Khomfoi, Surin

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Preferred name
Khomfoi, Surin
Alternative Name
Khomfoi, S.
Main Affiliation
Email
surin.kh@kmitl.ac.th

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    Item type:Publication,
    The Development of DC-Nano Grid with Wide-Range Wireless Power Transfer for EVs
    (2022-01-01)
    Pairindra, Worapong
    ;
    Khomfoi, Surin
    ;
    Takorabet, Noureddine
    ;
    Thounthong, Phatiphat
    This research paper presents a wireless power supply for electronic or electrical devices such as LED taillights or headlight bulbs on the electric vehicle (EVs). The main objectives of using wireless power transfer (WPT) are cost savings and the prevention of fires caused by the insulation burning due to overheating in the conventional cable. According to commercial necessity, the primary goal of the research is to simplify the power converter and transmission coils. Therefore, a high-frequency half-bridge inverter connected with a resonant tank compensator is selected for this task. The power transfer rate is set at 24V, 24W via the high-frequency inverter with 4SV DC input voltage. Apparently, the wireless power at the point load can be controlled at the desired value by using both MATLAB/Simulink and hardware implementations with different ranges of evaluation.
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    Item type:Publication,
    The implementation of fundamental harmonic approximation technique on electric vehicle wireless charger
    (2021-05-19)
    Pairindra, Worapong
    ;
    Khemmook, Panya
    ;
    Khomfoi, Surin
    This paper presents the electric vehicle (EV) wireless charger by using the practical design frequency converter. A 500 W LLC series resonant full-bridge converter for demonstrating prototype with the standard charging frequency range 85 kHz to 100 kHz is connected to the transmission coils with 10 cm air gap and performed a power transfer from the source to the EV batteries. The resonant converter with the Fundamental Harmonic Approximation (FHA) technique is chosen in this proposed paper for transferring the highly magnetic coupling between the transmitter side to the pickup side. The overall system is designed by MATLAB/Simulink program, and the experimental result efficiency can be measured out by approximately 80%.