Asymmetrical Multilevel Inverter-Based PV System with Voltage Feedback Control: An Experimental Validation

Muhammad Najwan Hamidi; Arjuna Marzuki; Dahaman Ishak; Mohamed Salem; Mohd Hezri Marzaki; Ikechi Augustine Ukaegbu

doi:10.3390/app12073581

Asymmetrical Multilevel Inverter-Based PV System with Voltage Feedback Control: An Experimental Validation

Muhammad Najwan Hamidi, Arjuna Marzuki, Dahaman Ishak, Mohamed Salem, Mohd Hezri Marzaki, Ikechi Augustine Ukaegbu

Nazarbayev University

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

3 Citations (Scopus)

Abstract

This paper presents an experimental evaluation and validation of a standalone photovoltaic (PV) renewable energy system using a perturb and observe MPPT-based voltage controller (POVC) for application on the reduced component multilevel inverter (MLI). The objective is to verify the effectiveness of POVC and asymmetrical MLI for real PV interconnection applications, which has never been reported before. An asymmetrical 17-level MLI topology is selected in this research. It requires four isolated DC sources to operate. A boost converter is deployed as one of the inputs while isolated DC power supplies power to the others. POVC is implemented at the boost converter to control the DC voltage from the PV panel. From the experimental results, the capability of the POVC to produce constant voltage levels under varying conditions is proven. It is also capable of delivering maximum power under maximum load. The full system is tested using different load types, including nonlinear loads. The MLI produces expected outputs under all operating conditions with efficiencies above 97%. The viability of the proposed PV system is firstly analysed through MATLAB/Simulink simulations. The results are then evaluated experimentally.

Original language	English
Article number	3581
Journal	Applied Sciences (Switzerland)
Volume	12
Issue number	7
DOIs	https://doi.org/10.3390/app12073581
Publication status	Published - Apr 1 2022

Keywords

asymmetric
multilevel inverter
PV system
voltage feedback control

ASJC Scopus subject areas

General Materials Science
Instrumentation
General Engineering
Process Chemistry and Technology
Computer Science Applications
Fluid Flow and Transfer Processes

UN SDGs

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

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10.3390/app12073581

Cite this

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title = "Asymmetrical Multilevel Inverter-Based PV System with Voltage Feedback Control: An Experimental Validation",

abstract = "This paper presents an experimental evaluation and validation of a standalone photovoltaic (PV) renewable energy system using a perturb and observe MPPT-based voltage controller (POVC) for application on the reduced component multilevel inverter (MLI). The objective is to verify the effectiveness of POVC and asymmetrical MLI for real PV interconnection applications, which has never been reported before. An asymmetrical 17-level MLI topology is selected in this research. It requires four isolated DC sources to operate. A boost converter is deployed as one of the inputs while isolated DC power supplies power to the others. POVC is implemented at the boost converter to control the DC voltage from the PV panel. From the experimental results, the capability of the POVC to produce constant voltage levels under varying conditions is proven. It is also capable of delivering maximum power under maximum load. The full system is tested using different load types, including nonlinear loads. The MLI produces expected outputs under all operating conditions with efficiencies above 97%. The viability of the proposed PV system is firstly analysed through MATLAB/Simulink simulations. The results are then evaluated experimentally.",

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AU - Hamidi, Muhammad Najwan

AU - Marzuki, Arjuna

AU - Ishak, Dahaman

AU - Salem, Mohamed

AU - Marzaki, Mohd Hezri

AU - Ukaegbu, Ikechi Augustine

N1 - Funding Information: Funding: This research was funded by Ministry of Higher Education Malaysia under grant number FRGS/1/2021/TK0/USM/02/31. And the APC was funded by Wawasan Open University. Publisher Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland.

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N2 - This paper presents an experimental evaluation and validation of a standalone photovoltaic (PV) renewable energy system using a perturb and observe MPPT-based voltage controller (POVC) for application on the reduced component multilevel inverter (MLI). The objective is to verify the effectiveness of POVC and asymmetrical MLI for real PV interconnection applications, which has never been reported before. An asymmetrical 17-level MLI topology is selected in this research. It requires four isolated DC sources to operate. A boost converter is deployed as one of the inputs while isolated DC power supplies power to the others. POVC is implemented at the boost converter to control the DC voltage from the PV panel. From the experimental results, the capability of the POVC to produce constant voltage levels under varying conditions is proven. It is also capable of delivering maximum power under maximum load. The full system is tested using different load types, including nonlinear loads. The MLI produces expected outputs under all operating conditions with efficiencies above 97%. The viability of the proposed PV system is firstly analysed through MATLAB/Simulink simulations. The results are then evaluated experimentally.

AB - This paper presents an experimental evaluation and validation of a standalone photovoltaic (PV) renewable energy system using a perturb and observe MPPT-based voltage controller (POVC) for application on the reduced component multilevel inverter (MLI). The objective is to verify the effectiveness of POVC and asymmetrical MLI for real PV interconnection applications, which has never been reported before. An asymmetrical 17-level MLI topology is selected in this research. It requires four isolated DC sources to operate. A boost converter is deployed as one of the inputs while isolated DC power supplies power to the others. POVC is implemented at the boost converter to control the DC voltage from the PV panel. From the experimental results, the capability of the POVC to produce constant voltage levels under varying conditions is proven. It is also capable of delivering maximum power under maximum load. The full system is tested using different load types, including nonlinear loads. The MLI produces expected outputs under all operating conditions with efficiencies above 97%. The viability of the proposed PV system is firstly analysed through MATLAB/Simulink simulations. The results are then evaluated experimentally.

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Asymmetrical Multilevel Inverter-Based PV System with Voltage Feedback Control: An Experimental Validation

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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