In-Wheel motor drive system using 2-phase PMSM

Abstract

In-Wheel System is a high-efficiency system to supply a new concept of platform which raises the efficiency of motor drive system and applies it to an environment-friendly automobile by installing a highly efficient electric motor directly to wheels and removing factors of power train. In addition, this system receives a lot of favorable attention especially from various fields (e.g. electric vehicle, electric scooter, electric wheel chair, golf car, mobile robot, etc.) because it is a technology which maximized the efficiency of energy. So, 2-phase PMSM instead of 3-phase PMSM is applied to the synchronous motor, an important part of the in-wheel system, in order to raise the efficiency of use of DC link voltage. This research aims to the in-wheel system with 2-phase PMSM. To achieve the purpose, it provides a system of driving gear for controlling 2-phase PMSM and verifies it from simulation and experiments.