广义预测PID在PLC温控系统中的应用

提出了一种基于可编程控制器（PLC）的广义预测（GPC）PID控制器,经过详细分析GPC和PID控制的特点,采用GPC与PID相结合的策略,设计了具有PID结构的自适应调节GPC控制器。针对具有未知或缓慢时变的参数的温控系统,广义预测控制技术是一种很有效的自我调节控制技术。通过实验验证了该控制器的有效性,实验结果表明,广义预测PID控制器具响应迅速、鲁棒性好、自适应能力强等优点。

Generalized predictive PID controller based on PLC temperature system

A Generalized Predictive PID Controller based on PLC is presented in this paper.Generalized predictive control(GPC)scheme has been reported as a useful self-tuning control technique for unknown and/or time variant delay systems.A self-adative and preset PID control algorithm by traversing a GPC criterion is proposed.Also the validity is validated through a series of experiments.The result of the tests shows that this controller has the characteristics of a fast response,robustness and a strong self-turning ...