Robust and Intelligent Control for PV System of Two Converters:DC-DC Converter/ Single-Phase Modular Multilevel Converter to Operate Grid Connected

This paper proposed a Modular Multilevel Converter (MMC) incorporating a Sliding Mode Controller (SMC) technique to control the output current of MMC and the Fuzzy Logic (FL) controller maximum power point tracking (MPPT) is used to extract maximum power from the PV array. In photovoltaic systems: the DC-DC Boost converter is usually employed in the adaptation stage between the PV panel and the DC-AC converters on the other hand, it is used for boosting the array voltage and achieving maximum power point tracking for the PV array to the DC-link and a modular multilevel converter that serves as an interface. An MMCs main control objective is to synchronize the grid voltage and current while controlling the DC link voltage. Designing a sliding mode controller of output current for an injected pure sinusoidal current is the main goal of this paper. In previous literature output current strategy was based on a proportional resonant controller (PR); but currently, became advised Robust and Intelligent Controller. For example, in this work, in order to provide a high dynamic performance of MMC and power quality injected into the grid, we build a Sliding Mode Controller-based technique. Then, by using MATLAB/Simulink, the effectiveness and viability of the suggested method are demonstrated.