دانلود A Novel High Step-up DC-DC converter with Continuous Input Current Integrating Coupled Inductor for Renewable Energy Applications

Abstract

In this paper, a non-isolated DC-DC converter with high voltage gain is presented. Three diodes, three capacitors, an inductor and a coupled inductor  are  employed  in  the  presented  converter.  Since the inductor is connected to the input, the low input current  ripple  is  achieved  which  is  important  for  tracking maximum  power  point  of  Photovoltaic  (PV)  panels.  The voltage  stress  across  switch  S  is  clamped  by  diode  D1 and  capacitor  C1.  Therefore,  a  main  switch  with  low  on-resistance RDS(on) can be employed to reduce the conduction  loss.  Besides,  the  main  switch  is  turned  on under  zero  current.  This  makes  the  switching  loss  to  be reduced. The steady state analysis of the proposed converter is discussed in this paper. Finally, the proposed converter  prototype  circuit  is  implemented  to  justify  the validity of the analysis.