Open AccessElectromagnetic compatibility of voltage source inverters for uninterruptible power supply system depending on the pulse‐width modulation scheme
Author(s) -
Bernacki Krzysztof,
Rymarski Zbigniew
Publication year - 2015
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2014.0637
Subject(s) - uninterruptible power supply , pulse width modulation , electrical engineering , voltage , compatibility (geochemistry) , voltage source , modulation (music) , electronic engineering , materials science , engineering , physics , acoustics , composite material
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.