The electromagnetic design of a high speed, 45kW, switched reluctance machine having a novel rotor geometry for aerospace application

J. Borg Bartolo, C. Gerada

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

14 Citations (Scopus)

Abstract

The work done in designing a high speed starter-generator for an aircraft engine will be presented in this paper. The electrical machine is of the variable reluctance type, which was chosen due to its inherent robustness, ease of manufacture and reliability. The Starter-Generator function requires the machine to initially act as a motor, spinning the aero-engine through the starting sequence, till light-off speed, (maximum torque condition). It then continues to assist the engine till idle speed is reached, following which the machine acts as a generator. The machine described was designed to deliver its maximum torque of 54Nm at 8000rpm, and will be required to supply a 45kW load at shaft speeds up to 32000rpm. The design envelope is the same as that used in sizing starter-generators for use in the latest models of regional jets. This paper details the challenges in designing such a machine to meet the wide constant power speed range required, and proposes a novel rotor structure as a possible solution.

Original languageEnglish
Title of host publicationProceedings - 2014 International Conference on Electrical Machines, ICEM 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2513-2519
Number of pages7
ISBN (Electronic)9781479943890
DOIs
Publication statusPublished - 17 Nov 2014
Externally publishedYes
Event21st International Conference on Electrical Machines, ICEM 2014 - Berlin, Germany
Duration: 2 Sep 20145 Sep 2014

Publication series

NameProceedings - 2014 International Conference on Electrical Machines, ICEM 2014

Conference

Conference21st International Conference on Electrical Machines, ICEM 2014
Country/TerritoryGermany
CityBerlin
Period2/09/145/09/14

Keywords

  • Electric Machines
  • High Speed generators
  • Reluctance Generators

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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