Performance Analysis of an Optimized Asymmetric Multilevel Inverter on Grid Connected SPV System

Devineni Gireesh Kumar; Aman Ganesh; Nagineni Venkata Sireesha; Sainadh Singh Kshatri; Sachin Mishra; Naveen Kumar Sharma; Mohit Bajaj; Hossam Kotb; Ahmad H. Milyani; Abdullah Ahmed Azhari

doi:10.3390/en15207665

Energies (Oct 2022)

Performance Analysis of an Optimized Asymmetric Multilevel Inverter on Grid Connected SPV System

Devineni Gireesh Kumar,
Aman Ganesh,
Nagineni Venkata Sireesha,
Sainadh Singh Kshatri,
Sachin Mishra,
Naveen Kumar Sharma,
Mohit Bajaj,
Hossam Kotb,
Ahmad H. Milyani,
Abdullah Ahmed Azhari

Affiliations

Devineni Gireesh Kumar: Department of Electrical & Electronics Engineering, B V Raju Institute of Technology, Narsapur 502313, India
Aman Ganesh: Department of Electrical Engineering, Maharishi Markandeshwar Engineering College, Maharishi Markandeshwar (Deemed to Be University), Mullana, Ambala 133203, India
Nagineni Venkata Sireesha: Department of Information Technology, Institute of Aeronautical Engineering, Hyderabad 500043, India
Sainadh Singh Kshatri: Department of Electrical & Electronics Engineering, B V Raju Institute of Technology, Narsapur 502313, India
Sachin Mishra: School of Electronics and Electrical Engineering, Lovely Professional University, Phagwara 144411, India
Naveen Kumar Sharma: Department of Electrical Engineering, I. K. Gujral Punjab Technical University, Jalandhar 144603, India
Mohit Bajaj: Department of Electrical Engineering, Graphic Era (Deemed to Be University), Dehradun 248002, India
Hossam Kotb: Department of Electrical Power and Machines, Faculty of Engineering, Alexandria University, Alexandria 21544, Egypt
Ahmad H. Milyani: Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah 21589, Saudi Arabia
Abdullah Ahmed Azhari: The Applied College, King Abdulaziz University, Jeddah 21589, Saudi Arabia

DOI: https://doi.org/10.3390/en15207665
Journal volume & issue: Vol. 15, no. 20
p. 7665

Abstract

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The purpose of this research is to develop an efficient single-phase grid-connected PV system using a better performing asymmetrical multilevel inverter (AMI). Circuit component reduction, harmonic reduction, and grid integration are critical criteria for better inverter efficiency. The proposed inverter’s optimized topology requires seven unidirectional switches, three symmetric dc sources, and three diodes to produce an asymmetric fifteen level output; whereas, the same configuration will generate 7, 11, and 15-level output with an appropriate choice of dc source magnitudes. It is possible to reduce inverter losses and boost efficiency by decreasing the number of switches used. The integration of an asymmetric 15-level inverter with a grid-connected solar photovoltaic system is discussed in this article. A grid-connected solar photovoltaic (GCSPV) system is modelled and simulated using an asymmetric 15-level inverter. The dc sources of the 15-level inverter are replaced with PV sources. The results were analyzed with different operating temperatures and solar irradiance conditions. The GCSPV system is controlled by a closed-loop control system using Particle Swarm Optimization (PSO), Harris Hawk Optimization (HHO), and Hybrid Particle Swarm Optimization-Genetic Algorithm (PSOGA) based Proportional plus Integral (PI) controllers. Grid voltage, grid current, grid power, and total harmonic distortion (THD) of grid currents were analyzed. The performance of the 15-level asymmetric inverter was evaluated by comparing the THD of the grid current and the efficiency of the grid-connected photovoltaic system.

Published in Energies

ISSN: 1996-1073 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology
Website: http://www.mdpi.com/journal/energies

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