Design and Performance Assessment of a Multilevel Inverter for Improved Standalone PV System Operation

International Journal of Electrical and Electronics Engineering

© 2023 by SSRG - IJEEE Journal

Volume 10 Issue 8

Year of Publication : 2023

Authors : Hemalatha Javvaji, Deepak Prakash Kadam, Y. Kamal Kishore, K. Sarada, M. Ramprasad Reddy, M. Lakshmikanth Reddy

10.14445/23488379/IJEEE-V10I8P107

How to Cite?

Hemalatha Javvaji, Deepak Prakash Kadam, Y. Kamal Kishore, K. Sarada, M. Ramprasad Reddy, M. Lakshmikanth Reddy, "Design and Performance Assessment of a Multilevel Inverter for Improved Standalone PV System Operation," SSRG International Journal of Electrical and Electronics Engineering, vol. 10,  no. 8, pp. 67-78, 2023. Crossref, https://doi.org/10.14445/23488379/IJEEE-V10I8P107

Abstract:

The design and performance assessment of a nine-level Multi-Level Inverter (MLI) for standalone Photovoltaic (PV) systems aim to increase the inverter’s efficiency and decrease the usage of power switches. Multilevel inverters synthesize a sinusoidal output waveform from multiple voltage levels, which results in lower Total Harmonic Distortion (THD) and higher power quality. The nine-level multilevel inverter incorporates a variety of Pulse Width Modulation (PWM) techniques in this configuration to control the output voltage. The inverter can efficiently regulate power flow from the PV system to the load by optimizing the PWM control methods, resulting in a stable and dependable energy supply. The inverter experiences lower conduction and switching losses with fewer switches, resulting in enhanced overall efficiency. Furthermore, simplified circuitry can result in lower production costs and increased reliability. The performance analysis must examine this multilevel inverter’s output voltage waveform, THD, efficiency, and power losses. It is possible to examine findings with the results of conventional inverters utilizing simulation modelling. The nine-level multilevel inverter can be an excellent option for standalone PV systems because it lowers THD and increases efficiency, enabling better system performance and greater use of renewable energy sources.

Keywords:

Number of power switches, Modified MLI, Phase disposition PWM, PV system, THD.

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