ABSTRACT
This chapter provides a new topology of bidirectional onboard converters to eliminate the key issues and to achieve high-power density, reliability, improved efficiency as well as small size, low weight, reduced cost, and low harmonic distortion. Its operational principles and control strategies in charging and discharging modes are presented. The chapter establishes the mechanisms of dynamic modes for the Bidirectional Single Stage Full Bridge Converter, analyzes its dynamic characteristics, and compares it to single-phase pulse width modulation converters that act as the first stage of typical two-stage topologies. The designs of passive components are presented to achieve a cc operation in each mode as well as low capacitor voltage ripple. Bidirectional converters have been used for off-board and onboard electric vehicle charging. The off-board ones use three pulse width modulation converters and bidirectional dc–dc converters. It is widely used in commercial areas because of its large size.
