Power losses analysis for reduced switch 9-level cascaded Hbridge multilevel inverter
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 s...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Intelektual Pustaka Media Utama
2024
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| Online Access: | http://eprints.utem.edu.my/id/eprint/28405/2/00337271220241158141487.pdf http://eprints.utem.edu.my/id/eprint/28405/ https://ijape.iaescore.com/index.php/IJAPE/article/view/20991 http://doi.org/10.11591/ijape.v13.i4.pp808-814 |
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| Summary: | 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. |
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