The design and implementation of power conversion unit for electric vehicle

In this paper, an electric vehicle driving inverter is designed and manufactured, and the performance of the inverter is verified through tests. The inverter is composed of a control part which has the function to control the entire invert system by receiving various sensor inputs and torque commands and generate PWM, a power conversion part and a cooling part. The power conversion part is composed of a power semiconductor module, a dc capacitor, an electric current sensor, and a heat dissipation system. In this paper, an inverter to which an IGBT module of fin-pin type which is available of direct cooling is applied was designed and manufactured, and the performance was verified through tests with external load.