Energy management for Hybrid Electric Vehicles using load power fluctuation compensation - ultracapacitors and lithium-battery
Résumé
This paper presents ultracapacitors (U) and lithium-battery connection with an energy management strategy based on the frequency distribution approach. The module of ultracapacitors is linked to DC-bus through the buck-boost converter, and that of the lithium-battery is connected to DC-bus without a converter. DC/AC converter (inverter) and electrical machine (EM) are used to emulate the Hybrid Electric Vehicle (HEV) behavior. The contribution of this paper is focused on demand energy in HEV sharing between ultracapacitors module and battery pack according to the dynamic responses of these sources. The performances of the proposed method are evaluated through some simulations and experimental tests using a dynamic drive cycle.
Mots clés
Supercapacitors
Hybrid electric vehicles
Mathematical model
Batteries
Energy management
Frequency control
automotive electrics
DC-AC power convertors
energy management systems
hybrid electric vehicles
lithium compounds
load (electric)
secondary cells
supercapacitors
energy management
load power fluctuation compensation
frequency distribution approach
buck-boost converter
DC-bus
DC/AC converter
electrical machine
HEV behavior
ultracapacitors module
battery pack
dynamic drive cycle
Li-battery connection
Current control method
Buck-boost converter
DC/DC converters
Frequency approach
Lithium-battery
Hybrid Electric Vehicle
Polynomial control
Ultracapacitors
