Optimal design of a fully superconducting machine for 10- mw offshore wind turbines

Thanatheepan Balachandran, Dongsu Lee, Kiruba S. Haran

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fully superconducting (SC)machines hold immense promise for high-power-density and higher efficiency machine solutions for offshore wind turbine applications. In this paper, a 10MW air-core fully SC machine is designed for offshore wind turbine applications. This machine design is considered with inside armature coils and outside rotating field coils. In this topology, shield iron can be eliminated or reduced by replacing it with shield coils which contain the magnetic flux inside the machine. This machine is attractive for off-shore wind turbine application due to its high-power density and high efficiency compared to a conventional shield iron design. However, due to the introduction of additional shield coils, this topology uses relatively more amount of SC material than a conventional shield iron design. Therefore, a tradeoff between the shield coils and the shield iron is explored in this paper. In addition, machine designs with different pole-counts are investigated to identify the optimal pole-count design for a low-speed application. A detailed ac loss calculation is evaluated for the machine and required cryocooler power is evaluated to obtain the machine efficiency.

Original languageEnglish (US)
Title of host publication2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1903-1909
Number of pages7
ISBN (Electronic)9781538693490
DOIs
StatePublished - May 2019
Event11th IEEE International Electric Machines and Drives Conference, IEMDC 2019 - San Diego, United States
Duration: May 12 2019May 15 2019

Publication series

Name2019 IEEE International Electric Machines and Drives Conference, IEMDC 2019

Conference

Conference11th IEEE International Electric Machines and Drives Conference, IEMDC 2019
Country/TerritoryUnited States
CitySan Diego
Period5/12/195/15/19

Keywords

  • Air-core machines
  • Fully superconducting machines
  • High-power density
  • Offshore wind turbine
  • Optimal machine design

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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