Charging stations for electric vehicles require electrical isolation between the charging ports. Therefore, this paper proposes a multi-port DC/DC converter structure that combines three conventional dual-active bridge converters (DABCs) where the primary side switching stages are integrated into a single four-leg inverter, and three individually isolated output ports (4L3) are provided. This quad-active bridge converter (QABC) structure ...

An accurate and fast transient calorimetric ferrite core-loss measurement method is proposed in this paper. In contrast to electrical measurements, the accuracy of the calorimetric approach is independent of the magnetic excitation and operating frequency. However, an accurate value of the thermal capacitance of the Core Under Test (CUT) is required, which can be achieved, e.g., by measuring the specific heat capacity of the measured core ...

This paper investigates the operation of the Dual Three-Phase Active Bridge (D3AB) converter topology as a multi-port converter, by taking the three-phase ac port and dc port on the primary side (ac(1) and dc(1)) and the galvanically isolated three-phase ac port and dc port on the secondary side (ac(2) and dc(2)) simultaneously into account. The basic working principle of the D3AB topology under multi-port operation and a strategy to ...