Efficient controllers for controlling nonlinear systems

In all the industrial applications nonlinear systems are very common. For controlling such systems various controllers are used from decades, such as manual controller, P, PI, PID, and fuzzy controllers. The paper consist of step response of nonlinear system and step response of system with P, PI, PID controllers and comparison of those result in MATLAB. Also the paper consists of fuzzy controller designed for nonlinear system. Here in this paper the CSTR model is considered to design a fuzzy controller. The paper shows that the closed-loop system is exponentially stable. At the end, simulation results are given to show the effectiveness of system with fuzzy controller.