Electromagnetic compatibility of voltage source inverters for uninterruptible power supply system depending on the pulse-width modulation scheme

Author

Bernacki, Krzysztof ; Rymarski, Zbigniew

Author_Institution

Fac. of Autom. Control & Comput. Sci., Silesian Univ. of Technol., Gliwice, Poland

Volume

8

Issue

6

fYear

2015

fDate

6 2015

Firstpage

1026

Lastpage

1034

Abstract

The pulse-width modulation (PWM) scheme is an algorithm for inverter switch control. A two-leg bridge and three-level PWM are typical solutions in voltage source inverters in uninterruptible power supply systems. The three PWM schemes that are used in inverters are compared herein. Each scheme has different features, including the level of noise generated and interference in the different frequency ranges. The aim of this study is to analyse the characteristics and electromagnetic interference that is generated by an inverter using different PWM schemes.

Keywords

PWM invertors; bridge circuits; electromagnetic compatibility; interference suppression; machine control; switches; uninterruptible power supplies; electromagnetic compatibility; electromagnetic interference; inverter switch control; noise generation; pulse width modulation scheme; three level PWM scheme; two-leg bridge; uninterruptible power supply system; voltage source inverter;

fLanguage

English

Journal_Title

Power Electronics, IET

Publisher

iet

ISSN

1755-4535

Type

jour

DOI

10.1049/iet-pel.2014.0637

Filename

7115349