DC Charging of Heavy Commercial Plug-in Hybrid Electric Vehicles
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
DC-laddning av tunga kommersiella plug-in-hybridfordon (Swedish)
A solution to reduce exhaust emissions from heavy commercial vehicles are to haul the vehicles completely or partially electric. This means that the vehicle must contain a significant electric energy source. The large capacity of the energy source causes the vehicle to either sacrifice a large part of its up time to charge the source or apply a higher charge power at the cost of power losses and lifetime of the energy source. This thesis contains a pre-study of high-power DC-charge of hybrid batteries from existing infrastructure suited to electric hybrid cars. Following parts are included in the thesis: modeling of a battery pack and a DC-DC converter, formulation of a MPC controller for the battery pack, analysis of charging strategies and battery restrictions through simulations. The thesis results shows that a longer charging time increases the energy efficiency and reduces the degradation in the battery. It also shows that a charging strategy similar to constant-current-constant-voltage charging should be used for a full charge of an empty battery.
Place, publisher, year, edition, pages
2015. , 42 p.
PHEV, DC-Charge, Heavy Trucks, Battery Modeling, Half Bridge Converter Modeling
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:liu:diva-119618ISRN: LITH-ISY-EX--15/4878--SEOAI: oai:DiVA.org:liu-119618DiVA: diva2:825073
Scania CV AB
Subject / course
2015-06-17, Systemet, 13:15 (Swedish)