A novel control topology for grid-integration with modular multilevel inverter
Document Type
Journal Article
Publication Title
International Transactions on Electrical Energy Systems
Volume
31
Issue
12
Publisher
Wiley
School
School of Engineering
RAS ID
42634
Abstract
This paper presents a novel control topology for a multilevel inverter with reduced number of power switches for achieving an increased number of levels in output voltage along with improved power quality. The diode clamped multilevel inverter configuration is modified and the gating signals are generated using selective harmonic optimization technique at fundamental frequency using Satin Bower Bird optimization (SBO). It enhances the quality of output voltage waveform with the reduction in total harmonic distortion (THD), less switching power losses, and better efficiency. The inverter is investigated for its competent operation capability on grid-tied applications. Detailed simulation is conducted and results are presented for various load conditions. To validate the inverter operation, an experimental setup of the modified diode clamped modular inverter (MDCMI) interfacing the grid is presented. The loss analysis is carried out at the inverter and converter segments. Based on the analysis, the proposed control topology demonstrates the reliable and efficient operation of the modular inverter. From the results obtained it is evident that the proposed inverter design suits superlative for the grid applications.
DOI
10.1002/2050-7038.13135
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Comments
Shunmugham Vanaja, D., Stonier, A. A., & Moghassemi, A. (2021). A novel control topology for grid‐integration with modular multilevel inverter. International Transactions on Electrical Energy Systems, 31(12), article e13135.
https://doi.org/10.1002/2050-7038.13135