@inproceedings{6242d1d929cf4531a1b5e4265ecfd546,
title = "A novel single-phase cascaded multilevel AC-AC converter without commutation problem",
abstract = "This paper presents a novel cascaded multilevel PWM ac-ac converter that can solve commutation problem. By cascading the single-phase PWM ac-ac converter that uses basic switching cell structure and coupled inductors, the proposed converter does not need to sense the voltage or current polarity for safe commutation. When many unit-cells are cascaded, the proposed converter has more output voltage levels and can obtain high ac output voltage by using low voltage rating switching devices. By applying phase-shifted PWM technique, the proposed converter can reduce output filter size significantly. A 2 kW prototype converter having four unit-cell structure is built and tested to verify the performance.",
author = "Sanghoon Kim and Kim, {Heung Geun} and Honnyong Cha",
note = "Publisher Copyright: {\textcopyright} 2014 IEEE.",
year = "2014",
month = nov,
day = "11",
doi = "10.1109/ECCE.2014.6953443",
language = "English",
series = "2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "556--562",
booktitle = "2014 IEEE Energy Conversion Congress and Exposition, ECCE 2014",
address = "United States",
}