Title :
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
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;
Conference_Titel :
Electric Power Quality and Supply Reliability Conference (PQ), 2014
Conference_Location :
Rakvere
Print_ISBN :
978-1-4799-5020-1
DOI :
10.1109/PQ.2014.6866826
