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Energies 2016,9, 10
ȱ
(b)ȱ
Figure15. Purple curve: the chargingcurrents for thebatterypack; greencurve: the inputvoltage
of theq-Zsource; cyancurve: theoutputvoltageproducedbytheHBridgemeasured(a)at the1μs
shoot-throughtime;and(b) at the1.5μsshoot-throughtime.
InFigure16a,b theq-Zsource inputvoltages (greencurve)are thesame,but theiroutputvoltages
(cyancurve)aredifferentdueto thedifferentboost factors.Unlike thesquare-wavevoltagesproduced
bytheHBridge, theq-Zsourceoutputvoltagesarepulsatileandalwayspositive. In theshoot-through
state,where theq-Zsourceoutputvoltage equals zero, theq-Zsource input current (purple curve)
increaseswithapositiveslope.However, itdecreaseswithanegativeslopewhentheq-Zsourceenters
into thenon-shoot-throughstate.
Figure17showstheoutputcurrents (purplecurve)andvoltages (cyancurve)producedbytheH
Bridge,whichvalidate that thesystemisbasically in theresonantstate.However, thequasi-resonant
state isnotbeneficial forsoft-switching,andhence,efficiency improvement. Inpractice, thecurrent
producedbytheHBridgeshould lag thevoltage toacertaindegree, thusanadditional1nFcapacitor
is added into the transmitter capacitor array in thispaper. Thegreencurve represents thevoltage
across theq-Zsourcecapacitor (C2 inFigure6), andit is smaller thantheoutputvoltageproducedby
theHBridge,but it isbigger thanthe inputvoltageof theq-ZsourceshowninFigure16.
ȱ
(a)ȱ
Figure16.Cont.
320
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