Performance Analysis of Grid-Integrated Solar System Through Interlinking Converter with Control Schemes

The output power of photovoltaic (PV) arrays is directly proportional to the solar irradiance level. Therefore, the results of a PV panel highly relies on the prevailing weather circumstances. This cause, the outcome of a PV system can fluctuate rapidly, making it difficult to maintain a stable power supply. This paper analyzed the performance of PV panel integrated with the grid through interlinking converters at different attributes is the novelty in this article. The primary objective of the research included in this thesis is to contribute to the increased implementation of photovoltaic (PV) systems into electric networks. This objective can be met by precisely assessing the performance of PV systems without underestimating the impacts of these systems on the electric network. Overestimating or underestimating the performance of PV systems can lead to issues with electric network planning and operation. Using various control techniques, such as MPPT, voltage and current control, and Pulse Width Modulation (PWM), helps to increase the system's performance and ensure a stable and efficient power supply. These control techniques are implemented in MATLAB/Simulink using control blocks and algorithms, which are connected to the simulation model of the network. Furthermore, the simulation measures performed using a 100 kW solar system connected to a power grid show better performance with various power electronics components and also verify the performance of the boost converter and the LCL filter with a reduction in harmonics in the output of the proposed network. A significant value of the LCL filter reduces Total Harmonic Distortion (THD) percentage, 0.06% for the grid.