Design of superheated steam temperature control using fuzzy logic controller

The steam superheat temperature control is critical to the efficient operation of utility boiler steam turbines. Conventional PID controllers cannot cope up with the system nonlinearities. The intelligent control techniques are being preferred for steam temperature control due to their inherent merits over conventional controllers. A fuzzy logic controller are designed and well tuned to control the steam temperature of the boiler. For developing Fuzzy logic toolbox MATLAB is used. Comparison of Fuzzy logic controller with conventional PID controller is also done. It is observed that Fuzzy logic controller is better than conventional PID controller.