High boost transformer-based Z-source inverter under continuous input current profile

A new scheme for high boost trans-z-source inverter with continuous input current is proposed. Because of the high boosting capability of the proposed inverter, the modulation index will be higher with lower shoot-through duty ratio. Higher modulation index will lead to improved total harmonic disto...

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Bibliographic Details
Published in:IET power electronics 2019-11, Vol.12 (14), p.3716-3723
Main Authors: Kojabadi, Hossein Madadi, Ebrahimi, Reza, Esmaeilifard, Hossein, Chang, Liuchen, Chen, Zhe, Blaabjerg, Frede
Format: Article
Language:English
Subjects:
continuous input current profile
harmonic distortion
high boost transformer‐based Z‐source inverter
high boost trans‐z‐source inverter
high boosting capability
higher modulation index
improved total harmonic distortion
inductors
invertors
output voltage
Research Article
shoot‐through duty ratio
transformers
trans‐z‐source topologies
voltage boost factor
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Summary:A new scheme for high boost trans-z-source inverter with continuous input current is proposed. Because of the high boosting capability of the proposed inverter, the modulation index will be higher with lower shoot-through duty ratio. Higher modulation index will lead to improved total harmonic distortion of the output voltage. This topology has one inductor, three diodes, two transformers, and three capacitors. Comparison between the new schemes with the previously proposed trans-z-source topologies is made based on the voltage stresses on capacitors, efficiency, and voltage boost factor. To verify the effectiveness and validity of the new inverter, experimental and simulation results are provided.
ISSN:1755-4535
1755-4543
1755-4543
DOI:10.1049/iet-pel.2019.0366