Conceptual Design and Material Analysis of BLDC Motor Using FEA Tools for Electric Vehicle Applications

Abstract

A detailed study was carried out on Permanent Magnet Brushless DC (PMBLDC) motor using Finite Element Method (FEM). The conceptual design of PMBLDC motor is analyzed by selecting various winding and magnetic materials, change in number of turns and altering the chemical compositions of stator material. An analytical approach has been proposed for the research carried out, especially for electrical vehicle applications. The problem and material definitions is given to the electromagnetic field simulation software named Infolytica ©/MagNet 7.1. In field solution, FEM is defined in two dimensional view. The geometrical 2D model, losses and cognitive torque is calculated for 4 pole, 350 W rated power at 1500 rpm speed motor. The analytical results with comparison for existing and proposed system are also presented clearly. The efficiency extracted from the proposed system is 96.4%.