Comparing performance of PID and fuzzy controllers in the present of noise for a Photovoltaic System

The main advantage of using fuzzy controller for a hard nonlinear system, for instance solar cell, is the reduction of effect of uncertainty in system control. In this paper, this prominent quality has been tried to represent more with comparing fuzzy and PID controllers. Although PID controller is a linear controller but it can control many nonlinear and industrial systems with a much better performance. Howbeit it has less robustness against uncertainty. We have indicated that if an uncertainty for example a noise or a changing in the parameter of system, enters during the operation of system, fuzzy controller will decrease the effect of it better than PID controller.