Electromagnetic compatibility of voltage source inverters for uninterruptible power supply system depending on the pulse-width modulation scheme-Krzysztof Bernacki, Zbigniew Rymarski ✉ Institute of Electronics, Faculty of Automatic Control and Computer Science of the Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland

 IET Power Electronics Research Article Electromagnetic compatibility of voltage source inverters for uninterruptible power supply system depending on the pulse-width modulation scheme ISSN 1755-4535 Received on 22nd August 2014 Accepted on 6th January 2015 doi: 10.1049/iet-pel.2014.0637 www.ietdl.org Krzysztof Bernacki, Zbigniew Rymarski ✉ Institute of Electronics, Faculty of Automatic Control and Computer Science of the Silesian University of Technology, Akademicka 16, 44-100 Gliwice, Poland ✉ E-mail: zbigniew.rymarski@polsl.pl 

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. 

VIEW FULL TEXT:

https://ietresearch.onlinelibrary.wiley.com/doi/epdf/10.1049/iet-pel.2014.0637