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Energies 2017,10, 1217
Figure54.Converterarrangement inPFCV.Adaptedfrom[35].AnAC-DCconverter isusedtoconvert
thepowerfromthegrid;DC-DCconverter isusedforpowerexchangebetweentheDCbusandbattery;
boostconverter isusedtomakethevoltagegeneratedfromthefuelcell stacksuitable for theDCbus.
Bidirectionalconvertersallowtransmissionofpower fromthemotors to theenergysourcesand
also fromvehicle togrid.Novel topologies forbidirectionalAC/DC-DC/DCconverters tobeused
inPHEVsarebeingresearched[103,108–112], suchaconfiguration inshowninFigure55.Koketal.,
showeddifferentDC-DCconverterarrangements forEVsusingmultipleenergysources in [94]which
arepresentedinFigure56. Thefirstsystemhasbothbatteryandultracapacitoraddedincascade,while
thesecondonehas themconnected inparallel. Thethirdoneshowsasystememployingfuelcells, and
battery forbackup. In [113],Koushkietal., classifiedbidirectionalAC-DCconverters into twomain
groups: LowfrequencyAC-HighfrequencyAC-DC(Figure57), andLowfrequencyAC-DC-High
frequencyAC-DC(Figure58). Thefirstkindcanalsobecalledsingle-stageconverterswhere the latter
maybedescribedas two-stage,whichcanbe justifiedfromtheir topologies. Convertersemployed
forEVapplicationarecompiled inTable24. Fromthis table, it isevident thatstepdownconverters
arerequiredforchargingthebatteries fromahighervoltagegridvoltage,bidirectionalconvertersare
neededforprovidingpowerflowinbothdirections,andspecializedconverterssuchas the last three,
areneededforbetterchargingperformances.
AC-DCconvertersareusedtocharge thebatteries fromACsupply-lines;DC-DCconvertersare
requiredforsendingpower to themotors fromthebatteries. Thepowerflowcanbereversed incase
of regenerativeactionsorV2G.Bidirectionalconvertersarerequired insuchcases.Differentconverter
configurationshavedifferentadvantagesandshortcomingswhichengendereda lotof researchand
proliferationofhybridconverter topologies.
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Emerging Technologies for Electric and Hybrid Vehicles
- Titel
- Emerging Technologies for Electric and Hybrid Vehicles
- Herausgeber
- MDPI
- Ort
- Basel
- Datum
- 2017
- Sprache
- englisch
- Lizenz
- CC BY-NC-ND 4.0
- ISBN
- 978-3-03897-191-7
- Abmessungen
- 17.0 x 24.4 cm
- Seiten
- 376
- Schlagwörter
- electric vehicle, plug-in hybrid electric vehicle (PHEV), energy sources, energy management strategy, energy-storage system, charging technologies, control algorithms, battery, operating scenario, wireless power transfer (WPT)
- Kategorie
- Technik