A comparison between using A Firefly Algorithm and A Modified PSO Technique for Stability Analysis of a PV System connected to Grid
The Photo Voltaic Systems (PVS) has become a very important source of renewable energy sources, as a result of the global energy crisis as well as environmental pollution resulting from conventional energy sources. One of the most important applications of (PVS) are those connected to the electrical grid, despite the instability problems facing these systems. This paper studies the stability analysis of PVS connected to grid by using two modern techniques of artificial intelligence based Proportional-Integral (PI) controller. These two modern techniques used in this paper are a Firefly Algorithm (FA), and Adaptive Acceleration Particle Swarm Optimization (AAPSO) technique in order to voltage stability of PVS connected to three phase electrical distribution network for any rang of solar radiation. This paper uses the MATLAB / SIMULINK software, it has been implemented for the comparison of the conventional PI controllers, FA, and AAPSO used for photovoltaic DC voltage control. This comparison has been carried out to compare the settling times and overshoots of each technique, to find out whichever is most efficient for this purpose.