Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study for the Formulation of the Preisach Distribution Function

프라이자흐 분포함수의 정식화에 관한 연구

  • Kim, Hong-Kyu (School of Electrical Engineering, Seoul National University) ;
  • Lee, Chang-Hwan (School of Electrical Engineering, Seoul National University) ;
  • Jung, Hyun-Kyo (School of Electrical Engineering, Seoul National University) ;
  • Hong, Sun-Ki (School of Electrical Engineering, Hoseo University)
  • 김홍규 (서울대학교 공과대학 전기공학부) ;
  • 이창환 (서울대학교 공과대학 전기공학부) ;
  • 정현교 (서울대학교 공과대학 전기공학부) ;
  • 홍선기 (호서대학교 공과대학 전기전자제어 공학부)
  • Published : 1996.07.22
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Abstract

The Preisach model needs a density function to simulate the hysteresis phenomena. To obtain this function, many experimental data obtained from the first order transition curves are required to get accurate density function. However, it is difficult to perform this procedure, especially for the hard magnetic materials. In this paper, we compare the density function obtained from the experimental data with that computed from the mathematical function like the Gaussian function, and propose a simple technique to get mathematical equation of the density function or Everett function which is obtained from the initial curve, major and minor loop.

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