Superconducting motors for aircraft propulsion: the Advanced Superconducting Motor Experimental Demonstrator project

Grilli, Francesco; Benkel, Tara; ̈anisch, Jens H; Lao, Mayraluna; Reis, T.; Berberich, Eva; ̈adter, Simon Wolfst; Schneider, Christian; Miller, Paul; Palmer, Chloe; Glowacki, B.A.; Climente-Alarcón, Vicente; Smara, Anis; Tomków, Łukasz; ̈otter, Johannes Teigelk; Stock, Alexander; ̈del, Johannes Bu; Jeunesse, Loïc; Staempflin, M.; Delautre, Guillaume; Zimmermann, Baptiste; Woude, Ruud van der; Perez, Ana; Samoilenkov, S. V.; Molodyk, Alexander; Pardo, Enric; Kapolka, Milan; Li, Shuo; Dadhich, Anang

doi:10.1088/1742-6596/1590/1/012051

Cited by 63 publications

(42 citation statements)

References 12 publications

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“…Electric aircraft has been considered as a solution to zeroemission air travel, which requires low weight, high efficiency, and high power density [3][4]. Superconducting machines, acting as a key component of the electric propulsion system, have provided a possibility for future electric aviation and aerospace industries [5]. The high field source in superconducting machines can be superconducting coils and super permanent magnets.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic properties of curved HTS trapped field stacks under high-frequency cross fields for high-speed rotating machines

Zhang

Mueller

2021

Supercond. Sci. Technol.

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Superconducting electric propulsion systems, characterized by high power densities and efficiencies, provide a possibility to zero carbon emission for future aviation. Stacks of high temperature superconductor (HTS) coated conductors (CCs) have become an alternative for high field magnets applied to superconducting machines, given their excellent field trapping ability and thermal stability. High-frequency ripple fields always exist in high-speed electric machines. Most research work regarding HTS trapped field stacks (TFSs) was focused on their magnetization methods and amplitude of trapped flux density; however, their performance in the high-frequency environment remains unclear. Despite several numerical models established for flat HTS TFSs, a comprehensive analysis of curved ones is still lacking, which possess geometrical applicability for cylindrical rotating shafts. Aimed at exploring the electromagnetic properties of curved HTS TFSs applied to high-speed rotating machines, a 3D numerical model considering both the multilayer structure and the Jc(B) dependence of HTS CCs has been built. Current and magnetic flux density distributions, as well as loss properties of a curved HTS TFS have been studied in detail, under perpendicular and cross fields with varying frequencies ranging from 50 Hz to 20 kHz. Results have shown that, the widely adopted 2D-axisymmetric models are inapplicable to study the electromagnetic distributions of TFSs because of the emergence of the electromagnetic crisscross defined in this paper. High-frequency ripple fields can drive induced current towards the periphery of the HTS TFS due to the skin effect, leading to a fast rise of AC loss and even an irreversible demagnetization of the stack. This paper has qualified and quantified the highfrequency electromagnetic hehaviours of curved HTS TFSs, providing a useful reference for their loss controlling and anti-demagnetization design in high-speed propulsion machines.

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Section: Introductionmentioning

confidence: 99%

Electromagnetic properties of curved HTS trapped field stacks under high-frequency cross fields for high-speed rotating machines

Zhang

Mueller

2021

Supercond. Sci. Technol.

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“…[25]) or as a primary fuel for propulsion purposes. Given the superior specific weights and dramatically reduced losses enabled by the HTS-specific current and flux densities in electrical machinery [122,123], target settings for an HTS turbo-electric transmission system were stipulated including a total power train efficiency of η PT,FF,HTS = 96% and a total specific power of SP PT,FF,HTS = 5 kW/kg. The high design complexity and the system behavioral patterns specially in abnormal modes of operation involved with the application of HTS technology have not been considered.…”

Section: Preliminary Assessment Of More Advanced Pfc Power Train Technologymentioning

confidence: 99%

Proof of Concept Study for Fuselage Boundary Layer Ingesting Propulsion

et al. 2021

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Key results from the EU H2020 project CENTRELINE are presented. The research activities undertaken to demonstrate the proof of concept (technology readiness level—TRL 3) for the so-called propulsive fuselage concept (PFC) for fuselage wake-filling propulsion integration are discussed. The technology application case in the wide-body market segment is motivated. The developed performance bookkeeping scheme for fuselage boundary layer ingestion (BLI) propulsion integration is reviewed. The results of the 2D aerodynamic shape optimization for the bare PFC configuration are presented. Key findings from the high-fidelity aero-numerical simulation and aerodynamic validation testing, i.e., the overall aircraft wind tunnel and the BLI fan rig test campaigns, are discussed. The design results for the architectural concept, systems integration and electric machinery pre-design for the fuselage fan turbo-electric power train are summarized. The design and performance implications on the main power plants are analyzed. Conceptual design solutions for the mechanical and aero-structural integration of the BLI propulsive device are introduced. Key heuristics deduced for PFC conceptual aircraft design are presented. Assessments of fuel burn, NOx emissions, and noise are presented for the PFC aircraft and benchmarked against advanced conventional technology for an entry-into-service in 2035. The PFC design mission fuel benefit based on 2D optimized PFC aero-shaping is 4.7%.

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“…Stability, easy fabrication procedures, and flexibility are also required. Novel and advanced approaches need to be developed to meet all these challenges for a sustainable future [103,104].…”

Section: Steady-state Physicsmentioning

confidence: 99%

High Temperature Superconductors

Ikram¹,

Raza²,

Altaf³

et al. 2021

Transition Metal Compounds - Synthesis, Properties, and Application

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One of the pioneers who introduced superconductivity of metal solids was Kamerlingh Onnes (1911). Researchers always struggled to make observations towards superconductivity at high temperatures for achieving goals of evaluating normal room temperature superconductors. The physical properties are based entirely on the behavior of conventional and metal superconductors as a result of high-temperature superconductors. Various synthetic approaches are employed to fabricate high-temperature superconductors, but solid-state thermochemical process which involves mixing, calcinating, and sintering is the easiest approach. Emerging novel high-temperature superconductors mainly engaged with technological applications such as power transmission, Bio-magnetism, and Tokamaks high magnetic field. Finally, in this chapter, we will discuss a brief outlook, future prospects, and finished with possible science fiction and some opportunities with high-temperature superconductors.

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Superconducting motors for aircraft propulsion: the Advanced Superconducting Motor Experimental Demonstrator project

Cited by 63 publications

References 12 publications

Electromagnetic properties of curved HTS trapped field stacks under high-frequency cross fields for high-speed rotating machines

Electromagnetic properties of curved HTS trapped field stacks under high-frequency cross fields for high-speed rotating machines

Proof of Concept Study for Fuselage Boundary Layer Ingesting Propulsion

High Temperature Superconductors

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