Electro-Mechanical Challenges in the Design of a High-Speed-High-Power-PMSM Rotor for an Aerospace Application

Chiodetto, Nicola; Mecrow, B.C.; Wróbel, Rafał; Lisle, Timothy

doi:10.1109/ecce.2019.8912521

Cited by 6 publications

(1 citation statement)

References 13 publications

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“…In that context, the rotor tip speed is used as an indication of the mechanical design limits, e.g. high-specific-output electrical machines with a rotor tip speed of up to 200 m/s have been reported in the literature [18][19][20].…”

Section: Thermal Management -Challengesmentioning

confidence: 99%

Archives of Electrical Engineering

Wrobel

2022

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The continuous drive towards electrified propulsion systems has been imposing ever more demanding performance and cost targets for the future power electronics, machines and drives (PEMDs). This is particularly evident when exploring various technology road mapping documents both for automotive and aerospace industries, e.g. Advanced Propulsion Centre (APC) UK, Aerospace Technology Institute (ATI) UK, National Aeronautics and Space Administration (NASA) USA and others. In that context, a significant improvement of the specific performance and cost measures, e.g. power density increase by a factor of 10 or more and/or cost per power unit reduction by 50% or better, is forecasted for the next 5 to 15 years. However, the existing PEMD solutions are already at their technological limits to some degree. Consequently, meeting the performance and cost step change would require a considerable development effort. This paper is focused on electrical machines and their thermal management, which has been recognised as one of key enabling factors for delivering high specific output solutions. The challenges associated with heat removal in electrical machines are discussed in detail, alongside with new concepts of thermal management systems. Several examples from the available literature are presented. These include manufacturing techniques, new materials and novel integrated designs in application to electrical machines.

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Section: Thermal Management -Challengesmentioning

confidence: 99%

Archives of Electrical Engineering

Wrobel

2022

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Control Strategies of Motor for Shaftless Rim-Driven Aviation Electric Propulsion System

Huang

Yang

Bai

et al. 2023

Lecture Notes in Electrical Engineering

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Impact of residual stress evoked by pyramidal embossing on the magnetic material properties of non-oriented electrical steel

Gilch¹,

Neuwirth

Schauerte³

et al. 2021

Arch Appl Mech

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Targeted magnetic flux guidance in the rotor cross section of rotational electrical machines is crucial for the machine’s efficiency. Cutouts in the electrical steel sheets are integrated in the rotor sheets for magnetic flux guidance. These cutouts create thin structures in the rotor sheets which limit the maximum achievable rotational speed under centrifugal forces and the maximum energy density of the rotating electrical machine. In this paper, embossing-induced residual stress, employing the magneto-mechanical Villari effect, is studied as an innovative and alternative flux barrier design with negligible mechanical material deterioration. The overall objective is to replace cutouts by embossings, increasing the mechanical strength of the rotor. The identification of suitable embossing geometries, distributions and methodologies for the local introduction of residual stress is a major challenge. This paper examines finely distributed pyramidal embossings and their effect on the magnetic material behavior. The study is based on simulation and measurements of specimen with a single line of twenty embossing points performed with different punch forces. The magnetic material behavior is analyzed using neutron grating interferometry and a single sheet tester. Numerical examinations using finite element analysis and microhardness measurements provide a more detailed understanding of the interaction of residual stress distribution and magnetic material properties. The results reveal that residual stress induced by embossing affects magnetic material properties. Process parameters can be applied to adjust the magnetic material deterioration and the effect of magnetic flux guidance.

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Electro-Mechanical Challenges in the Design of a High-Speed-High-Power-PMSM Rotor for an Aerospace Application

Cited by 6 publications

References 13 publications

Archives of Electrical Engineering

Archives of Electrical Engineering

Control Strategies of Motor for Shaftless Rim-Driven Aviation Electric Propulsion System

Impact of residual stress evoked by pyramidal embossing on the magnetic material properties of non-oriented electrical steel

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