Switching device dead time optimization of resonant double-sided LCC wireless charging system for electric vehicles

Xi Zhang; Ziyang Lai; Rui Xiong; Zhe Li; Zhimin Zhang; Liang Song

doi:10.3390/en10111772

Switching device dead time optimization of resonant double-sided LCC wireless charging system for electric vehicles

Xi Zhang^*, Ziyang Lai, Rui Xiong, Zhe Li, Zhimin Zhang, Liang Song

^*Corresponding author for this work

School of Mechanical Engineering

Shanghai Jiao Tong University

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

Aiming at the reduction of the influence of the dead time setting on power level and efficiency of the inverter of double-sided LCC resonant wireless power transfer (WPT) system, a dead time soft switching optimization method for metal-oxide-semiconductor field-effect transistor (MOSFET) is proposed. At first, the mathematic description of double-sided LCC resonant wireless charging system is established, and the operating mode is analyzed as well, deducing the quantitative characteristic that the secondary side compensation capacitor C₂ can be adjusted to ensure that the circuit is inductive. A dead time optimization design method is proposed, contributing to achieving zero-voltage switching (ZVS) of the inverter, which is closely related to the performance of the WPT system. In the end, a prototype is built. The experimental results verify that dead time calculated by this optimized method can ensure the soft switching of the inverter MOSFET and promote the power and efficiency of the WPT.

Original language	English
Article number	1772
Journal	Energies
Volume	10
Issue number	11
DOIs	https://doi.org/10.3390/en10111772
Publication status	Published - Nov 2017

Keywords

Dead time
Electric vehicles
Inverter
Resonant wireless charging
Soft switching

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/en10111772

Cite this

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title = "Switching device dead time optimization of resonant double-sided LCC wireless charging system for electric vehicles",

abstract = "Aiming at the reduction of the influence of the dead time setting on power level and efficiency of the inverter of double-sided LCC resonant wireless power transfer (WPT) system, a dead time soft switching optimization method for metal-oxide-semiconductor field-effect transistor (MOSFET) is proposed. At first, the mathematic description of double-sided LCC resonant wireless charging system is established, and the operating mode is analyzed as well, deducing the quantitative characteristic that the secondary side compensation capacitor C2 can be adjusted to ensure that the circuit is inductive. A dead time optimization design method is proposed, contributing to achieving zero-voltage switching (ZVS) of the inverter, which is closely related to the performance of the WPT system. In the end, a prototype is built. The experimental results verify that dead time calculated by this optimized method can ensure the soft switching of the inverter MOSFET and promote the power and efficiency of the WPT.",

keywords = "Dead time, Electric vehicles, Inverter, Resonant wireless charging, Soft switching",

author = "Xi Zhang and Ziyang Lai and Rui Xiong and Zhe Li and Zhimin Zhang and Liang Song",

note = "Publisher Copyright: {\textcopyright} 2017 by the authors.",

year = "2017",

month = nov,

doi = "10.3390/en10111772",

language = "English",

volume = "10",

journal = "Energies",

issn = "1996-1073",

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TY - JOUR

T1 - Switching device dead time optimization of resonant double-sided LCC wireless charging system for electric vehicles

AU - Zhang, Xi

AU - Lai, Ziyang

AU - Xiong, Rui

AU - Li, Zhe

AU - Zhang, Zhimin

AU - Song, Liang

PY - 2017/11

Y1 - 2017/11

N2 - Aiming at the reduction of the influence of the dead time setting on power level and efficiency of the inverter of double-sided LCC resonant wireless power transfer (WPT) system, a dead time soft switching optimization method for metal-oxide-semiconductor field-effect transistor (MOSFET) is proposed. At first, the mathematic description of double-sided LCC resonant wireless charging system is established, and the operating mode is analyzed as well, deducing the quantitative characteristic that the secondary side compensation capacitor C2 can be adjusted to ensure that the circuit is inductive. A dead time optimization design method is proposed, contributing to achieving zero-voltage switching (ZVS) of the inverter, which is closely related to the performance of the WPT system. In the end, a prototype is built. The experimental results verify that dead time calculated by this optimized method can ensure the soft switching of the inverter MOSFET and promote the power and efficiency of the WPT.

AB - Aiming at the reduction of the influence of the dead time setting on power level and efficiency of the inverter of double-sided LCC resonant wireless power transfer (WPT) system, a dead time soft switching optimization method for metal-oxide-semiconductor field-effect transistor (MOSFET) is proposed. At first, the mathematic description of double-sided LCC resonant wireless charging system is established, and the operating mode is analyzed as well, deducing the quantitative characteristic that the secondary side compensation capacitor C2 can be adjusted to ensure that the circuit is inductive. A dead time optimization design method is proposed, contributing to achieving zero-voltage switching (ZVS) of the inverter, which is closely related to the performance of the WPT system. In the end, a prototype is built. The experimental results verify that dead time calculated by this optimized method can ensure the soft switching of the inverter MOSFET and promote the power and efficiency of the WPT.

KW - Dead time

KW - Electric vehicles

KW - Inverter

KW - Resonant wireless charging

KW - Soft switching

UR - http://www.scopus.com/inward/record.url?scp=85036613246&partnerID=8YFLogxK

U2 - 10.3390/en10111772

DO - 10.3390/en10111772

M3 - Article

AN - SCOPUS:85036613246

SN - 1996-1073

VL - 10

JO - Energies

JF - Energies

IS - 11

M1 - 1772

ER -

Switching device dead time optimization of resonant double-sided LCC wireless charging system for electric vehicles

Abstract

Keywords

UN SDGs

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