改进型模糊-Smith控制器在纸浆浓度控制系统中的应用

The Application of Improved Fuzzy-Smith Prediction Control in the Pulp Concentration Control System

本文提出改进型模糊-Smith控制器并将其应用于纸浆浓度控制系统。该控制器利用Smith预估算法克服纯滞后,利用模糊控制来提高系统的鲁棒性,而在稳态阶段则切换为PID控制来提高控制精度。仿真实验结果表明该方法可以提高系统的控制品质,实际应用表明了该控制器的优越性。

hnproved fuzzy-Smith prediction control is proposed in this paper and is applied to the control of pulp concentration. Smith predictor algorithm compensates for the time delay and fuzzy control is used to enhance the robusmess of the system and PID algorithm is used to improve the precision of system when it is steady. Simulation results indicate that the proposed method is capable of improving the control system performance; results of practical application indicate its superioriW.