机械制浆过程磨机负荷内模PI控制
发布时间：2018-12-12 22:25
【摘要】：针对双盘磨机在运行过程中具有大滞后、大惯性及非线性等特点,内模控制作为一种先进控制策略,鉴于其对过程模型精度要求不高等优点,提出了一种基于内模控制原理的PI控制方法,该方法设计的控制器仅有一个可调参数,且通过最大灵敏度指标实现其整定,有效避免了控制器整定的复杂性与随机性.仿真结果表明,与常规PID控制相比,所提方法可有效减小模型参数变化及各种干扰对系统性能的影响,满足机械制浆生产过程对控制器性能的要求,保证磨机安全稳定运行,实现了磨机负荷的稳定化控制,为机械制浆过程综合自动化系统的实施奠定基础.
[Abstract]:In view of the characteristics of large lag, large inertia and nonlinearity in the operation of double-disc mill, the internal model control, as an advanced control strategy, has the advantages that the precision of the process model is not high, and so on. This paper presents a PI control method based on the principle of internal model control. The controller designed by this method has only one adjustable parameter, and the tuning is realized by the maximum sensitivity index, which effectively avoids the complexity and randomness of the controller tuning. The simulation results show that compared with conventional PID control, the proposed method can effectively reduce the influence of model parameters and various disturbances on the performance of the system, meet the requirements of the controller in the process of mechanical pulping production, and ensure the safe and stable operation of the mill. The stabilization control of mill load is realized, which lays a foundation for the implementation of the integrated automation system of mechanical pulping process.
【作者单位】： 东北大学流程工业综合自动化国家重点实验室;
【基金】：国家自然科学基金资助项目(61333007,61473064) 辽宁省教育厅科技项目(L20150186)
【分类号】：TP273;TS74
本文编号：2375336
[Abstract]:In view of the characteristics of large lag, large inertia and nonlinearity in the operation of double-disc mill, the internal model control, as an advanced control strategy, has the advantages that the precision of the process model is not high, and so on. This paper presents a PI control method based on the principle of internal model control. The controller designed by this method has only one adjustable parameter, and the tuning is realized by the maximum sensitivity index, which effectively avoids the complexity and randomness of the controller tuning. The simulation results show that compared with conventional PID control, the proposed method can effectively reduce the influence of model parameters and various disturbances on the performance of the system, meet the requirements of the controller in the process of mechanical pulping production, and ensure the safe and stable operation of the mill. The stabilization control of mill load is realized, which lays a foundation for the implementation of the integrated automation system of mechanical pulping process.
【作者单位】： 东北大学流程工业综合自动化国家重点实验室;
【基金】：国家自然科学基金资助项目(61333007,61473064) 辽宁省教育厅科技项目(L20150186)
【分类号】：TP273;TS74
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