The influence of cutting on the magnetic properties of electrical steel sheets and its modeling in electric machine design

Madeleine Bali*, Annette Muetze

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

This paper summarizes the main characteristics of and differences between the influence of mechanical and laser cutting on the magnetic properties of electrical steel sheets. Quasi-static measurements as well as measurements at higher frequencies (50 Hz, 250 Hz, 500 Hz) are reported on three different ferromagnetic materials commonly used in electric machines. Subsequently, a method to consider the effect of cutting in the modeling process is reviewed. This method is based on measurement data obtained by the standardized, wide-spread and fast-to-perform Epstein frame method, eliminates the need of knowing the exact deterioration depth and is applicable to different cutting techniques.

Original languageEnglish
Pages (from-to)185-190
Number of pages6
Journale&i - Elektrotechnik und Informationstechnik
Volume134
Issue number2
DOIs
Publication statusPublished - 1 Apr 2017

Keywords

  • degradation
  • electrical sheet
  • ferromagnetic material
  • hysteresis
  • laser
  • mechanical cutting
  • permeameter

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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