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Abstract
Z-source neutral-point-clamped (NPC) inverters are earlier proposed for obtaining voltage buck-boost and three-level switching simultaneously. Their performances are, however, constrained by a trade-off between their input-to-output gain and modulation ratio. This trade-off can lead to high-voltage stress across the inverter bridge and poor output voltage spectrum. As alternatives with improved performances, two transformer-based Z-source NPC inverters are proposed, whose gain can be adjusted by varying the transformer turns ratio, and is hence less dependent on the inverter modulation ratio. Limitations faced by the earlier Z-source NPC inverters are therefore avoided by the proposed inverters, as demonstrated through experiments.
Originalsprog | Engelsk |
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Tidsskrift | IET Power Electronics |
Vol/bind | 8 |
Udgave nummer | 3 |
Sider (fra-til) | 371 - 377 |
Antal sider | 7 |
ISSN | 1755-4535 |
DOI | |
Status | Udgivet - mar. 2015 |
Fingeraftryk
Dyk ned i forskningsemnerne om 'Trans-Z-source and Γ-Z-source neutral-point-clamped inverters'. Sammen danner de et unikt fingeraftryk.Projekter
- 1 Afsluttet
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IEPE: Intelligent and Efficient Power Electronics (IEPE)
The Danish National Advanced Technology Foundation
01/04/2012 → 31/03/2017
Projekter: Projekt › Forskning