An Efficiency-oriented Two-stage Structure Employing Partial Power Regulation

Mingxiao Li; Ziwei Ouyang; Michael A.E. Andersen; Gang Wang

doi:10.1109/IPEMC-ECCEAsia48364.2020.9367921

An Efficiency-oriented Two-stage Structure Employing Partial Power Regulation

Mingxiao Li
, Ziwei Ouyang^*
, Michael A.E. Andersen
, Gang Wang

^*Corresponding author for this work

Chinese Academy of Sciences

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

Abstract

An improved two stage structure with partial power regulation concept is proposed in this paper. The partial input power is regulated by a pre-regulator, while the full input power is transferred by a high frequency and high efficiency LCLC resonant converter. It serves as a second stage and operates as a DC transformer (DCX) to boost the input voltage and provide galvanic isolation. The proposed architecture facilitates reduced secondary device ratings of the active clamp flyback (ACF) converter. A 24-32V input, 432V, 432W output isolated dc-dc converter for photovoltaic applications is built to verify the effectiveness of the proposed circuit structure. The peak efficiency of 96% is achieved with 278W/inch3.

Original language	English
Title of host publication	Proceedings of IEEE 9^th International Power Electronics and Motion Control Conference
Publisher	IEEE
Publication date	29 Nov 2020
Pages	2104-2109
Article number	9367921
ISBN (Electronic)	9781728153018
DOIs	https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367921
Publication status	Published - 29 Nov 2020
Event	9^th IEEE International Power Electronics and Motion Control Conference - Nanjing, China Duration: 29 Nov 2020 → 2 Dec 2020

Conference

Conference	9^th IEEE International Power Electronics and Motion Control Conference
Country/Territory	China
City	Nanjing
Period	29/11/2020 → 02/12/2020

Bibliographical note

Publisher Copyright:
© 2020 IEEE.

Keywords

High frequency
High power density
LCLC resonant converter
Partial power regulation
Two stage structure

UN SDGs

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

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10.1109/IPEMC-ECCEAsia48364.2020.9367921

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title = "An Efficiency-oriented Two-stage Structure Employing Partial Power Regulation",

abstract = "An improved two stage structure with partial power regulation concept is proposed in this paper. The partial input power is regulated by a pre-regulator, while the full input power is transferred by a high frequency and high efficiency LCLC resonant converter. It serves as a second stage and operates as a DC transformer (DCX) to boost the input voltage and provide galvanic isolation. The proposed architecture facilitates reduced secondary device ratings of the active clamp flyback (ACF) converter. A 24-32V input, 432V, 432W output isolated dc-dc converter for photovoltaic applications is built to verify the effectiveness of the proposed circuit structure. The peak efficiency of 96\% is achieved with 278W/inch3.",

keywords = "High frequency, High power density, LCLC resonant converter, Partial power regulation, Two stage structure",

author = "Mingxiao Li and Ziwei Ouyang and Andersen, \{Michael A.E.\} and Gang Wang",

note = "Publisher Copyright: {\textcopyright} 2020 IEEE.; 9<sup>th</sup> IEEE International Power Electronics and Motion Control Conference, IPEMC 2020 ECCE Asia ; Conference date: 29-11-2020 Through 02-12-2020",

year = "2020",

month = nov,

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doi = "10.1109/IPEMC-ECCEAsia48364.2020.9367921",

language = "English",

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booktitle = "Proceedings of IEEE 9th International Power Electronics and Motion Control Conference",

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Li, M, Ouyang, Z , Andersen, MAE & Wang, G 2020, An Efficiency-oriented Two-stage Structure Employing Partial Power Regulation. in Proceedings of IEEE 9^th International Power Electronics and Motion Control Conference., 9367921, IEEE, pp. 2104-2109, 9^th IEEE International Power Electronics and Motion Control Conference, Nanjing, China, 29/11/2020. https://doi.org/10.1109/IPEMC-ECCEAsia48364.2020.9367921

An Efficiency-oriented Two-stage Structure Employing Partial Power Regulation. / Li, Mingxiao; Ouyang, Ziwei ; Andersen, Michael A.E. et al.
Proceedings of IEEE 9^th International Power Electronics and Motion Control Conference. IEEE, 2020. p. 2104-2109 9367921.

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

TY - GEN

T1 - An Efficiency-oriented Two-stage Structure Employing Partial Power Regulation

AU - Li, Mingxiao

AU - Ouyang, Ziwei

AU - Andersen, Michael A.E.

AU - Wang, Gang

PY - 2020/11/29

Y1 - 2020/11/29

N2 - An improved two stage structure with partial power regulation concept is proposed in this paper. The partial input power is regulated by a pre-regulator, while the full input power is transferred by a high frequency and high efficiency LCLC resonant converter. It serves as a second stage and operates as a DC transformer (DCX) to boost the input voltage and provide galvanic isolation. The proposed architecture facilitates reduced secondary device ratings of the active clamp flyback (ACF) converter. A 24-32V input, 432V, 432W output isolated dc-dc converter for photovoltaic applications is built to verify the effectiveness of the proposed circuit structure. The peak efficiency of 96% is achieved with 278W/inch3.

AB - An improved two stage structure with partial power regulation concept is proposed in this paper. The partial input power is regulated by a pre-regulator, while the full input power is transferred by a high frequency and high efficiency LCLC resonant converter. It serves as a second stage and operates as a DC transformer (DCX) to boost the input voltage and provide galvanic isolation. The proposed architecture facilitates reduced secondary device ratings of the active clamp flyback (ACF) converter. A 24-32V input, 432V, 432W output isolated dc-dc converter for photovoltaic applications is built to verify the effectiveness of the proposed circuit structure. The peak efficiency of 96% is achieved with 278W/inch3.

KW - High frequency

KW - High power density

KW - LCLC resonant converter

KW - Partial power regulation

KW - Two stage structure

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M3 - Article in proceedings

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SP - 2104

EP - 2109

BT - Proceedings of IEEE 9th International Power Electronics and Motion Control Conference

PB - IEEE

T2 - 9<sup>th</sup> IEEE International Power Electronics and Motion Control Conference

Y2 - 29 November 2020 through 2 December 2020

ER -

An Efficiency-oriented Two-stage Structure Employing Partial Power Regulation

Abstract

Conference

Bibliographical note

Keywords

UN SDGs

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