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Author: search.filters.author.Khan-Ngern, WerachetSubject: search.filters.subject.electric vehicle (EV)

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    Short range wireless power charging on small electric vehicles
    (2014-12-23)
    Khan-Ngern, Werachet
    ;
    Zenkner, Heinz
    This paper presents the research work focusing on charging the energy via the air to a small electric vehicle (EV). This work shows not only the possibility of wireless power charging, but also the electromagnetic compatibility (EM C) issue is taken into account. The charging system is described and set up using the resonance coupling effect and single-ended primary-inductor converter (SEPIC) for a low DC power charging The transmitting power is applied at a frequency of 6.78 M Hz across a gap in the short range between 100 mm to 200 mm The experimental results show that the maximum efficiency up to 80 % were acheived to charge to a three wheel electric scooter 36 V system up to 14 W. The wireless char ging has been studied on radiated emission during charging mode at transmitter, receivers and at the gap between transmitter and receiver.
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    Wireless power charging on electric vehicles
    (2014-10-15)
    Khan-Ngern, Werachet
    ;
    Zenkner, Heinz
    This paper presents wireless power charging to a electric vehicle (EV) focusing on resonant topology. The charging system is described and set up using the resonance coupling effect and single-ended primary-inductor converter (SEPIC) for a low DC charging. The transmitting power is applied at a frequency of 6.78 MHz across a gap in the short range between 10 cm to 20 cm. The experimental results show that the maximum efficiency up to 80 % from transmitter to receiver. The EV charging using wireless charging has been confirmed with park and ride demonstration at 10 W power charging scale. The real time of wireless power charging can be monitored via Zigbee system. This work shows not only the possibility of wireless power charging, but also the electromagnetic compatibility (EMC) issue is taken into account.