Design and Modeling of Hysteresis Motor with High Temperature Superconducting Material in the Rotor using Finite Element Method

Abstract

In this paper, a 2-pole, 50 Hz high temperature superconducting hysteresis motor with simplest construction has been numerically simulated using finite element method for its performance calculation. In this high temperature superconducting hysteresis motor, conventional stator is used and the rotor is made up of high temperature superconducting material which has the ability to trap the magnetic field as high as possible and also carries greater current densities at higher magnetic fields. Since huge investments and time are required for the practical experiments for this work, numerical simulation are preferred. The performance parameters are compared with that of the conventional hysteresis motor in which ferro-magnetic material is used as a rotor. All of these calculations are done using MATLAB based program developed in-house and PDE based module of COMSOL Multiphysics software with proper Dirichlet and Neumann boundary conditions.  The simulation result shows a good agreement with the experimental results.

Keywords: High temperature superconductor (HTS), Yttrium Barium Copper Oxide (YBCO), Finite element method (FEM), Partial differential equation (PDE), COMSOL Multiphysics.