Manufacturing Challenges of a Modular Transverse Flux Alternator for Aerospace

Mehmet C. Kulan, Nick J. Baker and Simon Turvey
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Mehmet C. Kulan: School of Engineering, Merz Court, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
Nick J. Baker: School of Engineering, Merz Court, Newcastle University, Newcastle Upon Tyne NE1 7RU, UK
Simon Turvey: Rolls—Royce Plc, The Derwent Building, 5000 Solihull Parkway, Birmingham B37 7YP, UK

Energies, 2020, vol. 13, issue 16, 1-17

Abstract: This paper presents the manufacturing challenges of a transverse flux alternator for an aerospace application. For fault tolerance, four independent isolated phases are required to deliver a specific power at low speeds, whilst at over speed, there is a strict limit on the short circuit current. A transverse flux machine (TFM) was selected due to its high inductance combined with the modular nature of separate phases lending itself to fault tolerance. The stator consists of pressed soft magnetic composite (SMC) segments. The authors explore the electromagnetic, mechanical, and assembly design challenges of the machine. It is shown that mechanical design aspects of the segments are of equal importance to the electromagnetic design and optimization. Simple design choices have allowed the same component to be used as all the stator segments, despite the requirement of a 90° electrical phase difference between phases and a tooth offset of 180° electrical within each phase.

Keywords: aerospace; modular machine; permanent magnet alternator; segmented machine; soft magnetic composites; transverse flux machine (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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