新型模糊预测PID控制在pH中和过程中的应用

Novel Fuzzy Predictive PID Control for pH Neutralization Process

利用自适应学习算法及模糊推理方法在线修正pH过程所得的局部线性化模型,同时基于广义预测控制(GPC)的思想和离散PID算法的相互关系,提出了一种以预测控制这类先进控制方法为思想,以经典PID控制为实现的新型控制器。其中,控制器的参数通过GPC与PID的相互关系递推计算得到。仿真研究表明本文所提出方法的可行性和有效性。

Adaptive learning algorithm and fuzzy inference method is utilized to modify the pH process.Based on the idea of GPC and the relation between the GPC and PID controller,a noveltuning algorithm for PID controller parameters is presented,whose corresponding parameters of the consequence are estimated by the RLS method.Simulation result shows the effectiveness and feasibility of the proposed method.