Medium Voltage Large-Scale Grid-Connected Photovoltaic Systems Using Cascaded H-Bridge and Modular Multilevel Converters: A Review

Ahmed Ibrahim Elsanabary; Georgios Konstantinou; Saad Mekhilef; Christopher David Townsend; Mehdi Seyedmahmoudian; Alex Stojcevski

doi:10.1109/ACCESS.2020.3044882

Medium Voltage Large-Scale Grid-Connected Photovoltaic Systems Using Cascaded H-Bridge and Modular Multilevel Converters: A Review

Ahmed Ibrahim Elsanabary, Georgios Konstantinou, Saad Mekhilef^*, Christopher David Townsend, Mehdi Seyedmahmoudian, Alex Stojcevski

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

129 Scopus citations

Abstract

Medium-voltage (MV) multilevel converters are considered a promising solution for large scale photovoltaic (PV) systems to meet the rapid energy demand. This article focuses on reviewing the different structures and the technical challenges of modular multilevel topologies and their submodule circuit design for PV applications. The unique structure of the converter's submodule provides modularity, independent control of maximum power point tracking (MPPT), galvanic isolation, etc. Different submodule circuits and MPPT methods to efficiently extract the PV power are reviewed. The integration of the multilevel converters to PV systems suffers unbalanced power generation during partial PV shading conditions. Several balancing strategies to solve this problem are presented and compared to give a better understanding of the balancing ranges and capabilities of each strategy. In addition, the paper discusses recent research advancements, and possible future directions of MV converters-based large-scale PV systems for grid integration.

Original language	English
Article number	9294009
Pages (from-to)	223686-223699
Number of pages	14
Journal	IEEE Access
Volume	8
DOIs	https://doi.org/10.1109/ACCESS.2020.3044882
State	Published - 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2013 IEEE.

Keywords

Multilevel converters
PV systems
balancing strategies
grid
modularity

ASJC Scopus subject areas

General Computer Science
General Materials Science
General Engineering

UN SDGs

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

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10.1109/ACCESS.2020.3044882

Cite this

@article{4a3bb63d642444b088d2716cdec59d0f,

title = "Medium Voltage Large-Scale Grid-Connected Photovoltaic Systems Using Cascaded H-Bridge and Modular Multilevel Converters: A Review",

abstract = "Medium-voltage (MV) multilevel converters are considered a promising solution for large scale photovoltaic (PV) systems to meet the rapid energy demand. This article focuses on reviewing the different structures and the technical challenges of modular multilevel topologies and their submodule circuit design for PV applications. The unique structure of the converter's submodule provides modularity, independent control of maximum power point tracking (MPPT), galvanic isolation, etc. Different submodule circuits and MPPT methods to efficiently extract the PV power are reviewed. The integration of the multilevel converters to PV systems suffers unbalanced power generation during partial PV shading conditions. Several balancing strategies to solve this problem are presented and compared to give a better understanding of the balancing ranges and capabilities of each strategy. In addition, the paper discusses recent research advancements, and possible future directions of MV converters-based large-scale PV systems for grid integration.",

keywords = "Multilevel converters, PV systems, balancing strategies, grid, modularity",

author = "Elsanabary, \{Ahmed Ibrahim\} and Georgios Konstantinou and Saad Mekhilef and Townsend, \{Christopher David\} and Mehdi Seyedmahmoudian and Alex Stojcevski",

note = "Publisher Copyright: {\textcopyright} 2013 IEEE.",

year = "2020",

doi = "10.1109/ACCESS.2020.3044882",

language = "English",

volume = "8",

pages = "223686--223699",

journal = "IEEE Access",

issn = "2169-3536",

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

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T2 - A Review

AU - Elsanabary, Ahmed Ibrahim

AU - Konstantinou, Georgios

AU - Mekhilef, Saad

AU - Townsend, Christopher David

AU - Seyedmahmoudian, Mehdi

AU - Stojcevski, Alex

PY - 2020

Y1 - 2020

N2 - Medium-voltage (MV) multilevel converters are considered a promising solution for large scale photovoltaic (PV) systems to meet the rapid energy demand. This article focuses on reviewing the different structures and the technical challenges of modular multilevel topologies and their submodule circuit design for PV applications. The unique structure of the converter's submodule provides modularity, independent control of maximum power point tracking (MPPT), galvanic isolation, etc. Different submodule circuits and MPPT methods to efficiently extract the PV power are reviewed. The integration of the multilevel converters to PV systems suffers unbalanced power generation during partial PV shading conditions. Several balancing strategies to solve this problem are presented and compared to give a better understanding of the balancing ranges and capabilities of each strategy. In addition, the paper discusses recent research advancements, and possible future directions of MV converters-based large-scale PV systems for grid integration.

AB - Medium-voltage (MV) multilevel converters are considered a promising solution for large scale photovoltaic (PV) systems to meet the rapid energy demand. This article focuses on reviewing the different structures and the technical challenges of modular multilevel topologies and their submodule circuit design for PV applications. The unique structure of the converter's submodule provides modularity, independent control of maximum power point tracking (MPPT), galvanic isolation, etc. Different submodule circuits and MPPT methods to efficiently extract the PV power are reviewed. The integration of the multilevel converters to PV systems suffers unbalanced power generation during partial PV shading conditions. Several balancing strategies to solve this problem are presented and compared to give a better understanding of the balancing ranges and capabilities of each strategy. In addition, the paper discusses recent research advancements, and possible future directions of MV converters-based large-scale PV systems for grid integration.

KW - Multilevel converters

KW - PV systems

KW - balancing strategies

KW - grid

KW - modularity

UR - https://www.scopus.com/pages/publications/85098246333

U2 - 10.1109/ACCESS.2020.3044882

DO - 10.1109/ACCESS.2020.3044882

M3 - Article

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SN - 2169-3536

VL - 8

SP - 223686

EP - 223699

JO - IEEE Access

JF - IEEE Access

M1 - 9294009

ER -

Medium Voltage Large-Scale Grid-Connected Photovoltaic Systems Using Cascaded H-Bridge and Modular Multilevel Converters: A Review

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

UN SDGs

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Cite this