Feasibility Study of Inductor Coupling in Three-Level Neutral-Point-Clamped Quasi-Z-Source DC/AC Converter

The 9th International 2014 Electric Power Quality and Supply Reliability Conference (PQ2014): Proceedings 2014
Jānis Zaķis, Oleksandr Husev, Ryszard Strzelecki

This paper presents a comparative feasibility study of coupled inductor implementation in a three-level neutral-point-clamped quasi-Z-source (3L-NPC qZS) DC/AC converter. Our theoretical verification shows that coupling of the qZS inductors enables reductions in the size and weight of the magnetic components or in the input current ripple. Our mathematical analysis shows the difference of inductor currents at variable circuit parameters. Simulations results are provided to verify our theoretical assumptions.

Keywords
DC/AC converter, three-level inverter, coupled inductors, quasi-Z-Source
DOI
10.1109/PQ.2014.6866826
Hyperlink
http://ieeexplore.ieee.org/xpl/mostRecentIssue.jsp?punumber=6857933

Zaķis, J., Husev, O., Strzelecki, R. Feasibility Study of Inductor Coupling in Three-Level Neutral-Point-Clamped Quasi-Z-Source DC/AC Converter. In: The 9th International 2014 Electric Power Quality and Supply Reliability Conference (PQ2014): Proceedings, Estonia, Rakvere, 11-13 June, 2014. Piscataway: IEEE, 2014, pp.273-276. ISBN 978-1-4799-5020-1. Available from: doi:10.1109/PQ.2014.6866826

Publication language
English (en)