Study of the control technique of the voltage bus conditioner for a DC power distribution system with multiple parallel loads in the electrical vehicle

An electrical vehicle (EV) is a huge issue in the automotive industry. The EV has many electrical units: electric motors, batteries, converters, etc. The DC power distribution system (PDS) is essential for the EV. The DC PDS offers many advantages. However, multiple loads in the DC PDS may affect the severe instability on the DC bus voltage. Therefore, a voltage bus conditioner (VBC) may use the DC PDS. The VBC is used to mitigate the voltage transient on the bus. A suitable control technique should be selected for the VBC. In this paper, PI compensator and sliding mode control (SMC) are designed and compared. The simulation results by PISM simulation package are presented for validating the proposed control techniques.