Damper Winding Harmonics Analysis of an Electrically Excited Synchronous Machine at Power Converter Supply

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

Abstract

The main purpose of the damper winding in electrically excited synchronous machines is to protect the field winding from large induced voltages caused by unbalanced loads, mechanical oscillations, transient conditions, and harmonics caused by the air-gap field. While electrically excited synchronous machines which are fed via power converter, are not subject to unbalanced loads and mechanical oscillations, they are particularly subject to harmonics in the air-gap field caused by the power converter supply. This paper analyzes the shielding capability of the damper winding at power converter operation as well as the additional power loss. To this aim, the harmonic content of the damper winding for sinusoidal supply, 3-level power converter supply, as well as 15-level power converter supply are analyzed, both theoretically and experimentally using a custom-built electrically excited synchronous machine.

Original languageEnglish
Title of host publicationProceedings - 2020 International Conference on Electrical Machines, ICEM 2020
Pages1092-1098
Number of pages7
ISBN (Electronic)9781728199450
DOIs
Publication statusPublished - 23 Aug 2020
Event2020 International Conference on Electrical Machines: ICEM 2020 - Virtual, Gothenburg, Sweden
Duration: 23 Nov 202026 Nov 2020

Publication series

NameProceedings - 2020 International Conference on Electrical Machines, ICEM 2020

Conference

Conference2020 International Conference on Electrical Machines
CountrySweden
CityVirtual, Gothenburg
Period23/11/2026/11/20

Keywords

  • Damper winding
  • Electrically excited synchronous machine
  • Modular multilevel converter
  • Variable speed drive

ASJC Scopus subject areas

  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fields of Expertise

  • Sustainable Systems

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