Electromechanical Analysis of Low Voltage Faults in a Magnetically Coupled Synchronous Generator Set

O. R. Tweedy, Y. Akcay, P. Giangrande, M. Galea, S. D. Garvey

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

Abstract

This paper investigates the magneto-mechanical performance of a magnetically coupled, engine driven synchronous generator set exposed to a severe low voltage grid fault. A multi-physics model of a generator, coaxial magnetic coupling and diesel engine is subjected to a 100% voltage drop scenario and the mechanical response is analysed. The peak coupling torque is significantly lower than that of a generator set coupled with a standard rubber flexible coupling, but the time required for generator to grid resynchronisation is increased. As a result, the machine shafts are protected from severe stress transients that can lead to structural failure. An oversized coaxial magnetic coupling is also analysed to determine the relationship between peak coupling torque and fault ride through performance.

Original languageEnglish
Title of host publication2022 International Conference on Electrical Machines, ICEM 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages143-149
Number of pages7
ISBN (Electronic)9781665414326
DOIs
Publication statusPublished - 2022
Event2022 International Conference on Electrical Machines, ICEM 2022 - Valencia, Spain
Duration: 5 Sep 20228 Sep 2022

Publication series

Name2022 International Conference on Electrical Machines, ICEM 2022

Conference

Conference2022 International Conference on Electrical Machines, ICEM 2022
Country/TerritorySpain
CityValencia
Period5/09/228/09/22

Keywords

  • fault torque
  • generator set
  • low voltage ride through
  • magnetic coupling
  • multi-physics model
  • rotor slip

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Mechanical Engineering

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