Design and Implementation of Intelligent PI-Fuzzy Logic Control for Grid Connected Inverters

Synchronization is an important issue in the control of grid connected inverters and most of the algorithms use the phase measurement of the component of the voltage of the grid with the classical corrector PI. In this article, we use a new synchronization of the phase-locked loop (PLL) with a PI controller commissioned by the fuzzy logic. The gains of the PI controller are changed using the algorithm of fuzzy logic to obtain the performance of the phase angle fast despite the variations and disturbances of the network. In addition, the performance and the effectiveness of the strategy of the proposed method has been compared with the conventional control algorithm, and the result of the simulations with PSIM software and MATLAB/Simulink will be provided to illustrate key findings and control development. Finally, the experimental testing will be used to extract the result and discuss the feasibility and validity of the new proposed algorithm.