大纯滞后过程的多模式智能控制及仿真

Design and simulation of multi-mode intelligent controller for time-delay process

通过简要分析常规控制的不足,提出了一种基于偏差特征信息的多模式智能PID控制算法,具有加速控制、减速控制、稳态控制三种控制模式。算法用比例加速控制来解决系统暂态响应的快速性的要求、用微分减速控制来解决系统暂态响应的平稳性要求、用稳态激励控制解决系统稳态的准确性要求。把此算法应用于大时滞过程用MATLAB进行了仿真,与多种大时滞控制算法作比较,仿真证明了此控制算法的优良性能。该算法结构简单,通用性强,使用调整方便。

By analyzing characteristics of conventional control, a new type of multi-mode intelligent control algorithm is put forward based on the information of error. The algorithm consists of speedup control for the rapidity of transient response, slowdown control for the placidity of transient response and steady state stimulus control for the veracity of steady response. The control algorithm is applied to time-delay process, with other algorithms by comparison. The simulation shows its good performance with MATLAB language. The algorithm has simple structure, good generality and easy adjustment.