Investigation of Magnetic Interference between Rotors in Motor with Two Controllable Rotors

Abstract

　A number of automobiles have been fitted with electric motors and their inverters. In order to reduce the space of motors, we have proposed a motor with two controllable rotors, which consist of 2 rotors and 1 stator. However, the previous motor was difficult to be practically used due to its complicated structure. Therefore, we proposed a novel motor with 2 controllable rotors. In this paper, in order to investigate a magnetic interference between 2 rotors, the cogging torque and N-T curve of the 2 rotors are computed using 3-D finite element analysis.