Integrated Power Converter for Switched Reluctance Motor Drive with Electric Vehicle Charging System
摘要
The switched reluctance motor (SRM) utilizes an electric powertrain for four-quadrant motor operations, DC fast charging, and AC charging capabilities in electric vehicle (EV) applications. However, the conventional converter operates only for motor drive operation. The integrated power converter (IPC) proposed in this study can independently operate under driving mode conditions through battery supplies. Additionally, it facilitates vehicle-to-grid supply and grid-to-vehicle supply under necessary EV drive conditions. This paper proposes an integrated power converter capable of handling both DC fast charging and AC charging for the SRM drive. A single control unit is designed to manage the SRM drive, facilitate bidirectional charging between the vehicle and the grid, and accommodate both DC fast charging and AC charging systems. The proposed 8/6 SRM converter employs 12 switches with various operational modes, considering that the converter and control electronics are integrated into a single unit. This model is developed and validated through MATLAB/Simulink. Furthermore, the motor drive operation is analyzed, considering steady-state speed and acceleration responses.