Photovoltaic Energy Conversion Systems with Sliding Mode Control

A new sliding-mode-control-based power conversion scheme is proposed for photovoltaic energy systems. The perturbation and observation (P&O) maximum power-point tracking (MPPT) approach adopted optimizing the generation capabilities from solar panels. Due to inherent nonlinear dynamics of converters, we need adopt a control optimize efficiency tolerate fluctuations changes load sunlight irradiance. In this manuscript, novel first-and higher-order sliding mode approaches are proposed, aiming provide systematic robust optimal conversion, which guarantees Lyapunov stability consistent performance in face external perturbations disturbances. Moreover, eliminate chattering phenomenon first-order approach, super-twisting second-order developed buck-boost converter. Furthermore, output DC–DC converter supplies voltage-oriented-control (VOC)-based space-vector pulse-width-modulated inverter generate three-phase AC grid. To demonstrate robustness effectiveness scheme, computer simulations dSPACE hardware-in-the-loop platform have been carried on examining system.