自适应修正Smith算法在时滞系统中的应用

传统的Smith预估补偿控制要求较高的对象模型精度，为了提高系统的鲁棒性，提出了一种改进的Smith预估器。该算法根据历史预估结果动态地对预估输出进行修正，从而提高预估精度。将其应用于大时滞温控系统，取得了准确的预估输出和良好的控制品质。算法实现简单、应用灵活、适应性强，可以应用于其他有滞后影响的场合。

Application of Self-adaptive Modified Smith Algorithm in Time Delay System

Traditional Smith predictive compensation control requires more accurate models of the objects. To enhance robustness of the control system, a modified Smith predictor is designed. It makes dynamic correction to the predictive output according to the historical effects, thus the predicting accuracy is enhanced. After applying it in a temperature control system with large time delay, accurate predictive output and excellent control quality are achieved. The modified predictive algorithm is easy and flexible to realize, and it can be applied in other industrial processes with time-delayed characteristics.