A Survey of Multilevel Inverters
P Veera Bhadra Kumari

P Veera Bhadra Kumari, Department of Electrical and Electronics Engineering, Mahatma Gandhi Institute of Technology, Hyderabad, India.
Manuscript received on October 06, 2015. | Revised Manuscript received on October 09, 2015. | Manuscript published on October 25, 2015. | PP: 16-28 | Volume-3 Issue-12, October 2015. | Retrieval Number: L10371031215
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Multilevel inverter technology has become important over the years in the area of high power medium voltage energy control. This paper presents information about several multilevel inverter topologies, such as the Neutral-Point Clamped Inverter and the Cascaded Multicell Inverter. This paper also presents the most relevant control and modulation methods developed for this family of converters: multilevel sinusoidal pulsewidth modulation, multilevel selective harmonic elimination and space vector modulation. Finally, developing areas such as electric vehicle propulsion converters and electric power grid system and other opportunities for future developments are addressed.
Keywords: Multilevel inverter, topologies, modulation, comparison.