Abstract
This paper presents an intelligent-based algorithm for voltage stability analysis of photovoltaic generation (PVG) system connected to three phase utility grid for any rang of solar radiation using PI controller based Genetic Algorithm (GA) technique. Tuning the PI controller using genetic algorithms will be affected in the results of the steady state errors and the values of overhead voltages and settling times. This paper uses the MATLAB/SIMULINK software, it has been implemented for the comparison of the conventional PI controllers and the results after tuning the PI using Genetic Algorithm for photovoltaic DC voltage control it has been carried out to compare the values of settling times and overshoots voltages of each method.