; Burrow, Steve G

doi:10.1109/tec.2012.2202232

Cited by 40 publications

(16 citation statements)

References 15 publications

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“…The materials prices and availability are obtained by the same procedure as with the stator lamination. The yield strength, density, thermal conductivity, and resistivity of the sleeve materials are found in [36][37][38].…”

Section: Assessment Of the Rotor Sleeve Materialsmentioning

confidence: 99%

Assessment of Materials for High-Speed PMSMS Having a Tooth-Coil Topology

Uzhegov¹,

Efimov-Soini²,

Pyrhönen³

2016

PIER M

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In this paper, materials frequently used in high-speed (HS) electrical machines are assessed. High-speed permanent magnet synchronous machines with a special tooth-coil topology serve as an example for the assessment. The lamination and rotor sleeve materials are compared taking into account their price, per unit losses, resistivity, and other factors. The resulting tables provide the electrical machine designer with a means to enhance the HS machine performance at low costs.

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Section: Assessment Of the Rotor Sleeve Materialsmentioning

confidence: 99%

Assessment of Materials for High-Speed PMSMS Having a Tooth-Coil Topology

Uzhegov¹,

Efimov-Soini²,

Pyrhönen³

2016

PIER M

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“…This high magnetic loading is required to maXImIZe the electrical machine specific torque density. The ideal containment sleeve would, therefore, have a degree of permeability to maXImIze magnetic loading, high mechanical strength and high resistivity to minimize eddy current losses [27]. In this paper the carbon composite length is not too large and can be easily applied with precompression in combination with a standard manufactured magnet arrangement, as shown in Fig.…”

Section: Rotor Constructionmentioning

confidence: 99%

Ultra-light-weight high torque density brushless PM machine design: Considering driving-cycle of a four-wheel drive race car

Paulides¹,

Encica²,

Beernaert

et al. 2015

2015 Tenth International Conference on Ecological Vehicles and Renewable Energies (EVER)

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This paper explores the design of an ultra light-weight power and torque dense motor to enhance the performance of a light-weight electric racing vehicle. Such a racing vehicle is to compete in formula student racing events. The state-of-the-art powertrain in these vehicles are axial-field machines or medium speed radial-field machines with a gear. This paper concerns a high speed traction machine radial-field design that closely considers the endurance duty-cycle and/or driving cycle of a race car and provides fast acceleration. The proposed electrical machine is designed to be ultra-light-weight. Therefore, an 18,000 rpm (single gear), 24 slot, 4 pole and 33 Nm brushless highly saturated permanent magnet machine is designed, with an active mass of around 3.0 kg (-10kWlkg and 10 Nmlkg). To account for the various race events, the velocity of the racing tracks is to be closely matched with the machine output characteristics. Within this paper, the design and no-load results will be presented. In the near future (Q2 of 2015), following extended tests, this machine (integrated with a specifically designed single-stage gear) will be used to drive the vehicle using torque vectoring on all four-wheels. We expect that this will result in a significant performance gain in acceleration, endurance and handling characteristics of the 2015 University Racing Eindhoven race vehicle.

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“…Also, there are works evaluating the advantages of using permeable RS, which includes reduced PM usage and increased inductance [45,48,49]. These permeable RSs present nonlinear B(H) characteristics and affects the machine performance [50,51].…”

Section: Introductionmentioning

confidence: 99%

Improved Semi-Analytical Magnetic Field Solution for High-Speed Permanent-Magnet Machines With Permeable Retaining Sleeve Including Diffusion Effect

Mendonça¹,

Maia²,

Filho³

2020

PIER B

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This work presents a novel semi-analytical model for magnetic field calculation in a highspeed surface-mounted permanent-magnet machine with conducting and permeable retaining sleeve. The retaining sleeve with conducting material and non-homogeneous permeability affects the machine electromagnetic performance by altering main flux inductance and developed torque profile. This performance deviation can be attributed to eddy-current reaction field and saturation, the latter occurring due to pole-to-pole leakage flux. Saturation is modeled with a space-varying relative permeability, expressed as a Fourier series. Eddy-currents are evaluated with an auxiliary winding, defined as a surface current density in the conducting region. The proposed method is based on well-established Maxwell-Fourier method. This permits other analysis, such as slotting effect through subdomain technique. The assumptions considered for the developed semi-analytical solution in two-dimensional problem are presented in depth and confronted with finite-element method results, confirming validity of proposed methodology.

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Analysis of Semipermeable Containment Sleeve Technology for High-Speed Permanent Magnet Machines

Cited by 40 publications

References 15 publications

Assessment of Materials for High-Speed PMSMS Having a Tooth-Coil Topology

Assessment of Materials for High-Speed PMSMS Having a Tooth-Coil Topology

Ultra-light-weight high torque density brushless PM machine design: Considering driving-cycle of a four-wheel drive race car

Improved Semi-Analytical Magnetic Field Solution for High-Speed Permanent-Magnet Machines With Permeable Retaining Sleeve Including Diffusion Effect

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