1 results listed
A SEPIC (single-ended primary inductance converter)
DC-DC converter has become popular in recent years
particularly some applications where output voltage may be
above or below the converter input voltage. In this paper, the
interleaved SEPIC converter with coupled inductors is designed
and employed in photovoltaic (PV) system applications for
maximum power point tracking. The interleaved SEPIC is
constructed as two parallel conventional converter module. Thus,
the controller generates two PWM control signals with 180
degrees out of phase. In the designed SEPIC, the peak-currentmode controller is employed to control each inductor current
according to inductor current references (IL1 and IL2). The sum
of the inductor currents is the input (PV) current. In this study,
MPPT process is realized the reference voltage (Vref) generated
from MPPT algorithm is directly applied the PI controller, and
thus ILref is obtained for peak-current-mode-controller. The
system is analyzed for sudden irradiation varying conditions and
sudden load change. Simulation results show that the proposed
converter is very efficient in the MPPT process and has a fastdynamic response due to the peak-current-mode-controller and
the PI controller.
1.st International Conference Energy Systems Engineering
ıcese'17
Onur BIYIKLIOĞLU
Murat Ünlü
Sabri Çamur