具有PID结构的改进广义预测控制算法

An Improved Algorithm for the PID-type Generalized Predictive Control

针对一般广义预测控制超调难以抑制的问题,通过改变一般预测控制的目标函数把PID与广义预测控制结合起来,利用PID的反馈作用改善系统的性能指标,并充分利用预测信息达到抑制超调和提高系统稳定性的目的,仿真结果表明该算法是有效的。

In this paper, the problem which difficulty of reducing the overshoot is discussed. An improved algorithm for the PID-type Generalized Predictive Control is derived by adding the proportion and differential structure to the usual cost function of predictive control. By using the feedback effect of PID to improve the ability of controllet, and the performance of the system is greatly improved by taking full advantage of the predictive information. The simulation results show that this control method is effective.