Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems

Mina Haghighat; Hossein Dehghani Tafti; Mehdi Gholipour; Mehdi Niroomand; Christopher D. Townsend; Nestor Vazquez Barajas; Gaowen Liang; Georgios Konstantinou; Josep Pou

doi:10.1109/ACCESS.2024.3496518

Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems

Mina Haghighat, Hossein Dehghani Tafti^*, Mehdi Gholipour, Mehdi Niroomand, Christopher D. Townsend, Nestor Vazquez Barajas, Gaowen Liang, Georgios Konstantinou, Josep Pou

^*Corresponding author for this work

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

Abstract

Grid-connected photovoltaic (PV) systems enhance grid stability during frequency fluctuations by adopting power reserve control (PRC) and contributing to frequency regulation. The cascaded H-bridge (CHB) converter is a suitable choice for large-scale photovoltaic systems. This paper introduces a distributed PRC strategy designed for CHB-based PV systems, necessitating minimal inter-module communication and thus simplifying implementation. Each submodule (SM) within the CHB converter periodically engages in maximum power point tracking to assess the system’s total accessible PV power. Through coordinated control, the strategy evenly allocates the necessary power across sub-modules based on their PV power availability, offering a balanced power distribution while acknowledging operational constraints on power disparity among SMs. Simulation and experimental results confirm the efficiency of the proposed approach under various conditions, showcasing accurate PV power estimation, seamless transition between operating modes, fast dynamic response, and regulation of the dc-link voltages.

Original language	English
Pages (from-to)	168568-168580
Number of pages	13
Journal	IEEE Access
Volume	12
DOIs	https://doi.org/10.1109/ACCESS.2024.3496518
Publication status	Published - 2024
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2013 IEEE.

ASJC Scopus Subject Areas

General Computer Science
General Materials Science
General Engineering

Keywords

Cascaded H-bridge converter
distributed control
flexible power point tracking
photovoltaic systems
power reserve control

UN SDGs

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

Access to Document

10.1109/ACCESS.2024.3496518

Cite this

@article{d7a957eec6174f6689d234eb6d6f2292,

title = "Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems",

abstract = "Grid-connected photovoltaic (PV) systems enhance grid stability during frequency fluctuations by adopting power reserve control (PRC) and contributing to frequency regulation. The cascaded H-bridge (CHB) converter is a suitable choice for large-scale photovoltaic systems. This paper introduces a distributed PRC strategy designed for CHB-based PV systems, necessitating minimal inter-module communication and thus simplifying implementation. Each submodule (SM) within the CHB converter periodically engages in maximum power point tracking to assess the system{\textquoteright}s total accessible PV power. Through coordinated control, the strategy evenly allocates the necessary power across sub-modules based on their PV power availability, offering a balanced power distribution while acknowledging operational constraints on power disparity among SMs. Simulation and experimental results confirm the efficiency of the proposed approach under various conditions, showcasing accurate PV power estimation, seamless transition between operating modes, fast dynamic response, and regulation of the dc-link voltages.",

keywords = "Cascaded H-bridge converter, distributed control, flexible power point tracking, photovoltaic systems, power reserve control",

author = "Mina Haghighat and Tafti, {Hossein Dehghani} and Mehdi Gholipour and Mehdi Niroomand and Townsend, {Christopher D.} and Barajas, {Nestor Vazquez} and Gaowen Liang and Georgios Konstantinou and Josep Pou",

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

year = "2024",

doi = "10.1109/ACCESS.2024.3496518",

language = "English",

volume = "12",

pages = "168568--168580",

journal = "IEEE Access",

issn = "2169-3536",

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

}

TY - JOUR

T1 - Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems

AU - Haghighat, Mina

AU - Tafti, Hossein Dehghani

AU - Gholipour, Mehdi

AU - Niroomand, Mehdi

AU - Townsend, Christopher D.

AU - Barajas, Nestor Vazquez

AU - Liang, Gaowen

AU - Konstantinou, Georgios

AU - Pou, Josep

PY - 2024

Y1 - 2024

N2 - Grid-connected photovoltaic (PV) systems enhance grid stability during frequency fluctuations by adopting power reserve control (PRC) and contributing to frequency regulation. The cascaded H-bridge (CHB) converter is a suitable choice for large-scale photovoltaic systems. This paper introduces a distributed PRC strategy designed for CHB-based PV systems, necessitating minimal inter-module communication and thus simplifying implementation. Each submodule (SM) within the CHB converter periodically engages in maximum power point tracking to assess the system’s total accessible PV power. Through coordinated control, the strategy evenly allocates the necessary power across sub-modules based on their PV power availability, offering a balanced power distribution while acknowledging operational constraints on power disparity among SMs. Simulation and experimental results confirm the efficiency of the proposed approach under various conditions, showcasing accurate PV power estimation, seamless transition between operating modes, fast dynamic response, and regulation of the dc-link voltages.

AB - Grid-connected photovoltaic (PV) systems enhance grid stability during frequency fluctuations by adopting power reserve control (PRC) and contributing to frequency regulation. The cascaded H-bridge (CHB) converter is a suitable choice for large-scale photovoltaic systems. This paper introduces a distributed PRC strategy designed for CHB-based PV systems, necessitating minimal inter-module communication and thus simplifying implementation. Each submodule (SM) within the CHB converter periodically engages in maximum power point tracking to assess the system’s total accessible PV power. Through coordinated control, the strategy evenly allocates the necessary power across sub-modules based on their PV power availability, offering a balanced power distribution while acknowledging operational constraints on power disparity among SMs. Simulation and experimental results confirm the efficiency of the proposed approach under various conditions, showcasing accurate PV power estimation, seamless transition between operating modes, fast dynamic response, and regulation of the dc-link voltages.

KW - Cascaded H-bridge converter

KW - distributed control

KW - flexible power point tracking

KW - photovoltaic systems

KW - power reserve control

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JO - IEEE Access

JF - IEEE Access

ER -

Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

Access to Document

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New Engineering Findings from University of Isfahan Published (Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems)

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Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems

Abstract

Bibliographical note

ASJC Scopus Subject Areas

Keywords

UN SDGs

Access to Document

Other files and links

Fingerprint

Press/Media

New Engineering Findings from University of Isfahan Published (Distributed Power Reserve Control in Grid-Connected Cascaded H-Bridge Converter-Based Photovoltaic Systems)

Cite this