Journal
IEEE TRANSACTIONS ON SUSTAINABLE ENERGY
Volume 4, Issue 4, Pages 867-876Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TSTE.2013.2253139
Keywords
Dynamically restricted search space; electric vehicle (EV); energy management system (EMS); power sources hybridization; simulated annealing
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Funding
- Portuguese FCT-Science and Technology Foundation [MIT/SET/0018/2009, PTDC/EEA-EEL/121284/2010, FCOMP-01-0124-FEDER-020391, SFRH/BD/36094/2007]
- Fundação para a Ciência e a Tecnologia [SFRH/BD/36094/2007, MIT/SET/0018/2009, PTDC/EEA-EEL/121284/2010] Funding Source: FCT
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This paper presents a novel energy management strategy for a hybridized power source small urban electric vehicle (EV). First, an analysis of load requirements for typical urban driving cycles is presented. Thereafter, the energy and power management issues are addressed for a multisource EV to define an improved management architecture. A dynamically restricted search space strategy coupled with a simulated annealing technique is exploited to accomplish the global optimization of the energy management system (EMS). The control of the dc/dc converter operations based on this EMS is also presented. The multiple sources have been simulated using an overall model implemented in Matlab/Simulink. A reduced-scale prototype has been built to analyze the performance of the energy management strategy. The results obtained show that energy management has been enhanced leading to an increase of the vehicle performance with reduced size embarked sources.
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