Design methodology of a combined battery-ultracapacitor energy storage unit for vehicle power management

摘要: Hybrid and electric vehicles (HEV, EV) require some form of energy storage in order to achieve load leveling or efficiently manage power flows, mainly when accelerating decelerating. Traditionally, batteries have been used but recently ultracapacitors become potential candidates for HEV/EV applications. To this end, paper first presents a methodology determining whether an unit (ESU) should consist only batteries, combination both. An example illustrates the feasibility proposed ideas. Finally, concludes with cost analysis different ESU alternatives.