EFFICIENCY ANALYSIS USING FLYWHEEL ENERGY STORAGE TECHNOLOGY FOR
REGENERATIVE BRAKE SYSTEMS IN ELECTRIC VEHICLES
Abstract
The increase in fossil fuel consumption used in conventional vehicles
has adversely affected the amount of carbon emissions in the atmosphere.
Due to this negativity, many problems such as global warming, noise
pollution and cost have emerged. In order to find solutions to these
problems, many studies have been carried out to increase the energy
storage capacity of Electric Vehicles (EV) since 1835. EVs produced as a
result of these studies work more efficiently than traditional tools.
However, the driving range problem and charging time are the biggest
disadvantages of these vehicles. These disadvantages are a major
obstacle for EVs to replace traditional tools. In this study, an
experimental study was conducted on flywheel-battery in-vehicle
topologies, which are recommended to be used to increase the range in EV
and hybrid electric vehicles. In the application, two flywheels with the
same rotor radius and different masses were used. Energy was produced
from the generator through these flywheels. This energy was employed to
charge the batteries. The stored energy and power amounts were
investigated depending on the variation of the moment of inertia of both
flywheels at the maximum and minimum levels. As a result of this
examination, it has been determined which of the flywheels with the same
rotor radius but different masses is more suitable for electric
vehicles.