Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output

Muhammad Talha; Siti Rohani Sheikh Raihan; Nasrudin Abd Rahim; Muhammad Naveed Akhtar; Osama M. Butt; Muhammad Majid Hussain

doi:10.1109/ACCESS.2022.3158983

Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output

Muhammad Talha, Siti Rohani Sheikh Raihan, Nasrudin Abd Rahim, Muhammad Naveed Akhtar, Osama M. Butt, Muhammad Majid Hussain

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

113 Downloads (Pure)

Abstract

Renewable photovoltaic (PV) energy is a primary contributor to sustainable power generationin microgrids. However, PV grid-tied generators remain functional as long as the grid voltage and the inputPV source remain normal. Abnormal conditions like transient grid sags or solar irradiation flickering canmake the grid-tied inverter go offline. Simultaneous shut down of PV generators residing in the distributiongrid may lead to an overall grid instability or outage. Therefore, PV generators must be equipped with fault-ride-through mechanisms in order to remain connected and operational during faults. This paper presentsa PV-inverter with low-voltage-ride-through (LVRT) and low-irradiation (LR) compensation to avoid gridflickers. The single-phase inverter rides through the voltage sags while injecting reactive power into the grid.The proposed control strategy ensures a steady DC-link voltage and remains connected to the grid duringAC-side low voltage and DC-side low-irradiation faults. Unlike other PV inverters, the controller maintainsthe maximum-power-point-tracking (MPPT) in all conditions. LVRT, constant power output, and robustMPPT are the noticeable features of the proposed system. Frequency analysis, simulations, and a laboratoryprototype validate the proposed control strategy.

Original language	English
Pages (from-to)	29567-29588
Number of pages	22
Journal	IEEE Access
Volume	10
DOIs	https://doi.org/10.1109/ACCESS.2022.3158983
Publication status	Published - 14 Mar 2022

Keywords

microgrid
PV inverter
LVRT
Constant power output
MPPT

UN SDGs

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

Access to Document

10.1109/ACCESS.2022.3158983Licence: CC BY

Version of Record with a CC BY LicenceFinal published version, 3.05 MBLicence: CC BY

Cite this

@article{11db168ac5dd44f98b7dfd4bc3bb8155,

title = "Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output",

abstract = "Renewable photovoltaic (PV) energy is a primary contributor to sustainable power generationin microgrids. However, PV grid-tied generators remain functional as long as the grid voltage and the inputPV source remain normal. Abnormal conditions like transient grid sags or solar irradiation flickering canmake the grid-tied inverter go offline. Simultaneous shut down of PV generators residing in the distributiongrid may lead to an overall grid instability or outage. Therefore, PV generators must be equipped with fault-ride-through mechanisms in order to remain connected and operational during faults. This paper presentsa PV-inverter with low-voltage-ride-through (LVRT) and low-irradiation (LR) compensation to avoid gridflickers. The single-phase inverter rides through the voltage sags while injecting reactive power into the grid.The proposed control strategy ensures a steady DC-link voltage and remains connected to the grid duringAC-side low voltage and DC-side low-irradiation faults. Unlike other PV inverters, the controller maintainsthe maximum-power-point-tracking (MPPT) in all conditions. LVRT, constant power output, and robustMPPT are the noticeable features of the proposed system. Frequency analysis, simulations, and a laboratoryprototype validate the proposed control strategy. ",

keywords = "microgrid, PV inverter, LVRT, Constant power output, MPPT",

author = "Muhammad Talha and Raihan, {Siti Rohani Sheikh} and {Abd Rahim}, Nasrudin and Akhtar, {Muhammad Naveed} and Butt, {Osama M.} and Hussain, {Muhammad Majid}",

note = "Funding Information: This work was supported in part by the UM Power Energy Dedicated Advanced Center (UMPEDAC), and the Fundamental Research Grant Scheme (FRGS) by the Ministry of Higher Education Malaysia under Grant FP034-2020. Publisher Copyright: Author",

year = "2022",

month = mar,

day = "14",

doi = "10.1109/ACCESS.2022.3158983",

language = "English",

volume = "10",

pages = "29567--29588",

journal = "IEEE Access",

issn = "2169-3536",

publisher = "Institute of Electrical and Electronics Engineers",

}

TY - JOUR

T1 - Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output

AU - Talha, Muhammad

AU - Raihan, Siti Rohani Sheikh

AU - Abd Rahim, Nasrudin

AU - Akhtar, Muhammad Naveed

AU - Butt, Osama M.

AU - Hussain, Muhammad Majid

N1 - Funding Information: This work was supported in part by the UM Power Energy Dedicated Advanced Center (UMPEDAC), and the Fundamental Research Grant Scheme (FRGS) by the Ministry of Higher Education Malaysia under Grant FP034-2020. Publisher Copyright: Author

PY - 2022/3/14

Y1 - 2022/3/14

N2 - Renewable photovoltaic (PV) energy is a primary contributor to sustainable power generationin microgrids. However, PV grid-tied generators remain functional as long as the grid voltage and the inputPV source remain normal. Abnormal conditions like transient grid sags or solar irradiation flickering canmake the grid-tied inverter go offline. Simultaneous shut down of PV generators residing in the distributiongrid may lead to an overall grid instability or outage. Therefore, PV generators must be equipped with fault-ride-through mechanisms in order to remain connected and operational during faults. This paper presentsa PV-inverter with low-voltage-ride-through (LVRT) and low-irradiation (LR) compensation to avoid gridflickers. The single-phase inverter rides through the voltage sags while injecting reactive power into the grid.The proposed control strategy ensures a steady DC-link voltage and remains connected to the grid duringAC-side low voltage and DC-side low-irradiation faults. Unlike other PV inverters, the controller maintainsthe maximum-power-point-tracking (MPPT) in all conditions. LVRT, constant power output, and robustMPPT are the noticeable features of the proposed system. Frequency analysis, simulations, and a laboratoryprototype validate the proposed control strategy.

AB - Renewable photovoltaic (PV) energy is a primary contributor to sustainable power generationin microgrids. However, PV grid-tied generators remain functional as long as the grid voltage and the inputPV source remain normal. Abnormal conditions like transient grid sags or solar irradiation flickering canmake the grid-tied inverter go offline. Simultaneous shut down of PV generators residing in the distributiongrid may lead to an overall grid instability or outage. Therefore, PV generators must be equipped with fault-ride-through mechanisms in order to remain connected and operational during faults. This paper presentsa PV-inverter with low-voltage-ride-through (LVRT) and low-irradiation (LR) compensation to avoid gridflickers. The single-phase inverter rides through the voltage sags while injecting reactive power into the grid.The proposed control strategy ensures a steady DC-link voltage and remains connected to the grid duringAC-side low voltage and DC-side low-irradiation faults. Unlike other PV inverters, the controller maintainsthe maximum-power-point-tracking (MPPT) in all conditions. LVRT, constant power output, and robustMPPT are the noticeable features of the proposed system. Frequency analysis, simulations, and a laboratoryprototype validate the proposed control strategy.

KW - microgrid

KW - PV inverter

KW - LVRT

KW - Constant power output

KW - MPPT

U2 - 10.1109/ACCESS.2022.3158983

DO - 10.1109/ACCESS.2022.3158983

M3 - Article

SN - 2169-3536

VL - 10

SP - 29567

EP - 29588

JO - IEEE Access

JF - IEEE Access

ER -

Multi-Functional PV Inverter With Low Voltage Ride-Through and Constant Power Output

Abstract

Keywords

UN SDGs

Access to Document

Fingerprint

Cite this