Research On The Fuzzy Internal Model Control System Of Reheat Steam Temperature

The angle fuel wind- Reheat steam temperature process of power unit is a typical large inertia and large delay thermal object. The PID controller is difficult to meet the performance requirements of the object. In this paper, Fuzzy internal model control strategy is used to overcome the inertia and time delay of the Reheat steam temperature, increase the adaptability to load of the unit and ensure the stability of the Reheat steam temperature.The mathematical model of the angle fuel wind- Reheat steam temperature object is built through the power plant angle fuel wind- Reheat steam temperature's test data fitting. The Fuzzy internal model controller is designed for the mathematical model and simulated in MATLAB. Simulation results show that the Fuzzy internal model controller can control the plant well and has good robustness and good anti-disturbances ability.