Simplified Analytical Circuital Model of Damper Windings Exploiting Symmetries

S. Nuzzo, P. Bolognesi, M. Galea

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

Abstract

The damper windings of salient-pole, wound-field synchronous generators are currently attracting a renewed interest due to their impact on the machine efficiency and power quality, which was somewhat overlooked in the past. This paper focuses on the equivalent circuital modeling of damper windings. After recalling its main physical features, the general approach is first presented, permitting to define an equivalent circuit and to derive the related resistance and inductance matrixes whatever is the pattern of the cage bars. Further assumptions deriving from common or advanced features of damper windings are then analyzed, such as symmetrical, antisymmetrical, shifted and modulated position patterns. It is then shown how such assumptions can be exploited to simplify and shrink the equivalent circuital model of damper windings when analyzing realistic operating conditions.

Original languageEnglish
Title of host publicationProceedings - 2018 23rd International Conference on Electrical Machines, ICEM 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages400-406
Number of pages7
ISBN (Electronic)9781538624777
DOIs
Publication statusPublished - 24 Oct 2018
Externally publishedYes
Event23rd International Conference on Electrical Machines, ICEM 2018 - Alexandroupoli, Greece
Duration: 3 Sep 20186 Sep 2018

Publication series

NameProceedings - 2018 23rd International Conference on Electrical Machines, ICEM 2018

Conference

Conference23rd International Conference on Electrical Machines, ICEM 2018
Country/TerritoryGreece
CityAlexandroupoli
Period3/09/186/09/18

Keywords

  • Asymmetric Windings
  • Circuital Modelling
  • Damper Windings
  • Inductance Matrix
  • Permeability
  • Synchronous Generators
  • Winding Functions

ASJC Scopus subject areas

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

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