ANALYSIS OF COUPLED INDUCTOR BASED CONVERTER FOR THE GRID-CONNECTED PV SYSTEM
Abstract
The necessity of DC converters has been rapidly increasing due to the emergence of RES based
electrification. However, the converter designed so far exhibits a drawback of lower efficiency and noncompactness
in size. Hence, to rectify this problem, this work introduced a new topology called Coupled
Inductor (CI) based converter especially for grid associated PV system. The Objective is to attain maximum
output from PV and hence, the voltage stress over the converter switches can be minimized. Thus to track
maximum power from PV, PSODE MPPT was incorporated and is further enhanced using coupled inductor
based converter. The performance of grid associated PV system is examined in MATLAB simulation. The
grid output under different irradiation condition was examined. The results obtained reveals that the
efficiency of the proposed system is high when compared to existing topology