Wireless power transfer via harmonic current for electric vehicles application

A method that only using harmonic current to transfer wireless power for electric vehicles (EV) is proposed in this paper. The frequency limit of most high voltage high current IGBT is around 20 kHz which also limits the system frequency of the transformer. Due to the gain characteristic of the reso...

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Main Authors: Hulong Zeng, Shuitao Yang, Fangzheng Peng
Format: Conference Proceeding
Language:English
Subjects:
Electric vehicles
Electric Vehicles (EV)
harmonic
Harmonic analysis
Inductance
Power harmonic filters
Prototypes
Resonant frequency
wireless power transfer
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creator Hulong Zeng
Shuitao Yang
Fangzheng Peng
description A method that only using harmonic current to transfer wireless power for electric vehicles (EV) is proposed in this paper. The frequency limit of most high voltage high current IGBT is around 20 kHz which also limits the system frequency of the transformer. Due to the gain characteristic of the resonant tank is actually a band-pass filter, using one specific harmonic current to transfer power becomes available. By doing so, the system frequency can be raised up several times while the switching frequency remain the same. Higher system frequency leads to a more compact system. A 1 kW prototype with 20 cm air gap using 3 rd harmonic power is built to verify the method.
doi_str_mv 10.1109/APEC.2015.7104409
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The frequency limit of most high voltage high current IGBT is around 20 kHz which also limits the system frequency of the transformer. Due to the gain characteristic of the resonant tank is actually a band-pass filter, using one specific harmonic current to transfer power becomes available. By doing so, the system frequency can be raised up several times while the switching frequency remain the same. Higher system frequency leads to a more compact system. 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subjects Electric vehicles
Electric Vehicles (EV)
harmonic
Harmonic analysis
Inductance
Power harmonic filters
Prototypes
Resonant frequency
wireless power transfer
title Wireless power transfer via harmonic current for electric vehicles application
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