Power losses analysis for reduced switch 9-level cascaded Hbridge multilevel inverter

Mat Isa, Zainuddin and Ismail, Mohammad Haziq and Arshad, Mohd Hafiz and Che Mid, Ernie and Ismail, Baharuddin and Talib, Md Hairul Nizam (2024) Power losses analysis for reduced switch 9-level cascaded Hbridge multilevel inverter. International Journal of Applied Power Engineering, 13 (4). pp. 808-814. ISSN 2252-8792

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Abstract

This study provides a thorough examination of power losses and total harmonic distortion (THD) in single-phase 9-level cascaded H-bridge multilevel inverters (CHB MLI) at low switching frequencies. The aim is to analyze the efficiency of a single-phase 9-level cascaded CHB MLI using three distinct switch configurations: 16-switch, 11-switch, and proposed 8- switch. The calculated switching angles are optimized using the feedforward methodology. Two types of load conditions—R load and R-L load—are being examined. The results suggest that the proposed 8-switch design exhibits superior efficiency by limiting power losses compared to other topologies. Regarding THD, the conventional topology yields a somewhat lower value, however, the disparity is less than 1% when compared to both reduced switch topologies.

Item Type:	Article
Uncontrolled Keywords:	Cascaded H-bridge, Multilevel inverter, Power losses analysis, Reduced switch, Total harmonic distortion
Divisions:	Faculty of Electrical Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	10 Feb 2025 16:25
Last Modified:	10 Feb 2025 16:25
URI:	http://eprints.utem.edu.my/id/eprint/28405
Statistic Details:	View Download Statistic

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