Analysis of Integration Options for A Two-Stage Synchronous Generator

Liya Tom, Ramkumar Ramanathan, Gaurang Vakil, Christopher Gerada, Alastair McQueen

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

Abstract

The popularity of synchronous generators over other power generating systems has dramatically increased over the last few decades. They are particularly important for applications that provides smooth excitation control and requires minimum maintenance. Brushless synchronous machines with a separate exciter is a good candidate in such cases, however, having a separate exciter machine introduces thermal difficulties and reduces the compactness of the system. To eliminate such limitations, this paper proposes a solution with a two-stage synchronous generator, where the exciter machine is integrated to the active and passive components of a wound-field synchronous generator. The methods considered and analysed in this work include, keeping the bore diameter identical for both the exciter machine and the main synchronous generator and integrating the exciter machine to a fan with 55 mm and 65 mm length. A more compact machine design with more than 40% reduction in the axial length was achieved, in conjunction with improved thermal management and increased power density.

Original languageEnglish
Title of host publication2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728156811
DOIs
Publication statusPublished - 21 Jan 2021
Externally publishedYes
Event2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021 - Virtual, Hyderabad, India
Duration: 21 Jan 202123 Jan 2021

Publication series

Name2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021

Conference

Conference2021 International Conference on Sustainable Energy and Future Electric Transportation, SeFet 2021
Country/TerritoryIndia
CityVirtual, Hyderabad
Period21/01/2123/01/21

Keywords

  • Electrical Machine
  • Exciter machine
  • FE Analysis
  • Generator design
  • Integration
  • Motor-CAD
  • Synchronous generator
  • Wound field generator.

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment
  • Automotive Engineering
  • Electrical and Electronic Engineering
  • Transportation

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