| Title |
Magnetizing Analysis of a Convergence Purity Magnet using Preisach model and Finite Element Method |
| Authors |
윤태호(Yoon, Tae-Ho) ; 권병일(Kwon, Byung-Il) ; 박승찬(Park, Seung-Chan) ; 우경일(Woo, Kyung-Il) |
| Keywords |
Convergence purity magnet ; Finite element ; Magnetization ; Preisach Model |
| Abstract |
This paper deals with the characteristic analysis of magnetizer for convergence purity magnet by the finite element method. The analysis utilizes combined method of the time-stepped finite element analysis and the Preisach model with hysteresis phenomena. In the finite element analysis, the non-linearity and the eddy current of the magnetizing fixure and permanent-magnet are taken account. The magnetization distribution in the permanent magnet is determined by using Preisach model which are composed of Everett function table and the first order transition curves is obtained by the Vibrating Sample Magnetometer. The calculated flux density values on the surface of the permanent magnet are led to the approximated gauss density values measured by the gauss meter. As a result, winding current, copper loss, eddy current loss of the magnetizing yoke, flux plot, surface gauss plot, temperature rise of the coil and resistor variation, vector diagram of magnetization distribution are shown. |