基于OPC技术的DMC算法在甲醇汽油调配过程中的应用

Application of DMC Algorithm in the Methanol-Gasoline Mixing Process  Based on OPC Technology

摘要:

甲醇汽油调配过程中存在大量的大惯性、强耦合、纯滞后等问题,常规控制算法很难达到良好的控制效果；动态矩阵预测控制(DMC)算法通过模型预测、在线滚动优化和误差校正等环节,在没有精确模型的情况下能够实现良好的控制性能,因而提出一种OPC技术和MATLAB OPC工具包间进行通讯并实现DMC调配控制策略；将该算法应用到某石化有限公司的甲醇汽油调配控制系统过程中,结果表明此控制系统具有控制精度高、强抗干扰性、鲁棒性强等优点。

Abstract:

In the process of deployment of methanol-gasoline existed the problem of large inertia, time delay, strong coupling and uncertainty, the conventional control algorithm is difficult to achieve good control effect. DMC algorithm be used through model predicts, online rolling optimization and error correction etc, when there is no accurate model case, it can achieve good control of the control performance. Therefore, this paper proposed a dynamic matrix predictive control method based on OPC technology and MATLAB OPC Toolkit. This results show that the proposed control system has high control accuracy, strong anti-interference ability, strong robustness.