Abstract
Plug-in hybrid electric vehicles (PHEVs) will play a
vital role in future sustainable transportation systems due to their
potential in terms of energy security, decreased environmental impact,
improved fuel economy, and better performance. Moreover,
new regulations have been established to improve the collective gas
mileage, cut greenhouse gas emissions, and reduce dependence on
foreign oil. This paper primarily focuses on two major thrust areas
of PHEVs. First, it introduces a grid-friendly bidirectional alternating
current/direct current ac/dc–dc/ac rectifier/inverter for
facilitating vehicle-to-grid (V2G) integration of PHEVs. Second,
it presents an integrated bidirectional noninverted buck–boost
converter that interfaces the energy storage device of the PHEV
to the dc link in both grid-connected and driving modes. The
proposed bidirectional converter has minimal grid-level disruptions
in terms of power factor and total harmonic distortion, with
less switching noise. The integrated bidirectional dc/dc converter
assists the grid interface converter to track the charge/discharge
power of the PHEV battery. In addition, while driving, the dc/dc
converter provides a regulated dc link voltage to the motor drive
and captures the braking energy during regenerative braking.
