Proceedings Article10.1109/ecce50734.2022.9947594
Design and Comparison of Direct-Drive and Geared High Specific Power Permanent Magnet Motors for Aerospace Applications
09 Oct 2022
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TL;DR: In this paper , potential designs for direct-drive as well as geared topologies enabled by additively manufactured coils Fractional Slots Concentrated Windings (FSCWs) with integrated heat pipes are discussed and compared.
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Abstract: Electrical machines are key enablers of hybrid/electric propulsion in aerospace applications. This is attributed to the following advantages: (i) full or partial elimination of fossil fuel which is reflected on emissions and less reliance on fossil fuel resources, and (ii) noiseless system. On the other hand, current electric motors are not competitive in terms of the machine Specific Power (SP) as well as efficiency. The targets for SP are double or triple the state-of-the art. In this paper, potential designs for direct-drive as well as geared topologies enabled by Additively Manufactured (AM) coils Fractional Slots Concentrated Windings (FSCWs) with integrated heat pipes will be discussed and compared. On the rotor side, the considered designs are configured with Halbach array Permanent Magnet (PM) rotor. As a result, it will be shown that these designs provide significant encouraging results towards the global trend of magnifying electric motors SP.
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Citations
Fault Tolerant Electric Machine Concept for Aircraft Propulsion with PM Rotor and DC Current Stator Dual-Stage Excitation
Donovin Lewis,Oluwaseun A. Badewa,Ali Mohammadi,Matin Vatani,Dan M. Ionel +4 more
- 29 Aug 2023
TL;DR: This paper proposes a novel dual-stage electric machine topology for aircraft propulsion, combining a coreless Halbach PM array axial flux unit with a PM-less synchronous hybrid excited radial flux unit for fault-tolerance, compactness, and efficiency at multiple operating points.
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Comparative Analysis Between Various High Specific Power Permanent Magnet Motor Topologies for Aerospace Applications
09 Oct 2022
TL;DR: In this paper , three different machine topologies enabled by aluminum additively-manufactured coils with integrated heat pipes were discussed and compared for direct-drive as well as geared solutions, and the analysis and optimization results showed significantly improved specific power compared to the state-of-the-art electric motors.
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Study of the Current Ripple Effect of a Modular Machine Drive on Torque Ripple and Losses foran SPM Machine with Additively Manufactured Hollow Conductor Coils
05 Sep 2022
TL;DR: In this paper , the effects of the current ripple induced by PWM switching on various parameters of a 250 kW, 5,000 rpm surface mount permanent magnet machine were investigated and an analytical method was proposed to accurately estimate the maximum current ripple for the modular motor drive used in this machine.
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Efficient Design and Material Strategies for High Power Density Axial Flux Permanent Magnet Motors
Dorsa Talebi,Sri Vignesh Sankarraman,S. Mehdi Seyedi,Sina Khalesidoost,Nazario Martı́n,Matthew C. Gardner,Hamid A. Toliyat +6 more
- 29 Oct 2023
TL;DR: High-power density axial flux permanent magnet motor design optimization explores design adjustments to enhance motor efficiency, including tooth tips, stator teeth material selection, and winding modifications.
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Scalability, Design and Optimization of High Specific Power 500 kW SPM Machine with Additively Manufactured Coils and Integrated Heat Pipes
09 Oct 2022
TL;DR: In this paper , the scalability effects on key specifications (including specific power and efficiency) of surface permanent magnet machines (SPMs) have been investigated for hybrid/electric propulsion for aerospace applications.
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