Dc Side Low Frequency Harmonic Elimination of Quasi Z Source Inverter

Dc Side Low Frequency Harmonic Elimination of Quasi Z Source Inverter

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
  
© 2017 by IJETT Journal
Volume-43 Number-7
Year of Publication : 2017
Authors : Shegna P.S, Krishnakumar. M
DOI :  10.14445/22315381/IJETT-V43P264

Citation 

Shegna P.S, Krishnakumar. M " Dc Side Low Frequency Harmonic Elimination of Quasi Z Source Inverter ", International Journal of Engineering Trends and Technology (IJETT), V43(7),384-387 January 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group

Abstract
In the existing inverter topologies quasi Z source inverters are the best solution for PV applications. When the quasi z source inverters are used for delivering power to the grid, the second harmonic fluctuating power will be present at the dc side of the inverter. Huge capacitor banks are required to eliminate the ripple, resulting bulky quasi Z source network. In this paper a new filter integrated method is introduced to eliminate the ripple at the dc side. Considerably the quasi z source impedance will be reduced. The operation principle, control mechanism of the filter, design procedures are explained. The simulation results verify the improved results using a filter integrated quasi z source.

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Keywords
Quasi Z Source Inverter, Second Harmonic Fluctuating Power.