Electrical Impact and Power Capability of the Battery Pack Equipped in the PHEVs

Battery is a commonly used energy storage component of the ESS (energy storage system) widely applied in the development of the PHEVs (plug-in hybrid electric vehicles). With the different system configurations and parameters selection, battery will undertake the different electrical stress, e.g., loss and current ripple which are believed to pose the discount of its longevity. This paper addresses the electrical impact and power capability of the battery pack under different system configurations. Influence of the internal impedance of the battery and capacitor will be emphasized. Simulation and experiments validated that, the topology of boost converter followed by a three-phase inverter has the advantages compared to the traditional stand-alone inverter-fed motor drive system in suppressing the high-order current harmonics and elevating the power capability.