Design Aspects of High-Speed High-Power-Density Laminated-Rotor Induction Machines

Gerada, David; Mebarki, Abdeslam; Brown, Neil L.; Bradley, K.J.; Gerada, Chris

doi:10.1109/tie.2010.2098364

Cited by 124 publications

(66 citation statements)

References 16 publications

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“…Several different types of high strength copper alloys have been utilized for high speed induction machines, such as Copper Zirconium(CuZr), Copper Beryllium(CuBe) [37] and Copper Aluminum Oxide (CuAl2O3) [23], [24], [34], [35]. Fig.…”

Section: B Copper Alloysmentioning

confidence: 99%

“…Gerada et al [34], [35] describe a design methodology which boosts the power density of laminated rotor Induction Machines by using drop-shaped bars instead of the conventionally used round rotor bars, together with tailoring the machine's electrical and magnetic loadings as well as the split ratio. Drop-shaped bars allow the current density in the rotor cage to be tailored to the desired maximum rotor temperature.…”

Section: A High Speed Induction Machinesmentioning

confidence: 99%

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High-Speed Electrical Machines: Technologies, Trends, and Developments

Gerada

Mebarki

Brown

et al. 2014

IEEE Trans. Ind. Electron.

782

256

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription.For more information, please contact eprints@nottingham.ac.ukAbstract-This paper reviews the current technologies used in high speed electrical machines, through an extensive survey of different topologies developed and built in industry as well as in academia for several applications. Developments in materials and components including electrical steels and copper alloys are discussed, and their impact on the machines' operating physical boundaries is investigated. The main application areas pulling the development of high speed machines are also reviewed in an effort to better understand the typical performance requirements.Index Terms-high speed electrical machines, high frequency electrical machines, high strength electrical steels, high frequency electrical steels, copper alloys, thermal modeling, mechanical modeling.

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Section: B Copper Alloysmentioning

confidence: 99%

Section: A High Speed Induction Machinesmentioning

confidence: 99%

High-Speed Electrical Machines: Technologies, Trends, and Developments

Gerada

Mebarki

Brown

et al. 2014

IEEE Trans. Ind. Electron.

782

256

View full text Add to dashboard Cite

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“…One of the most widely employed indirect methods is jacket cooling [7][8][9] . This generally consists of grooves, which may be axial or spiral, created in the machine housing, where a coolant can flow; this provides a compact solution as it does not require any external fin or fans.…”

Section: Electrical Machine Designmentioning

confidence: 99%

Thermal management of a high speed permanent magnet machine for an aeroengine

Rocca

Arumugam

et al. 2016

2016 XXII International Conference on Electrical Machines (ICEM)

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--The paper describes the mechanical and thermal design of a high speed, high power density synchronous permanent magnet machine for an aero engine starter generator system with a power rating of 150 kW and maximum speed of 32,000 rpm. As both mechanical and thermal aspects have a direct impact on machine overall performance and weight reduction, a critical design optimisation was carried out. Intensive cooling is guaranteed by direct liquid oil-cooling of stationary components; a stator sleeve is also introduced into the airgap to prevent excessive windage. Thermal investigations were carried out by the means of Computational Fluid Dynamics (CFD) and Lumped Parameter Thermal Network (LPTN) analyses. Experimental validation also allowed the identification of most critical machine temperatures and the validation of the models developed. Finite Element Analysis (FEA) is used for the static structural analyses of the stator sleeve.

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“…The design of high speed machines is known to be very challenging because materials are operated closer to their mechanical limits [2], [3]. Furthermore, placing an electrical machine in a thermally aggressive environment, in-between the turbine and compressor wheel poses thermal challenges which become a critical aspect in machine type selection and design.…”

Section: Fig 1 Electrically Assisted Turbocharger System Schematicmentioning

confidence: 99%

“…Pure copper cannot be used because it softens rapidly above 200ºC, as shown in Fig.6, which compares the ultimate tensile strength as a function of temperature for copper and some of its alloys. Several different types of high strength copper alloys have been utilized for high speed Induction Machines such as Copper Zirconium, Copper Beryllium and Copper Aluminum Oxide (Glidcop) [2], [12] which retains high mechanical strength at very high temperatures. …”

Section: Materials For High Speed Induction Machinesmentioning

confidence: 99%

Electrical Machines for High Speed Applications with a Wide Constant-Power Region Requirement

Gerada¹,

Borg-Bartolo²,

Mebarki³

et al. 2012

Journal of international Conference on Electrical Machines and

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-This paper discusses the issues associated with the design of high speed machines for applications with a wide constant-power region requirement. Using described multidomain design environments which put equal weight on the electromagnetic, thermal and mechanical considerations, the suitability and power density achievable using Induction Machines (IM) and Permanent Magnet Synchronous Machines (PMSM) are compared.

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Design Aspects of High-Speed High-Power-Density Laminated-Rotor Induction Machines

Cited by 124 publications

References 16 publications

High-Speed Electrical Machines: Technologies, Trends, and Developments

High-Speed Electrical Machines: Technologies, Trends, and Developments

Thermal management of a high speed permanent magnet machine for an aeroengine

Electrical Machines for High Speed Applications with a Wide Constant-Power Region Requirement

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