Examination of Temperature Characteristics of Magnetic Properties Using a Single Sheet Tester

• Nakaoka Masayoshi

  Dept. of Electrical and Electronic Eng., Okayama University

• Fukuma Atsushi

  Dept. of Electrical and Electronic Eng., Okayama University

• Nakaya Hiroyuki

  Dept. of Electrical and Electronic Eng., Okayama University

• Miyagi Daisuke

  Dept. of Electrical and Electronic Eng., Okayama University

• Nakano Masanori

  Dept. of Electrical and Electronic Eng., Okayama University

• Takahashi Norio

  Dept. of Electrical and Electronic Eng., Okayama University

Abstract

If the magnetic field in a magnetic device which is operated at high temperature, for example 100 °C, is analyzed using magnetic characteristics at a room temperature ( RT ), there occur some errors. Although the measurement method using a single sheet tester ( SST ) has advantages that the material characteristics can be measured precisely, the research about the correlation between the temperature and the magnetic characteristics using SST is few. In this paper, firstly, the temperature characteristics of magnetic properties of silicon steel sheet were measured using SST, then, the temperature characteristics of the iron loss of the permanent magnet motor were estimated by using the finite element method ( FEM ). It is shown that the permeability is increased at low flux density, and decreased at high flux density when the temperature is increased. The iron loss is decreased similarly in almost all range of B_m. The change of iron loss is remarkable in the low grade steel ( 50A1300 ). The iron loss of SPM motor at 100 °C is decreased by about 10-20 % compared with that at RT.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 125 (1), 63-68, 2005

  The Institute of Electrical Engineers of Japan

Keywords

• electrical steel sheet
• iron loss
• single sheet tester
• temperature characteristic

Details

• CRID: 1390001204592891648
• NII Article ID: 10014152867
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms.125.63
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 7205472
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I7205472
• Web Site: http://www.jstage.jst.go.jp/article/ieejfms/125/1/125_1_63/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed