Research on the permanent magnet using comsol multiplysics in generator

Abstract

This paper develops a model to compute the rotor permanents magnets, the structure which is usual used in the generator. To carry out such a design, the company usually employs finite element analysis software even if it is time consuming. Other designers employ FEM and BEM to evaluate the unknown air-gap permeance. We describe a approach based on the coupling of an ordinary differential equation (ODE) and arbitrary Lagrangian-Eulerian (ALE) for the performance analysis of the generator. Finite element method can be used to calculate geometry effect, the air-gap distance, to the magnetic flux density and the power flow which is analyzed.