Applications Of Advanced Control Strategy In The Control Of Circulating Fluidized Bed

By making a deep study of ADRC, a new method of regulating the control parameter which is fit for the spot configuration of DCS system is proposed.Moreover, a new scheme of ADRC is introduced firstly.By analyzing normal PID controller's shortage and combining the theory of intelligent control with the prime of non-linear control, a PID algorithm based on exponential function compensation and a PID algorithm based on function switch compensation are created.In a 300MW power unit simulator, three kinds of superheater temperature control based on above three control strategies are erected.By lifting and dropping the running load, perfect control effects are gained.Through acting on the first wind-bed temperature model, simulation curves of above three control strategies and normal PID control strategy are obtained.The simulation effects show the superiority of those new strategies to the normal PID control strategy.Gao Feng (Control Theory and Control Engineering)Directed by prof.Wang Bingshu and associate prof.Lin Yongjun...