Feasibility study of inductor coupling in three-level neutral-point-clamped quasi-Z-source DC/AC converter

Author

Zakis, Janis ; Husev, Oleksandr ; Strzelecki, Ryszard

Author_Institution

Inst. of Ind. Electron. & Electr. Eng., Riga Tech. Univ., Riga, Latvia

fYear

2014

fDate

11-13 June 2014

Firstpage

273

Lastpage

276

Abstract

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 power convertors; invertors; power inductors; 3L-NPC qZS DC/AC converter; inductor coupling; input current ripple; magnetic components; mathematical analysis; qZS inductors; quasi-Z-source DC/AC converter; three-level neutral-point-clamped converter; variable circuit parameters; Couplings; Educational institutions; Harmonic analysis; Inductance; Inductors; Inverters; DC/AC converter; coupled inductors; quasi-Z-Source; three-level inverter;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Power Quality and Supply Reliability Conference (PQ), 2014

Conference_Location

Rakvere

Print_ISBN

978-1-4799-5020-1

Type

conf

DOI

10.1109/PQ.2014.6866826

Filename

6866826