Energy Management in Electric Vehicle based on Frequency sharing approach, using Fuel cells, Lithium batteries and Supercapacitors
Résumé
This paper deals with an energy management improvement based on frequency sharing approach for an electric vehicle. In order to satisfy the traction/propulsion system requirement, the Fuel cell (FC) system is assisted by lithium-ion batteries and Supercapacitors (SC). Bidirectional Buck Boost converters link the batteries and Supercapacitors to the DC-Bus. The FC stack is connected to the DC-Bus by an interleaved Boost DC-DC converter. The traction/propulsion motor is a permanent magnet synchronous motor (PMSM) coupled to a DC motor in order to emulate the vehicle's load and energy requirements during the driven cycle. The DC-Bus feeds the permanent magnet synchronous motor via a bidirectional DC-AC converter. The contribution of this study involves EV's energy effort sharing between Supercapacitors, Fuel cells and Lithium-ion batteries, taking into account the dynamic responses and electrical performances of each energy sources. The effectiveness of the control is verified through simulations performed on Matlab/Simulink software.
Mots clés
Mathematical model
Batteries
Resistance
Fuel cells
Supercapacitors
Vehicle dynamics
Voltage control
DC-AC power convertors
DC-DC power convertors
electric vehicles
energy management systems
fuel cell vehicles
permanent magnet motors
secondary cells
supercapacitors
synchronous motors
Bidirectional Buck Boost converters
DC-Bus
interleaved Boost DC-DC converter
traction/propulsion motor
permanent magnet synchronous motor
DC motor
bidirectional DC-AC converter
fuel cells
lithium-ion batteries
energy sources
electric vehicle
lithium batteries
Fuel cell system
frequency sharing
energy management
traction/propulsion system
PMSM
Interleaved Boost DC-DC converter
DC-AC converter
Buck-Boost converter
Frequency sharing approach
Fuel cell
Lithium batteries
Energy management
Electric vehicles