A Spoke-Supported Superconducting Rotor With Rotating Cryocooler

Xiao, Jianqiao; Balachandran, Thanatheepan; Samarakoon, Anjana; Haran, Kiruba S.

doi:10.1109/tmag.2022.3150786

Cited by 7 publications

(1 citation statement)

References 11 publications

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“…To achieve the desired temperatures on our two 'warm gap' rotors, we have proposed using a dedicated cryocooler. This is an established approach [15,16] and we are evaluating two implementations that will be described in the following sections.…”

Section: Cryogenic Concepts For 100 Kw and 3 Mw Motorsmentioning

confidence: 99%

Additive manufacturing materials for structural optimisation and cooling enhancement of superconducting motors in cryo-electric aircraft

Lumsden,

Ludbrook,

Rogers Rehn

et al. 2023

Supercond. Sci. Technol.

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Superconducting electric motors offer the potential for low weight and high power in applications such as electric aircraft and high speed marine transport. Combined with renewably-sourced cryogenic fuels and advanced fuel cells they offer a path to zero-carbon mass transport. The proposed architectures of these extreme machines, operating at temperatures around 20K to 50K and employing very high alternating magnetic fields, require materials for the stator that are not electrically conducting and at the same time have good cryogenic structural performance. Additively manufactured (AM) materials can play a key role in these designs, and a collaboration between the Robinson Research Institute and AUT is studying the performance of a range of composite polymers in superconducting machine applications. There are significant challenges to be met, including understanding the effect of the build process on material properties at low temperatures, and also the effect of formulation changes on thermal properties.Additively manufactured metals can be employed in the rotor components, where the magnetic field fluctuations are very small for our synchronous designs. In this usage case, we can achieve dramatic reductions in the weight of the rotor assembly by minimising the number of joints and facilitating the design of multi-functional components in our helium cooled, vacuum cryostat architecture.Novel design solutions have been developed for several key components in our prototype machines and these are discussed, along with cryogenic testing results for selected additively manufactured polymers and composites. 

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Section: Cryogenic Concepts For 100 Kw and 3 Mw Motorsmentioning

confidence: 99%