Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method

Tianhua Zhu; Fang Zhuo; Fangzhou Zhao; Ruijie Song; Feng Wang; Hao Yi

doi:10.1109/COMPEL49091.2020.9265763

Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method

Tianhua Zhu, Fang Zhuo, Fangzhou Zhao, Ruijie Song, Feng Wang, Hao Yi

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

4 Citations (Scopus)

Abstract

To solve the light-load problem of CLLC resonant converters, this paper proposes a comprehensive analysis of multiple phase-shift control based on improved fundamental harmonic approximation (FHA) method. A precise multi-harmonic approximated AC impedance model is firstly built to derive theanalytical relations between the output voltage gain and rms values of resonant currents of CLLC converters and three phase-shifts. Then, the influences of different phase-shifts on voltage gain andrms values of resonant currents are investigated with simulation verifications. Finally, an optimaldual phase-shift control achieving both effective voltage regulation and satisfying power efficiency is concluded and verified on a 18~25V/400V, 200W GaN based CLLC resonant converter prototype.

Original language	English
Title of host publication	2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Publisher	IEEE
Publication date	9 Nov 2020
Article number	9265763
ISBN (Print)	978-1-7281-7161-6
ISBN (Electronic)	978-1-7281-7160-9
DOIs	https://doi.org/10.1109/COMPEL49091.2020.9265763
Publication status	Published - 9 Nov 2020
Event	21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 - Aalborg, Denmark Duration: 9 Nov 2020 → 12 Nov 2020

Conference

Conference	21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020
Country/Territory	Denmark
City	Aalborg
Period	09/11/2020 → 12/11/2020

Series	IEEE Workshop on Control and Modeling for Power Electronics (COMPEL)
ISSN	1093-5142

Bibliographical note

Funding Information:
This work is supported by National Natural Science Foundation of China (51977171) and Shaanxi Provincial Key Research and Development Program under project (2019ZDLGY18-09).

Publisher Copyright:
© 2020 IEEE.

Keywords

CLLC resonant converters
dual phase-shift control
improved FHA method
light-load problem
multi-harmonic approximated AC impedance model
multiple phase-shift control

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@inproceedings{21b4b84275304e0a9c05fd48484b774b,

title = "Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method",

abstract = "To solve the light-load problem of CLLC resonant converters, this paper proposes a comprehensive analysis of multiple phase-shift control based on improved fundamental harmonic approximation (FHA) method. A precise multi-harmonic approximated AC impedance model is firstly built to derive theanalytical relations between the output voltage gain and rms values of resonant currents of CLLC converters and three phase-shifts. Then, the influences of different phase-shifts on voltage gain andrms values of resonant currents are investigated with simulation verifications. Finally, an optimaldual phase-shift control achieving both effective voltage regulation and satisfying power efficiency is concluded and verified on a 18~25V/400V, 200W GaN based CLLC resonant converter prototype.",

keywords = "CLLC resonant converters, dual phase-shift control, improved FHA method, light-load problem, multi-harmonic approximated AC impedance model, multiple phase-shift control",

author = "Tianhua Zhu and Fang Zhuo and Fangzhou Zhao and Ruijie Song and Feng Wang and Hao Yi",

note = "Funding Information: This work is supported by National Natural Science Foundation of China (51977171) and Shaanxi Provincial Key Research and Development Program under project (2019ZDLGY18-09). Publisher Copyright: {\textcopyright} 2020 IEEE.; 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020 ; Conference date: 09-11-2020 Through 12-11-2020",

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Zhu, T, Zhuo, F, Zhao, F, Song, R, Wang, F & Yi, H 2020, Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method. in 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020., 9265763, IEEE, IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) , 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020, Aalborg, Denmark, 09/11/2020. https://doi.org/10.1109/COMPEL49091.2020.9265763

Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method. / Zhu, Tianhua; Zhuo, Fang; Zhao, Fangzhou et al.
2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020. IEEE, 2020. 9265763 (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method

AU - Zhu, Tianhua

AU - Zhuo, Fang

AU - Zhao, Fangzhou

AU - Song, Ruijie

AU - Wang, Feng

AU - Yi, Hao

N1 - Funding Information: This work is supported by National Natural Science Foundation of China (51977171) and Shaanxi Provincial Key Research and Development Program under project (2019ZDLGY18-09). Publisher Copyright: © 2020 IEEE.

PY - 2020/11/9

Y1 - 2020/11/9

N2 - To solve the light-load problem of CLLC resonant converters, this paper proposes a comprehensive analysis of multiple phase-shift control based on improved fundamental harmonic approximation (FHA) method. A precise multi-harmonic approximated AC impedance model is firstly built to derive theanalytical relations between the output voltage gain and rms values of resonant currents of CLLC converters and three phase-shifts. Then, the influences of different phase-shifts on voltage gain andrms values of resonant currents are investigated with simulation verifications. Finally, an optimaldual phase-shift control achieving both effective voltage regulation and satisfying power efficiency is concluded and verified on a 18~25V/400V, 200W GaN based CLLC resonant converter prototype.

AB - To solve the light-load problem of CLLC resonant converters, this paper proposes a comprehensive analysis of multiple phase-shift control based on improved fundamental harmonic approximation (FHA) method. A precise multi-harmonic approximated AC impedance model is firstly built to derive theanalytical relations between the output voltage gain and rms values of resonant currents of CLLC converters and three phase-shifts. Then, the influences of different phase-shifts on voltage gain andrms values of resonant currents are investigated with simulation verifications. Finally, an optimaldual phase-shift control achieving both effective voltage regulation and satisfying power efficiency is concluded and verified on a 18~25V/400V, 200W GaN based CLLC resonant converter prototype.

KW - CLLC resonant converters

KW - dual phase-shift control

KW - improved FHA method

KW - light-load problem

KW - multi-harmonic approximated AC impedance model

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SN - 978-1-7281-7161-6

T3 - IEEE Workshop on Control and Modeling for Power Electronics (COMPEL)

BT - 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020

PB - IEEE

T2 - 21st IEEE Workshop on Control and Modeling for Power Electronics, COMPEL 2020

Y2 - 9 November 2020 through 12 November 2020

ER -

Zhu T, Zhuo F, Zhao F, Song R, Wang F, Yi H. Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method. In 2020 IEEE 21st Workshop on Control and Modeling for Power Electronics, COMPEL 2020. IEEE. 2020. 9265763. (IEEE Workshop on Control and Modeling for Power Electronics (COMPEL) ). doi: 10.1109/COMPEL49091.2020.9265763

Analysis of Multiple Phase-shift Control for Full-bridge CLLC Resonant Converter Based on Improved Fundamental Harmonic Approximation Method

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Keywords

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