Modeling and Controller Design of Non Ideal Z-Source Converter

Abstract

This paper deals with the study of the non-ideal Z-Source inverter where the inductors and capacitors resistance are taken  into  account,  while  the  main  aim  of  the  Z-source  inverter for performing voltage buck and boost capabilities using a unique impedance  network  between  the  power  source  and  converter circuit  is  guarded.  In  this  paper  an  average  model  for  the  Z-Source  inverter  using  state  space  averaging  is  proposed.  Then, the  behaviors  of  the  studied  system  is  analyzed  based  on  the stability  of  the  presented  model,  this  analyze  leads  to  the  design of the suitable controller to be used to ensure the stability of the presented model. Finally the average model analyze is verified by simulation results.