Implementation of a Seven Level Multilevel Inverter
Volume: 2 - Issue: 10 - Date: 01-10-2013
Approved ISSN: 2278-1412
Published Id: IJAECESTU216 | Page No.: 265-270
Author: Shadma khan
Co- Author: Monika jain
Abstract:-Power-electronic inverters are becoming popular for various industrial drives
applications. In recent years also high-power and medium-voltage drive applications have been
installed. Performance of multilevel inverter is superior to that of two level inverters due to
reduced harmonic distortion and reduced electromagnetic interference. But it has some
disadvantages also such as increased number of components and voltage balancing. This paper
describes the general multilevel inverter schematic. Seven level multilevel inverters consist of ten
IGBT Switches and three carriers. The multilevel converter works only in positive polarity and
does not generate negative polarities. In this paper we are measuring output voltage and Total
Harmonic Distortion (THD).A general method of multilevel modulation phase disposition (PD)
SPWM is utilized to drive the inverter and can be extended to any number of voltage levels.
Key Words:-SPWM, multilevel inverter, harmonic elimination
Area:-Engineering
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