Optimizing the Performance of the Photovoltaic System using the Micro DC-DC Converter

The generating capacity of photovoltaic (PV) systems depends on the operating environment and the modular topology. The previous research results showed that; with conventional types of coupling such as series (SC), parallel (PC), or series-parallel (SPC) when operating under uniform conditions, the characteristics curves do not change in shape. But when the working environment is heterogeneous due to partial shading conditions (PSC) the global maximum power point tracking (GMPPT) meet more difficulties due to having multiple extremes and easy to be trapped in local extremes (LMPP). To effectively solve this problem, the optimal algorithms for MPPT have strongly developed in recent years. This article introduces a Micro DC-DC converter incorporating an innovative MPPT solution for PV systems under PSC. The research results in the article have shown that: the proposed solution not only has a simple configuration, compact structure but also has high convergence speed and outstanding performance.