High efficient interleaved boost converter with novel switch adaptive control in PV systems

Energy conversion efficiency is an important factor for the long term feasibility of photovoltaic systems. Nowadays, even the most promising power converter topologies do not necessarily guarantee optimum performance under all operating conditions. For instance, the efficiency of the power conversion stage may be excellent during periods of high irradiance, but significantly lower in poorer light conditions. In this paper, the energy conversion efficiency of a standalone PV system is maximized over a wider range of operating conditions by employing an interleaved boost converter with novel switch adaptive control scheme. Experimental result show that the proposed converter control scheme offers better performance and higher conversion efficiency compared to the conventional operation of interleaved converter.