Hybrid and plug-in electric vehicles use electricity as their
primary fuel or toimprove the eciency of conventional vehicle
designs. This new generationof vehicles,often called electric drive
vehicles, can be divided into three categories:hybrid electric
vehicles (HEs!, plug-in hybrid electric vehicles ("HEs!, and
all-electricvehicles(Es!. HEs are powered by an internal combustion
engine or otherpropulsion sourcethat runs on conventional or
alternative fuel and an electric motor that usesenergy storedin a
battery. The e#tra power provided by the electric motor allows for
asmaller engine,resulting in better fuel economy without sacri$cing
performance. HEscombine thebene$ts of high fuel economy and low
emissions with the power and range of
conventional vehicles. "HEs are powered by conventional fuels
and byelectricalenergy stored in a battery. %sing electricity from
the grid to charge thebattery some ofthe time costs less and
reduces petroleum consumption compared withconventionalvehicles.
"HEs can also reduce emissions, depending on the electricitysource.
Es usea battery to store the electrical energy that powers the
motor. E batteriesare charged byplugging the vehicle into an
electric power source.
&n this "ro'ect a universal "ower &nterface for all the
above discussed type ofvehicles. asically, the proposed converter
interfaces the energy storagedevice of thevehicle with the motor
drive and the e#ternal charger, in case of "HEs.
Theproposedconverter is capable of operating in all directions in
buc) or boost modeswith a noninverted output voltage (positive
output voltage with respect to the input!andbidirectional power
*ow. &n e#tension to the wor) the proposed "ower&nterface
is +ed to
a witched eluctance otor /rive and the performance is
analy0ed.
