Full Bridge LLC Resonant Converter Design for Photovoltaic Applications

In this study, full bridge LLC resonant converter is simulated for photovoltaic (PV) system. The maximum power point tracking (MPPT) algorithm perturb and observe (P&O) is used to track the maximum power point (MPP) in the PV system at different irradiance values. P&O algorithm is adapted with phase shift modulation and made suitable for resonant converter. The proposed system is simulated with PSIM under three different irradiance values. It can be seen from the simulation results that MPPT and soft switching conditions have been successfully achieved in all three irradiance values.