Abstract:
Intelligent energy storage system was design and presented by using a battery pack
connected in parallel with a supercapacitor which is directly connected to the load, the
battery is connected to a parallel bi-directional DC/DC converter which has as a main job
to regulate the output current of the battery so it can match the supercapacitor current and
reduce the output current’s ripples. The directly connected supercapacitor used in the
intelligent energy storage system to reduce the pressure on the battery pack either in the
quick acceleration because it required a huge power for a short period, or in the braking
state where the electrical vehicle convert the kinetic rolling energy into electrical energy
to charge the storage system, where the motor produce a huge amount of power, so the
directly connected supercapacitor capture this energy which prevent high power loading
on the battery, which improve the whole performance of the vehicle by increasing the life
cycle of the battery pack. The Fuzzy Logic Controller was designed to determine the Duty
Cycle (the Duty cycle is calculated based on the desired motor speed or the output motor
current), which control the DC/DC converter. The simulation was done on SIMULINK MATLAB platform
