Radial flux and axial flux PM machines analysis for More Electric Engine aircraft applications

Bojoi, Radu; Cavagnino, Andrea; Miotto, A.; Tenconi, Alberto; Vaschetto, Silvio

doi:10.1109/ecce.2010.5618110

Cited by 26 publications

(11 citation statements)

References 17 publications

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“…Fractional-Slot Concentrated-Winding (FSCW) machines have been used in a wide range of applications, Electric and hybrid vehicles [10], home appliances [11], refrigeration compressors [12] and aircraft more electric engine (MEE) starter/generator [13], [14] are some examples. This popularity is due to the advantages that FSCW machines exhibit in comparison to Distributed Winding (DW) machines.…”

Section: A Fractional-slot Windingmentioning

confidence: 99%

Internal design of permanent-magnet in-wheel motors for battery-powered traction applications

Spivey

Hamdi

2018

2018 25th International Workshop on Electric Drives: Optimization in Control of Electric Drives (IWED)

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This paper discusses design aspects of low-speed, permanent-magnet in-wheel motors suitable for low-power traction applications; such as fork-lift trucks and wheelchairs. It also investigates the force density dependence on current density and slot depth, with the aid of finite element (FE) modelling. Results are presented for practical slot dimensions and their application to specific designs is discussed.

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Section: A Fractional-slot Windingmentioning

confidence: 99%

Internal design of permanent-magnet in-wheel motors for battery-powered traction applications

Spivey

Hamdi

2018

2018 25th International Workshop on Electric Drives: Optimization in Control of Electric Drives (IWED)

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“…The selected outer rotor structure allows the direct connection between the aeroengine rotating parts and the rotor of the electrical machine [3]. In order to fulfill the available volumes imposed by the considered MEE application, the electrical machine is characterized by annulus shape, as shown in Fig.1.…”

Section: Machine Prototype Descriptionmentioning

confidence: 99%

“…The plasto-magnets technology cannot be used in MEE applications due to the high temperature inside the aeroengine [3]. If the above mentioned solutions do not reduce significantly the rotor eddy-current losses, modifications of some motor dimensions should be necessary at the design stage, but their effect has to be carefully evaluated.…”

Section: A Mmf Airgap Harmonic Contentsmentioning

confidence: 99%

“…These kind of machines are likely to be a key technology for in-wheel motors for electric vehicles [1], flywheel energy storage systems [2], aircraft More Electric Engine (MEE) starter/generator [3], etc. For these applications an annulus machine shape is typically imposed by the available volume, favoring the FSCW solution for its shorter endwinding connections.…”

Section: Introductionmentioning

confidence: 99%

“…The overall influence of the MMF harmonic components on the asynchronous machine torque for different rotor iron resistivity is qualitatively investigated too. The presented analyses are conducted referring to a scaled prototype of a PM synchronous machine representative of a starter/generator application embedded in aircraft engines recently proposed for More Electric Engine (MEE) applications [3].…”

Section: Introductionmentioning

confidence: 99%

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Impact of the rotor back-iron resistivity on the rotor eddy-current losses in fractional-slot concentrated windings PM machines

Cavagnino

Lazzari

Miotto

et al. 2011

2011 IEEE Energy Conversion Congress and Exposition

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It is well known that in fractional-slot concentrated windings the eddy-current losses in the permanent magnets can be relevant and, for this reason, they must be evaluated in the machine design procedure. The paper investigates the influence of the rotor back-iron resistivity on the rotor eddy-current losses in this machine typology. In particular, a external rotor annulus shape PM machine with fractional-slot non-overlapping concentrated windings is considered. The machine is a scaled representative prototype of starters/generators embedded in aircraft engines. Both the rotor back-iron and permanent magnet eddy-currents are simultaneously considered by means of bidimensional transient FEM simulations, including effects of stator slotting, rotor motion and material saturation. The analysis is conducted increasing the rotor back-iron resistivity from an ideal situation of a high-conducting material up to the opposite ideal condition of a non-conducting material. Adjusting the rotor backiron resistivity, the space MMF harmonic components influence on the machine torque is qualitatively investigated and discussed too.

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The Two-Step Approach to the Selection of a Traction Motor for Electric Vehicles

Bolvashenkov

Herzog

Frenkel

et al. 2018

Safety-Critical Electrical Drives

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Radial flux and axial flux PM machines analysis for More Electric Engine aircraft applications

Cited by 26 publications

References 17 publications

Internal design of permanent-magnet in-wheel motors for battery-powered traction applications

Internal design of permanent-magnet in-wheel motors for battery-powered traction applications

Impact of the rotor back-iron resistivity on the rotor eddy-current losses in fractional-slot concentrated windings PM machines

The Two-Step Approach to the Selection of a Traction Motor for Electric Vehicles

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