Design Procedure of a 10kV/630kW Three-Phase CHB-SRC based Rectifier for High-Power DC Charging Stations

The rectifier is an important part of power-distributed network technologies, which acts as a link between power-distributed networks and high-power DC charging stations to realize large-scale adoption of electric vehicles. This paper describes the engineering design procedure of a 10kV/630kW three-phase CHB-SRC based rectifier in detail, which consists of the CHB-SRC power module design, IGBT power devices, capacitor, and inductor design. The 10kV/630kW three-phase CHB-SRC based rectifier prototype is built and tested, the results indicate that the prototype based on the proposed design procedure can achieve 96.678% efficiencies.