Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation

Yuqi Wei; Dereje Woldegiorgis; Alan Mantooth

doi:10.1109/PEDG48541.2020.9244388

Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation

Yuqi Wei
, Dereje Woldegiorgis
, Alan Mantooth

University of Arkansas, Fayetteville

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

11 Scopus citations

Abstract

For the LLC resonant converter, pulse frequency modulation (PFM) is the most frequently used control strategy. However, for wide input or output operation range, a wide switching frequency range is required, which causes efficiency loss. Therefore, some fixed frequency control strategies are proposed for the LLC resonant converter, including phase shift modulation (PSM), pulse width modulation (PWN), and resonant frequency modulation (RFM). In this paper, a comprehensive comparisons of different control strategies are implemented. The operational principles and system control diagram for each control strategy are discussed. Then, comparisons among different fixed switching frequency control strategies are presented. Finally, the VIC LLC is selected as an example to demonstrate its operation and effectiveness.

Original language	English
Title of host publication	2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	63-68
Number of pages	6
ISBN (Electronic)	9781728169903
DOIs	https://doi.org/10.1109/PEDG48541.2020.9244388
State	Published - 28 Sep 2020
Externally published	Yes
Event	11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 - Dubrovnik, Croatia Duration: 28 Sep 2020 → 1 Oct 2020

Publication series

Name	2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

Conference

Conference	11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020
Country/Territory	Croatia
City	Dubrovnik
Period	28/09/20 → 1/10/20

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

LLC resonant converter
magnetic control
variable inductor
variable transformer

Access to Document

10.1109/PEDG48541.2020.9244388

Cite this

Wei, Y., Woldegiorgis, D., & Mantooth, A. (2020). Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation. In 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 (pp. 63-68). Article 9244388 (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PEDG48541.2020.9244388

Wei, Yuqi ; Woldegiorgis, Dereje ; Mantooth, Alan. / Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation. 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020. Institute of Electrical and Electronics Engineers Inc., 2020. pp. 63-68 (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020).

@inproceedings{1a057cc500a842dca403245078b63a91,

title = "Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation",

abstract = "For the LLC resonant converter, pulse frequency modulation (PFM) is the most frequently used control strategy. However, for wide input or output operation range, a wide switching frequency range is required, which causes efficiency loss. Therefore, some fixed frequency control strategies are proposed for the LLC resonant converter, including phase shift modulation (PSM), pulse width modulation (PWN), and resonant frequency modulation (RFM). In this paper, a comprehensive comparisons of different control strategies are implemented. The operational principles and system control diagram for each control strategy are discussed. Then, comparisons among different fixed switching frequency control strategies are presented. Finally, the VIC LLC is selected as an example to demonstrate its operation and effectiveness.",

keywords = "LLC resonant converter, magnetic control, variable inductor, variable transformer",

author = "Yuqi Wei and Dereje Woldegiorgis and Alan Mantooth",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020 ; Conference date: 28-09-2020 Through 01-10-2020",

year = "2020",

month = sep,

day = "28",

doi = "10.1109/PEDG48541.2020.9244388",

language = "英语",

series = "2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020",

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Wei, Y, Woldegiorgis, D & Mantooth, A 2020, Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation. in 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020., 9244388, 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020, Institute of Electrical and Electronics Engineers Inc., pp. 63-68, 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020, Dubrovnik, Croatia, 28/09/20. https://doi.org/10.1109/PEDG48541.2020.9244388

Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation. / Wei, Yuqi; Woldegiorgis, Dereje; Mantooth, Alan.
2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020. Institute of Electrical and Electronics Engineers Inc., 2020. p. 63-68 9244388 (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation

AU - Wei, Yuqi

AU - Woldegiorgis, Dereje

AU - Mantooth, Alan

PY - 2020/9/28

Y1 - 2020/9/28

N2 - For the LLC resonant converter, pulse frequency modulation (PFM) is the most frequently used control strategy. However, for wide input or output operation range, a wide switching frequency range is required, which causes efficiency loss. Therefore, some fixed frequency control strategies are proposed for the LLC resonant converter, including phase shift modulation (PSM), pulse width modulation (PWN), and resonant frequency modulation (RFM). In this paper, a comprehensive comparisons of different control strategies are implemented. The operational principles and system control diagram for each control strategy are discussed. Then, comparisons among different fixed switching frequency control strategies are presented. Finally, the VIC LLC is selected as an example to demonstrate its operation and effectiveness.

AB - For the LLC resonant converter, pulse frequency modulation (PFM) is the most frequently used control strategy. However, for wide input or output operation range, a wide switching frequency range is required, which causes efficiency loss. Therefore, some fixed frequency control strategies are proposed for the LLC resonant converter, including phase shift modulation (PSM), pulse width modulation (PWN), and resonant frequency modulation (RFM). In this paper, a comprehensive comparisons of different control strategies are implemented. The operational principles and system control diagram for each control strategy are discussed. Then, comparisons among different fixed switching frequency control strategies are presented. Finally, the VIC LLC is selected as an example to demonstrate its operation and effectiveness.

KW - LLC resonant converter

KW - magnetic control

KW - variable inductor

KW - variable transformer

UR - https://www.scopus.com/pages/publications/85097568810

U2 - 10.1109/PEDG48541.2020.9244388

DO - 10.1109/PEDG48541.2020.9244388

M3 - 会议稿件

AN - SCOPUS:85097568810

T3 - 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

SP - 63

EP - 68

BT - 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 11th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020

Y2 - 28 September 2020 through 1 October 2020

ER -

Wei Y, Woldegiorgis D, Mantooth A. Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation. In 2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020. Institute of Electrical and Electronics Engineers Inc. 2020. p. 63-68. 9244388. (2020 IEEE 11th International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2020). doi: 10.1109/PEDG48541.2020.9244388

Control Strategies Overview for LLC Resonant Converter with Fixed Frequency Operation

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Keywords

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