An Investigation into the Effect of Non-segmented Rotor on the Torque of an Outer Rotor Switched Reluctance Motor for In-wheel Electric Vehicle Application

High torque electric machines have found numerous applications in the industry such as electric vehicle applications. With common optimization of the structure of the electric machines, it is not possible to achieve a considerable increase in the torque-producing capability of the machine. Hence, appropriate solutions for increasing the machine torque should be searched by proposing a different structure and focusing on the exact analysis of the machine forces. A deep knowledge on the electromechanical energy conversion process and the distribution of the force’s components will allow designing a high torque density electric machine can be developed. Accordingly, in this paper, a double-stator switched reluctance motor is analyzed, firstly. Then, based on the analysis, a high torque switched reluctance machine titled “outer rotor switched reluctance machine” for the in-wheel electric vehicle is designed. Finally, the effect of non-segmented rotor is examined. Simulation is done by finite element method (FEM) in the MAGNET software.