Comparative evaluation of three single-phase NPC inverters

Author

Neto, Joao Aberides Ferreira ; Bascope, R.P.T. ; Cruz, C.M. ; Cacau, R.G.A. ; Bascope, G.V.T.

Author_Institution

Electr. Eng. Dept.-DEE, Fed. Univ. of Ceara-UFC, Fortaleza, Brazil

fYear

2012

fDate

5-7 Nov. 2012

Firstpage

1

Lastpage

8

Abstract

In this paper is presented a comparative evaluation in steady-state of three single-phase NPC multilevel inverters. The first is a five-level neutral point clamped (NPC) inverter based on multi-stage switching cell (MSSC); the second is also a five-level neutral point clamped (NPC) inverter based on interleaved cell (IC); and the third is a three-level neutral point clamped (NPC) inverter based on paralleled cell (PC). For this comparative purpose, the switching frequency is constant and the evaluated parameters are the volume of the heatsinks and the passive components, the total harmonic distortion (THD) of the output voltage, the power density and efficiency of each topology. Theoretical analyses, as well as simulation and experimental results obtained from 5kW prototype are presented.

Keywords

harmonic distortion; heat sinks; invertors; IC; MSSC; PC; THD; five-level neutral point clamped inverter; heat sinks; interleaved cell; multistage switching cell; paralleled cell; passive components; power 5 kW; power density; switching frequency; three single-phase NPC multilevel inverter evaluation; three-level neutral point clamped inverter; total harmonic distortion; Heat sinks; Inductors; Inverters; Magnetic separation; Switching frequency; Topology; Windings;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications (INDUSCON), 2012 10th IEEE/IAS International Conference on

Conference_Location

Fortaleza

Print_ISBN

978-1-4673-2412-0

Type

conf

DOI

10.1109/INDUSCON.2012.6453691

Filename

6453691