A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique

Xue Wang; Huiqing Wen; Yinxiao Zhu; Guanying Chu; Rui Du

doi:10.1109/ECCE50734.2022.9947413

A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique

Xue Wang
, Huiqing Wen
, Yinxiao Zhu
, Guanying Chu
, Rui Du

Xi'an Jiaotong-Liverpool University

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

1 Citation (Scopus)

Abstract

To resolve the mismatching issues in photovoltaic (PV), different differential power processing (DPP) architectures have been presented. A novel DPP architecture is presented in this paper with a simple circuit and open-loop control. The proposed DPP converter shows symmetry and flexibility by utilizing the Cochvroft & Walton Circuit, where the PV string can be connected per side of the voltage multiplier (MV). The LLC inverter requires no feedback loop, which simplifies the circuit. Experimental results for the PV module with four submodules show that overall PV module output power and efficiency are both improved significantly under shading conditions. Furthermore, this proposed DPP converter has great advantages in cost-saving, especially in extended-long PV string.

Original language	English
Title of host publication	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781728193878
DOIs	https://doi.org/10.1109/ECCE50734.2022.9947413
Publication status	Published - 2022
Event	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 - Detroit, United States Duration: 9 Oct 2022 → 13 Oct 2022

Publication series

Name	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

Conference

Conference	2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022
Country/Territory	United States
City	Detroit
Period	9/10/22 → 13/10/22

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

differential power processing (DPP)
LLC
mismatch
Photovoltaic (PV)
voltage multiplier

Access to Document

10.1109/ECCE50734.2022.9947413

Cite this

Wang, X., Wen, H., Zhu, Y., Chu, G., & Du, R. (2022). A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique. In 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE50734.2022.9947413

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title = "A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique",

abstract = "To resolve the mismatching issues in photovoltaic (PV), different differential power processing (DPP) architectures have been presented. A novel DPP architecture is presented in this paper with a simple circuit and open-loop control. The proposed DPP converter shows symmetry and flexibility by utilizing the Cochvroft \& Walton Circuit, where the PV string can be connected per side of the voltage multiplier (MV). The LLC inverter requires no feedback loop, which simplifies the circuit. Experimental results for the PV module with four submodules show that overall PV module output power and efficiency are both improved significantly under shading conditions. Furthermore, this proposed DPP converter has great advantages in cost-saving, especially in extended-long PV string.",

keywords = "differential power processing (DPP), LLC, mismatch, Photovoltaic (PV), voltage multiplier",

author = "Xue Wang and Huiqing Wen and Yinxiao Zhu and Guanying Chu and Rui Du",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022 ; Conference date: 09-10-2022 Through 13-10-2022",

year = "2022",

doi = "10.1109/ECCE50734.2022.9947413",

language = "English",

series = "2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022",

}

Wang, X, Wen, H, Zhu, Y, Chu, G & Du, R 2022, A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique. in 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, Institute of Electrical and Electronics Engineers Inc., 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022, Detroit, United States, 9/10/22. https://doi.org/10.1109/ECCE50734.2022.9947413

A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique. / Wang, Xue; Wen, Huiqing; Zhu, Yinxiao et al.
2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. Institute of Electrical and Electronics Engineers Inc., 2022. (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022).

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

TY - GEN

T1 - A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique

AU - Wang, Xue

AU - Wen, Huiqing

AU - Zhu, Yinxiao

AU - Chu, Guanying

AU - Du, Rui

PY - 2022

Y1 - 2022

N2 - To resolve the mismatching issues in photovoltaic (PV), different differential power processing (DPP) architectures have been presented. A novel DPP architecture is presented in this paper with a simple circuit and open-loop control. The proposed DPP converter shows symmetry and flexibility by utilizing the Cochvroft & Walton Circuit, where the PV string can be connected per side of the voltage multiplier (MV). The LLC inverter requires no feedback loop, which simplifies the circuit. Experimental results for the PV module with four submodules show that overall PV module output power and efficiency are both improved significantly under shading conditions. Furthermore, this proposed DPP converter has great advantages in cost-saving, especially in extended-long PV string.

AB - To resolve the mismatching issues in photovoltaic (PV), different differential power processing (DPP) architectures have been presented. A novel DPP architecture is presented in this paper with a simple circuit and open-loop control. The proposed DPP converter shows symmetry and flexibility by utilizing the Cochvroft & Walton Circuit, where the PV string can be connected per side of the voltage multiplier (MV). The LLC inverter requires no feedback loop, which simplifies the circuit. Experimental results for the PV module with four submodules show that overall PV module output power and efficiency are both improved significantly under shading conditions. Furthermore, this proposed DPP converter has great advantages in cost-saving, especially in extended-long PV string.

KW - differential power processing (DPP)

KW - LLC

KW - mismatch

KW - Photovoltaic (PV)

KW - voltage multiplier

UR - https://www.scopus.com/pages/publications/85144077709

U2 - 10.1109/ECCE50734.2022.9947413

DO - 10.1109/ECCE50734.2022.9947413

M3 - Conference Proceeding

AN - SCOPUS:85144077709

T3 - 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

BT - 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022

Y2 - 9 October 2022 through 13 October 2022

ER -

Wang X, Wen H, Zhu Y, Chu G, Du R. A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique. In 2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022. Institute of Electrical and Electronics Engineers Inc. 2022. (2022 IEEE Energy Conversion Congress and Exposition, ECCE 2022). doi: 10.1109/ECCE50734.2022.9947413

A Symmetrical Architecture for PV String Using LLC-based Voltage Multiplier by Differential Power Processing Technique

Abstract

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UN SDGs

Keywords

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