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

Year: 2024

Type: article

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 feed-forward 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.

Source: International Journal of Applied Power Engineering (IJAPE)

DOI: 10.11591/ijape.v13.i4.pp808-814

Authors: Mohammad Haziq Ismail, Zainuddin Mat Isa, Mohd Hafiz Arshad, Ernie Che Mid, Baharuddin Ismail, Md Hairul Nizam Talib

Institutions: Universiti Malaysia Perlis, Universiti Teknikal Malaysia Melaka

Language: English

Topic: Multilevel Inverters and Converters

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Industry, innovation and infrastructure

Open Access status: diamond

OpenAlex ID: W4403209994

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