JIC_V5_N2_RP3 Comparative Study of Different Topologies of a Five Level Inverter R. Sheba Rani C. Srinivasa Rao Vijaya Kumar Journal on Instrumentation & Control Engineering 2321 – 1148 5 2 18 25 Cascaded H-Bridge Multilevel Inverter (CHB-MLI), Common Mode (CM) Voltage, Electro Magnetic Compatibility (EMC), Flying-Capacitor Multilevel Inverter (FCMLI), Half- Bridge Inverter, Switch Mode DC-to-AC Inverter, Neutral Point Diode-Clamped Multilevel Inverter (NPDCMLI), Pulse Width Modulation(PWM), Voltage Source Inverter (VSI) Multilevel inverters are popular in high voltage applications and have become an important concept of research. The design and operation of these inverters are getting simpler and attaining improvement due to the advances in power semi conductor devices and modulation techniques. Multilevel inverters are known for their ability to produce a synthesized AC output voltage with negligible harmonic distortion. This paper compares three different topologies on Multilevel inverters- Neural Point- Diode Clamped Multilevel Inverter, Flying Capacitor Multilevel Inverter, and Cascaded H-Bridge Multilevel Inverter. The performances of inverters are compared in terms of number of IGBT switches, capacitors, diodes, DC voltage sources required for each configuration and harmonic distortion in output voltage. All the inverters are designed and simulated on MATLAB / SIMULINK platform and the results are presented. February - April 2017 Copyright © 2017 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13499