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Multilevel Inverters : Comparison of Various Topologies and its Simulation

Authors(4) :-Mithilesh Shivankar, Komal Deshmukh, Akshay Sahu, Abhijit Dutta

The multilevel inverters have drawn a tremendous interest in power industry now a day for high power and medium voltage energy control applications. Multilevel inverter is used to reduce the harmonic content in output waveform without decreasing the inverter power output. This paper presents the basic but important topologies diode-clamped inverter (N- point clamped), Capacitor clamped (flying capacitor) and Cascaded h-bridge with separated dc sources. This paper also includes advantages and disadvantages of multilevel inverters over conventional inverters along with its working principle and constructional features. The switching sequence of 3 level and 5 level for single leg of above mentioned topologies has been presented in this paper with their waveforms. The designs have been simulated in MATLAB/SIMULINK and the total harmonic distortion (THD) for voltage output has been carried out and comparison of DCMLI, FCMLI and CHB MLI is also done. Emerging topologies like asymmetric hybrid cells and modified cascade h-bridge multilevel inverters with reduced number of switches are also discussed.
Mithilesh Shivankar, Komal Deshmukh, Akshay Sahu, Abhijit Dutta
Multilevel Inverters (MLI), Diode Clamped Inverter (DCMLI), Flying Capacitor Multilevel Inverter (FCMLI), Cascade H-Bridge Inverter, hybrid multilevel inverter, modified cascade h-bridge multilevel inverter, THD
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Publication Details
  Published in : Volume 3 | Issue 2 | January-February 2017
  Date of Publication : 2017-02-28
License:  This work is licensed under a Creative Commons Attribution 4.0 International License.
Page(s) : 85-89
Manuscript Number : NCAEAS2320
Publisher : Technoscience Academy
PRINT ISSN : 2395-6011
ONLINE ISSN : 2395-602X
Cite This Article :
Mithilesh Shivankar, Komal Deshmukh, Akshay Sahu, Abhijit Dutta , "Multilevel Inverters : Comparison of Various Topologies and its Simulation", International Journal of Scientific Research in Science and Technology(IJSRST), Print ISSN : 2395-6011, Online ISSN : 2395-602X, Volume 3, Issue 2, pp.85-89, January-February-2017
URL : http://ijsrst.com/NCAEAS2320