Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation

Kangan Wang; Lixun Zhu; Weimin Wu; Youngjong Ko; Rongwu Zhu

doi:10.1109/ECCE-Asia49820.2021.9479315

Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation

Kangan Wang
, Lixun Zhu
, Weimin Wu
, Youngjong Ko
, Rongwu Zhu

Shanghai Maritime University

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

9 Scopus citations

Abstract

The cascaded H-bridge (CHB) multilevel converter is a promising topology for large-scale photovoltaic (PV) systems. However, the different PV panels may generate different power, which results in the inter-module and inter-phase power imbalance. Consequently, the over-modulation caused by the inter-module and inter-phase power imbalance is one of the key issues for the CHB-based PV system. This paper analyzes the theoretical constraints on system operation range caused by power imbalance and discusses the necessary and sufficient condition to achieve complete power balance in modular cascaded PV systems based on graph-theory model. According to the graph-theory model, several derivate topology structures are presented and the basic simulation and experimental results are shown to verify their power balancing ability.

Original language	English
Title of host publication	Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	730-735
Number of pages	6
ISBN (Electronic)	9781728163444
DOIs	https://doi.org/10.1109/ECCE-Asia49820.2021.9479315
State	Published - 24 May 2021
Externally published	Yes
Event	12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 - Virtual, Singapore, Singapore Duration: 24 May 2021 → 27 May 2021

Publication series

Name	Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

Conference

Conference	12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021
Country/Territory	Singapore
City	Virtual, Singapore
Period	24/05/21 → 27/05/21

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

cascaded H-bridge
graph-theory model
isolated DC/DC converter
power imbalance

Access to Document

10.1109/ECCE-Asia49820.2021.9479315

Cite this

Wang, K., Zhu, L., Wu, W., Ko, Y., & Zhu, R. (2021). Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation. In Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 (pp. 730-735). Article 9479315 (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ECCE-Asia49820.2021.9479315

Wang, Kangan ; Zhu, Lixun ; Wu, Weimin et al. / Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems : Power Imbalance and Topology Derivation. Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021. Institute of Electrical and Electronics Engineers Inc., 2021. pp. 730-735 (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021).

@inproceedings{8e828925436245158b5e84a1d8f99efb,

title = "Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation",

abstract = "The cascaded H-bridge (CHB) multilevel converter is a promising topology for large-scale photovoltaic (PV) systems. However, the different PV panels may generate different power, which results in the inter-module and inter-phase power imbalance. Consequently, the over-modulation caused by the inter-module and inter-phase power imbalance is one of the key issues for the CHB-based PV system. This paper analyzes the theoretical constraints on system operation range caused by power imbalance and discusses the necessary and sufficient condition to achieve complete power balance in modular cascaded PV systems based on graph-theory model. According to the graph-theory model, several derivate topology structures are presented and the basic simulation and experimental results are shown to verify their power balancing ability.",

keywords = "cascaded H-bridge, graph-theory model, isolated DC/DC converter, power imbalance",

author = "Kangan Wang and Lixun Zhu and Weimin Wu and Youngjong Ko and Rongwu Zhu",

note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021 ; Conference date: 24-05-2021 Through 27-05-2021",

year = "2021",

month = may,

day = "24",

doi = "10.1109/ECCE-Asia49820.2021.9479315",

language = "英语",

series = "Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021",

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Wang, K, Zhu, L, Wu, W, Ko, Y & Zhu, R 2021, Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation. in Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021., 9479315, Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021, Institute of Electrical and Electronics Engineers Inc., pp. 730-735, 12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021, Virtual, Singapore, Singapore, 24/05/21. https://doi.org/10.1109/ECCE-Asia49820.2021.9479315

Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation. / Wang, Kangan; Zhu, Lixun; Wu, Weimin et al.
Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021. Institute of Electrical and Electronics Engineers Inc., 2021. p. 730-735 9479315 (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021).

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

TY - GEN

T1 - Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems

T2 - 12th IEEE Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

AU - Wang, Kangan

AU - Zhu, Lixun

AU - Wu, Weimin

AU - Ko, Youngjong

AU - Zhu, Rongwu

PY - 2021/5/24

Y1 - 2021/5/24

N2 - The cascaded H-bridge (CHB) multilevel converter is a promising topology for large-scale photovoltaic (PV) systems. However, the different PV panels may generate different power, which results in the inter-module and inter-phase power imbalance. Consequently, the over-modulation caused by the inter-module and inter-phase power imbalance is one of the key issues for the CHB-based PV system. This paper analyzes the theoretical constraints on system operation range caused by power imbalance and discusses the necessary and sufficient condition to achieve complete power balance in modular cascaded PV systems based on graph-theory model. According to the graph-theory model, several derivate topology structures are presented and the basic simulation and experimental results are shown to verify their power balancing ability.

AB - The cascaded H-bridge (CHB) multilevel converter is a promising topology for large-scale photovoltaic (PV) systems. However, the different PV panels may generate different power, which results in the inter-module and inter-phase power imbalance. Consequently, the over-modulation caused by the inter-module and inter-phase power imbalance is one of the key issues for the CHB-based PV system. This paper analyzes the theoretical constraints on system operation range caused by power imbalance and discusses the necessary and sufficient condition to achieve complete power balance in modular cascaded PV systems based on graph-theory model. According to the graph-theory model, several derivate topology structures are presented and the basic simulation and experimental results are shown to verify their power balancing ability.

KW - cascaded H-bridge

KW - graph-theory model

KW - isolated DC/DC converter

KW - power imbalance

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AN - SCOPUS:85114213626

T3 - Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

SP - 730

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BT - Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021

PB - Institute of Electrical and Electronics Engineers Inc.

Y2 - 24 May 2021 through 27 May 2021

ER -

Wang K, Zhu L, Wu W, Ko Y, Zhu R. Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation. In Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021. Institute of Electrical and Electronics Engineers Inc. 2021. p. 730-735. 9479315. (Proceedings of the Energy Conversion Congress and Exposition - Asia, ECCE Asia 2021). doi: 10.1109/ECCE-Asia49820.2021.9479315

Cascaded H-bridge Converter-based Large-Scale Photovoltaic Systems: Power Imbalance and Topology Derivation

Abstract

Publication series

Conference

UN SDGs

Keywords

Access to Document

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