The Influence of Stator Material on the Power Density and Iron Loss of a High-Performace Starter-Generator for More Electric Aircraft

Dmitry Golovanov, Zeyuan Xu, David Gerada, Michele Degano, Gaurang Vakil, Chris Gerada

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

11 Citations (Scopus)

Abstract

Maximizing the power density as well as efficiency are two of the main critical aspects for engineers who are designing electrical machines for aerospace applications. Iron losses have a significant impact on the total machine efficiency, thermal state and, eventually, on the final machine design. This impact becomes especially critical for high-frequency machines. Thereby a selection of optimal stator material which allows minimizing the total weight and iron losses is very important. This paper focuses on the comparison of cobalt-iron alloy and high-grade non-oriented silicon steel materials in terms of influence on the starter-generator iron losses and power density. Analytical and finite element models are used for calculation and optimization of the machine parameters. The optimization of starter-generator design is performed by using genetic-algorithm taking into account thermal state and the estimation of passive mass. The results of investigation allows for the selection of an optimal stator material based on the machine efficiency, power density as well as the cost considerations.

Original languageEnglish
Title of host publicationICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages169-173
Number of pages5
ISBN (Electronic)9788986510201
DOIs
Publication statusPublished - 27 Nov 2018
Externally publishedYes
Event21st International Conference on Electrical Machines and Systems, ICEMS 2018 - Jeju, Korea, Republic of
Duration: 7 Oct 201810 Oct 2018

Publication series

NameICEMS 2018 - 2018 21st International Conference on Electrical Machines and Systems

Conference

Conference21st International Conference on Electrical Machines and Systems, ICEMS 2018
Country/TerritoryKorea, Republic of
CityJeju
Period7/10/1810/10/18

Keywords

  • Iron loss
  • high-speed electrical machine
  • power density
  • soft magnetic materials

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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