一种高速灌装自适应控制方法

发布时间：2018-06-03 04:43

本文选题：高速灌装 + 时变非线性　；参考：《仪器仪表学报》2017年07期

【摘要】：针对灌装精度要求高的小剂量高速药液灌装机,现在仍广泛使用手动灌装控制方法、难以解决因灌药系统特性时变所带来的灌装误差较大的问题,设计了一种基于高速灌装模型的智能灌装控制器,以提高高速灌装系统的灌药精度。以此为基础,为了解决因系统非线性所带来的灌装特性变化问题,提出了一种通过最小二乘法在线构建灌装系统局部线性化模型,对灌药系统灵敏度进行在线分析的方法,并设计了能够克服时变及非线性影响的自适应智能灌装控制算法。分别对手动控制、智能控制和自适应智能控制方法进行了实时灌装控制实验,结果表明自适应智能控制效果最好,智能控制器和自适应智能控制器均能够较好地解决系统特性时变带来的影响,并且自适应智能控制器具有克服灌装特性非线性影响的能力。
[Abstract]:The manual filling control method is still widely used in the low dose and high speed liquid filling machine, which requires high filling precision. It is difficult to solve the problem of large filling error caused by the time-varying characteristics of the filling system. An intelligent filling controller based on high speed filling model is designed to improve the precision of high speed filling system. On this basis, in order to solve the problem of filling characteristic change caused by system nonlinearity, a local linearization model of filling system based on least square method is put forward, and the sensitivity of filling system is analyzed on line. An adaptive intelligent filling control algorithm is designed to overcome the influence of time-varying and nonlinear. The experiments of manual control, intelligent control and adaptive intelligent control are carried out in real time filling control. The results show that the adaptive intelligent control is the best. Both the intelligent controller and the adaptive intelligent controller can solve the influence of time-varying system characteristics, and the adaptive intelligent controller has the ability to overcome the nonlinear effect of filling characteristics.
【作者单位】：楚天科技股份有限公司;中南大学信息科学与工程学院;两型社会与生态文明协同创新中心;
【基金】：科技部国家科技支撑计划(2015BAF11B02) 国家自然科学基金(61540037)项目资助
【分类号】：TP273

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