Design route towards a PM machine for rotorcraft environments

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Abstract

This paper discusses the design route followed in the development of a Permanent Magnet (PM) machine for electrical power generation on board a rotorcraft (helicopter). The focus of the machine design is to optimise system power density, efficiency and robustness – all of which are crucial considerations in aerospace applications. A matrix of designs was created consisting of two stators with different winding conductors – copper and aluminium – and three rotors, each using different containment sleeve materials. These include two semi-permeable metallic sleeves, which act to decrease the effective airgap. Combinations of the different materials will yield different system-level power densities and efficiencies. Here, all the designs are presented along with the initial test results for the baseline machine combination validating the design predictions.
Original languageEnglish
Pages (from-to)3720-3724
Number of pages5
JournalJournal of Engineering
Volume2019
Issue number17
Early online date4 Apr 2019
DOIs
Publication statusPublished - Jun 2019

Keywords

  • Permanent Magnet Generators
  • More Electric Aircraft
  • PM Rotor Containment
  • Aluminium Windings

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