Reheated temperature adaptive fuzzy control system of unit

The purpose of this paper is to solve the control problem on the reheated temperature of unit which has such characteristics of time-varying, time delay and multi-disturbance, etc. The traditional control and general fuzzy control are difficult to dispose these matters that the model is time-varying, and the fuzzy rule number increases sharply with the increasing systemic variable number, so that the expression of the systemic knowledge becomes complex drastically. Accordingly, a new adaptive fuzzy control is proposed, which has a layered structure and makes use of the quasi-damping rate, oscillation degree, residual error and overshoot, and forms the monitor control rule set. It was applied to the reheated temperature system of the peak load modulation power unit. The simulation indicates that this method has preferable dynamic and static characteristics, and stronger robustness.