Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle

The high charging efficiency of LLC resonant converters over a very wide range of load conditions in electric vehicle charging systems has long been a research hotspot. In this paper, a hybrid control method is proposed for LLC resonant converter by combining pulse width modulation (PWM) and burst c...

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Main Authors: Yuntao Yue, Yufan Liu, Jiaran Zhang, Hongwei Zhao, Jin Yang
Format: Article
Language:English
Published: IEEE 2024-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/10468596/
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author Yuntao Yue
Yufan Liu
Jiaran Zhang
Hongwei Zhao
Jin Yang
author_facet Yuntao Yue
Yufan Liu
Jiaran Zhang
Hongwei Zhao
Jin Yang
author_sort Yuntao Yue
collection DOAJ
description The high charging efficiency of LLC resonant converters over a very wide range of load conditions in electric vehicle charging systems has long been a research hotspot. In this paper, a hybrid control method is proposed for LLC resonant converter by combining pulse width modulation (PWM) and burst control to address the issues of small excitation current and limited output voltage range under the light load condition. The resonant current energy in the burst-on period is used to supplement the missing excitation current energy from PWM control zero voltage switching to realize PWM-Burst control. Therefore, a hybrid control of PFM and PWM-Burst is employed for LLC resonant converters under full load conditions. The proposed hybrid control method focuses on steady-state operation, and its operating principles are introduced and analyzed. Finally, simulation and experiments were conducted through Matlab-Simulink to verify the feasibility of the proposed method, and a 1-kW laboratory prototype was constructed to validate the effectiveness and advantages of the proposed method.
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spelling doaj.art-06636e56b75640fa8f059c3421be9a9d2024-04-15T23:01:08ZengIEEEIEEE Access2169-35362024-01-0112518595186810.1109/ACCESS.2024.337639210468596Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric VehicleYuntao Yue0https://orcid.org/0000-0003-2753-5534Yufan Liu1https://orcid.org/0009-0009-4246-3103Jiaran Zhang2Hongwei Zhao3Jin Yang4School of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing, ChinaSchool of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing, ChinaSchool of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing, ChinaSchool of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing, ChinaSchool of Electrical and Information Engineering, Beijing University of Civil Engineering and Architecture, Beijing, ChinaThe high charging efficiency of LLC resonant converters over a very wide range of load conditions in electric vehicle charging systems has long been a research hotspot. In this paper, a hybrid control method is proposed for LLC resonant converter by combining pulse width modulation (PWM) and burst control to address the issues of small excitation current and limited output voltage range under the light load condition. The resonant current energy in the burst-on period is used to supplement the missing excitation current energy from PWM control zero voltage switching to realize PWM-Burst control. Therefore, a hybrid control of PFM and PWM-Burst is employed for LLC resonant converters under full load conditions. The proposed hybrid control method focuses on steady-state operation, and its operating principles are introduced and analyzed. Finally, simulation and experiments were conducted through Matlab-Simulink to verify the feasibility of the proposed method, and a 1-kW laboratory prototype was constructed to validate the effectiveness and advantages of the proposed method.https://ieeexplore.ieee.org/document/10468596/Burst controlelectric vehicleLLC resonant converterPFM controlPWM control
spellingShingle Yuntao Yue
Yufan Liu
Jiaran Zhang
Hongwei Zhao
Jin Yang
Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle
IEEE Access
Burst control
electric vehicle
LLC resonant converter
PFM control
PWM control
title Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle
title_full Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle
title_fullStr Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle
title_full_unstemmed Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle
title_short Hybrid Control Method of Full-Bridge LLC Resonant Converter Based on Electric Vehicle
title_sort hybrid control method of full bridge llc resonant converter based on electric vehicle
topic Burst control
electric vehicle
LLC resonant converter
PFM control
PWM control
url https://ieeexplore.ieee.org/document/10468596/
work_keys_str_mv AT yuntaoyue hybridcontrolmethodoffullbridgellcresonantconverterbasedonelectricvehicle
AT yufanliu hybridcontrolmethodoffullbridgellcresonantconverterbasedonelectricvehicle
AT jiaranzhang hybridcontrolmethodoffullbridgellcresonantconverterbasedonelectricvehicle
AT hongweizhao hybridcontrolmethodoffullbridgellcresonantconverterbasedonelectricvehicle
AT jinyang hybridcontrolmethodoffullbridgellcresonantconverterbasedonelectricvehicle