Abstract
With the advancement of electric vehicle (EV) performance, the increasing number of electrical components required to connect various power devices has led to issues such as higher part count, weight, and cost. This research introduces a novel power unit that integrates all power conversion functions within the drive motor and inverter. This unit not only combines AC regular charging and rapid DC charging functions but also enhances drive output and efficiency compared to conventional systems by changing motor winding connections. By developing such an integrated power unit, we aim to improve EV performance while reducing costs. This paper reports on the operating systems of the integrated power unit and the results of actual machine verification, demonstrating the successful integration of AC and DC charging into the motor drive system and paving the way for more compact and efficient EV designs.
