Design of HTS Axial Flux Motor for Aircraft Propulsion

Masson, Philippe; Breschi, Marco; Tixador, Pascal; Luongo, C.A.

doi:10.1109/tasc.2007.898120

Cited by 84 publications

(41 citation statements)

References 2 publications

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“…HTS materials have to be cryocooled under a critical temperature of 27-77 K to enable superconducting [32]. Reports from NASA [33], the BHL [34] and Masson et al [35] predict gravimetric power densities between 7-25 kW/kg for HTS motors including cryogenic cooling with efficiencies from 95-99.5%. The efficiency of electric motors is not highly dependent on the rated power output in comparison to gas turbines [14].…”

Section: Electric Propulsion Componentsmentioning

confidence: 99%

Conceptual Design of Operation Strategies for Hybrid Electric Aircraft

et al. 2018

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Ambitious targets to reduce emissions caused by aviation in the light of an expected ongoing rise of the air transport demand in the future drive the research of propulsion systems with lower CO 2 emissions. Regional hybrid electric aircraft (HEA) powered by conventional gas turbines and battery powered electric motors are investigated to test hybrid propulsion operation strategies. Especially the role of the battery within environmentally friendly concepts with significantly reduced carbon footprint is analyzed. Thus, a new simulation approach for HEA is introduced. The main findings underline the importance of choosing the right power-to-energy-ratio of a battery according to the flight mission. The gravimetric energy and power density of the electric storages determine the technologically feasibility of hybrid concepts. Cost competitive HEA configurations are found, but do not promise the targeted CO 2 emission savings, when the well-to-wheel system is regarded with its actual costs. Sensitivity studies are used to determine external levers that favor the profitability of HEA.

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Section: Electric Propulsion Componentsmentioning

confidence: 99%

Conceptual Design of Operation Strategies for Hybrid Electric Aircraft

et al. 2018

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“…Several authors [12]- [23] showed that for a given number of phases, various feasible pole and slot number combinations exist. If S s is the number of slots in the stator and S r is the number of slots in the rotor, or in the present case, the number of radial tapes, the selection should consider the following requirements: 1) To avoid noise and vibrations, the relation between S s and S r must be such that S s −S r = {±1, ±2, ±(p±1), ±(p±2)}.…”

Section: B Rules Applied To Design the Rotor Cagementioning

confidence: 99%

Torque Ripple Reduction in an Axial Flux High Temperature Superconducting Motor

González-Parada

Trillaud

Guzmán-Cabrera

et al. 2015

IEEE Trans. Appl. Supercond.

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The design, construction, and operation of superconducting rotatory machines in an axial flux configuration are strongly dependent on the ability to reduce torque ripple. A new concept is presented in order to maximize the output power optimizing the magnetic flux density within the air gap of a threephase fully superconducting induction motor. The machine is designed on a basis of bilateral stators distributed around a central rotor. The optimal distribution of magnetic flux and the minimization of torque ripple are resulting from an adequate distribution of motor phases, number of rotor bars, and choice of air-gap thickness. The magnitude of magnetic flux in the air gap is obtained by means of finite-element analysis, and some derived parameters are compared to experimental results. Then, the impact of the design on torque magnitude and torque ripple is discussed.Index Terms-Air gap magnetic flux density, axial flux machine, HTS motors, torque ripple.

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“…The high-power density and efficiency make superconducting motors candidates to replace existing technology for ship and aircraft propulsion [41], [42]. Even with the required cryogenic system, an equivalent superconducting motor takes less space and is significantly lighter.…”

Section: A Transportationmentioning

confidence: 99%

Challenges and Prospects for the Large-Scale Application of Superconductivity

Gourlay

2008

IEEE Trans. Appl. Supercond.

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The large-scale use of superconductivity continues to be dominated by applications for which there is generally no conventional option. In these cases, superconductivity has enabled new science and technology that could not exist without it. The fields of fusion energy and high-energy physics (HEP) have particularly benefited from the application of superconductivity. High magnetic fields are absolutely necessary to achieve the required performance parameters. Even though superconductivity is an enabling technology for these fields, it comes with a number of challenges and market incursion has been very slow. However, thanks to persistent ongoing research, improvements in ancillary technology, and the development of new materials, the field is far from exhausted. On the contrary, many new applications in addition to high field magnets for scientific research and medical applications are on the horizon. Several applications are on the verge of accomplishing the much more difficult task of replacing existing conventional technology. This paper summarizes the current status of large-scale applications of superconductivity, using as an example magnet technology for fusion and HEP, and examines the prospects and challenges for new large-scale applications in the future.

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Design of HTS Axial Flux Motor for Aircraft Propulsion

Cited by 84 publications

References 2 publications

Conceptual Design of Operation Strategies for Hybrid Electric Aircraft

Conceptual Design of Operation Strategies for Hybrid Electric Aircraft

Torque Ripple Reduction in an Axial Flux High Temperature Superconducting Motor

Challenges and Prospects for the Large-Scale Application of Superconductivity

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